Type | Journal Article |
---|---|
Author | Fábio Gelape Faleiro |
Author | Nilton Tadeu Vilela Junqueira |
Author | Tatiana Góes Junghans |
Author | Onildo Nunes de Jesus |
Author | Diego Miranda |
Author | Wagner Campos Otoni |
URL | http://www.scielo.br/j/rbf/a/yjpfN7zvV9BtbdSNS74rcZz/abstract/?lang=en |
Volume | 41 |
Publication | Revista Brasileira de Fruticultura |
ISSN | 0100-2945, 1806-9967 |
Date | 2019-04-25 |
Extra | Publisher: Sociedade Brasileira de Fruticultura |
Journal Abbr | Rev. Bras. Frutic. |
DOI | 10.1590/0100-29452019155 |
Accessed | 11/18/2021, 3:30:11 PM |
Library Catalog | SciELO |
Language | en |
Abstract | Abstract The propagation of many passion fruit species (Passiflora spp.) is done by seeds or sexual method, although asexual propagation, such stem cuttings, grafting or tissue culture is also possible and very useful in many cases. In this work, it was presented information on scientific and technological advances in sexual and asexual propagation of passion fruit, considering the different propagation methods and their applications. New demands for research and development activities are also related, given the wide range of passion fruit species and its potential for food, ornamental and medicinal use. |
Date Added | 11/18/2021, 3:30:11 PM |
Modified | 11/20/2021, 10:50:47 PM |
Extracted Annotations (11/20/2021, 11:32:12 PM)
"dulis Sims that showss information is still incipient, considering the huge diversity of Passiflora that displays different characteristics for seed germination and storage (JUNGHANS, 2015). Besides the differences within species, there are differences between distinct accessions or cultivars in the same species (ALEXANDRE et al., 2004)." (p. 3)
"12a; GURUNG et al., 2014). uneven germination is the different physiologic maturity and quality of the seeds." (p. 3)
"In this context, the time of harvest to collect seeds 2016a). this time of harvest will vary among Passiflora species." (p. 3)
"e mature fruits and fermentation decrease the quality of organic substances and inorganic salts in the aryl inhibiting the germination." (p. 4)
"Dormancy is also a problem directly related to germination and storage of seeds from different species of passion fruit (ALEXANDRE et al., 2004; PASSOS et al., 2004; DELANOY et al., 2006; PÁDUA et al., 2011)." (p. 4)
"It is more common in wild or non-domesticated species since in the domestication process there is a selection of genotypes or processes that result in a high percentage of fast and uniform germination." (p. 4)
"In terms of different species of Passiflora, it breaking. the type of dormancy and treatment to break it, therefore more thorough studies considering the genetic variability of accessions and cultivars within each species are necessary." (p. 4)
"In in order to enable uniform and vigorous seedlings. present a low germination percentage due to natural dormancy or dormancy induced by the storage process." (p. 4)
"A et al., 2006; JUNQUEIRA et al., 2014). have characteristics such as high porosity, humidity retention capacity, proper value of pH and nutrients, capacity of cation exchange, low salinity besides allowing the availability of nutrients" (p. 5)
"for grafts in development (SOUZA et al., 2006)." (p. 5)
"Its for grafts in development (SOUZA et al., 2006). d include sand, soil, coconut fiber, commercial substrate or a mix of several substrates." (p. 5)
"However, one should take into consideration that most of passion fruits species show self-incompatibility. Consequently, in order to establish an orchard via asexual propagation, it is necessary to use propagation materials from different plants to enable a cross-fecundation and therefore the set of flower and fruit production." (p. 5)
"Important programs and use of genetic resources. assiflora species are kept ex situ in germplasm banks at research institutes. Because there is still a lack of knowledge about the best way to keep seeds from most of the species where some of them are possibly recalcitrant, in general the accessions are kept in vivo in greenhouses, screened greenhouses and in the field." (p. 6)
"Plant propagation through cutting has been successful in several commercial and wild passion fruits (Passiflora spp.)." (p. 7)
"Rooting of cutting and viable production (Passiflora spp.). ulis Sims) and sweet passion fruit (Passiflora alata Curtis), that show the highest commercial expression in Brazil, are higher than 90% (SALOMÃO et al., 2002). Those rates are also high for ornamental passion fruits (VIANA, 2016) evidencing the success of plant propagation through cutting." (p. 7)
"In some species, the use of vegetable regulators such as indolebutyric acid and adjusts in the used methodologies might considerably increase the success in seedlings production (VAZ et al., 2009; VIANA, 2016)." (p. 7)
"ment conditions that might vary a lot in scientifict papers. uccessfully made in most of the Passiflora species. However, the optimization of the methodology used might considerably increase the efficacy in seedlings production in different species, accessions and cultivars." (p. 7)
"Variations in rooting rates and efficacy of vegetative propagation through cuttings within the same species of passion fruit are commonly observed in many scientific papers (SALOMÃO et al., 2002; PAULA et al., 2005)," (p. 7)
"Plant propagation through grafting has been advocated for passion fruit since it combines traits of interest from the root stock and graft." (p. 7)
"In terms of diseases, the most serious ones in sour passion fruit (P. edulis Sims), include wilt and foot rot caused by Fusarium oxysporum f. sp. passiflorae and Fusarium solani, respectively." (p. 7)
"um f. sp. passifloraeo cultivar resistant or satisfactory chemical control for these diseases causing the farmers to be disappointed since the infected plants die at the beginning of their productive period." (p. 7)
"ANTOS et al., 2016b).limit a higher compatibility between the rootstock and graft when commercial species are used in comparison to wild species of Passiflora is the difference in the stem diameter of plants from distinct species obtained through seeds." (p. 8)
"There have been grafts with high phytosanitary quality. ning the micropropagation of many species of Passiflora using different types of explants and culture medium (VIEIRA et al., 2005; OZAROWSKI and THIEM, 2013; OTONI et al., 2013). However, the main factor that limits these methodologies is the low reproducibility of some protocols developed for the culture, since they are specific to the species and sometimes to cultivars (PASSOS; BERNACCI, 2005)." (p. 9)
"Despite the great technological advances in tissue cultures of different species of passion fruit, the use of technology in the production of grafts is still incipient." (p. 10)
Type | Journal Article |
---|---|
Author | Rebecca T Tague |
Author | Stephanie A Foré |
URL | https://cdnsciencepub.com/doi/abs/10.1139/b05-014 |
Volume | 83 |
Issue | 4 |
Pages | 420-426 |
Publication | Canadian Journal of Botany |
ISSN | 0008-4026 |
Date | April 1, 2005 |
Extra | Publisher: NRC Research Press |
Journal Abbr | Can. J. Bot. |
DOI | 10.1139/b05-014 |
Accessed | 11/18/2021, 6:23:31 PM |
Library Catalog | cdnsciencepub.com (Atypon) |
Date Added | 11/18/2021, 6:23:31 PM |
Modified | 11/18/2021, 6:23:31 PM |
Extracted Annotations (11/29/2021, 12:37:16 AM)
"Although P. incarnata is an early colonizer, its sexual and vegetative reproductive modes and fruit dispersal mode are not characteristic of early colonizers." (p. 421)
"In this study, we examine the genetic structure of P. incarnata in recently disturbed habitats at three spatial scales: within a patch, among patches separated by approximately 250 m, and between sites separated by approximately 10 km." (p. 421)
"Self-incompatibility and length of pollinator travel imply outbreeding and long-distance gene flow between P. incarnata individuals within and between populations." (p. 421)
"The inbreeding coefficient (F*) in patches ranged from −0.104 to +0.015 suggesting that there was little inbreeding (Table 2)." (p. 423)
"Values so close to zero are an indication of a primarily outbreeding population." (p. 424)
"There was little overall differentiation among patches. Nei's mean genetic identity ranged from 0.984 to 0.997 (Table 4)." (p. 424)
"Relatively high diversity within populations and little variation among populations differs from the pattern expected for early colonizing species (reviewed in Hamrick 1989) with populations founded by a small number of individuals." (p. 425)
"Selfincompatibility (May and Spears 1988) and long distance transport of pollen by pollinators (Cunningham 2000) likely enhance gene flow in P. incarnata." (p. 425)
"Passiflora incarnata patches in this study were likely established from seeds." (p. 425)
"Little is known about seed dispersal in this species, although it is likely that mammals (Spears and May 1988) eat the heavy, many-seeded fruit." (p. 425)
"As P. incarnata may have a longer life through succession than many other early successional species, it would be interesting to determine if the allelic patterns reflect a shift from predominantly sexual to vegetative reproduction as the community ages." (p. 425)
Type | Journal Article |
---|---|
Author | M. S. Gins |
Author | V. K. Gins |
Author | A. A. Baikov |
Author | P. F. Kononkov |
Author | V. F. Pivovarov |
Author | N. I. Sidelnikov |
Author | A. M. Rabinovich |
Author | T. N. Zagumennikova |
Author | A. V. Kotsubinskiy |
Author | A. K. Zlotnikov |
Author | K. M. Zlotnikov |
Author | O. I. Goncharova |
URL | https://doi.org/10.3103/S1068367417050068 |
Volume | 43 |
Issue | 5 |
Pages | 384-389 |
Publication | Russian Agricultural Sciences |
ISSN | 1934-8037 |
Date | 2017-09-01 |
Journal Abbr | Russ. Agricult. Sci. |
DOI | 10.3103/S1068367417050068 |
Accessed | 11/18/2021, 3:15:32 PM |
Library Catalog | Springer Link |
Language | en |
Abstract | The aim of this study was to determine the accumulation of antioxidants at аn early stage of development of organs of P. incarnata L. plants grown in greenhouses (medicinal aromatic plants were used for comparison), as well as to evaluate the effect of biostimulant Albit. The use of amperometric and biochemical methods made it possible to measure and evaluate the total antioxidant content in aqueous extracts of leaves of aromatic plants with sedative effects compared to aqueous extracts of P. incarnata L. leaves. The latter are characterized by a lower level of antioxidant accumulation. Seed treatment with biostimulant Albit and foliar treatment of aerial parts of the P. incarnata L. plant increased the total antioxidant content and the content of carotenoids, chlorophylls a and b, and the yield of aerial parts of the plant by 10–15%. The findings suggest that the P. incarnata L. plants grown in greenhouses can be used to create antioxidant herbal remedies. |
Date Added | 11/18/2021, 3:15:33 PM |
Modified | 11/18/2021, 3:15:33 PM |
Extracted Annotations (11/28/2021, 8:40:35 PM)
"German researchers hypothesized that the main compound responsible for the sedative effect is passiflorin (triterpene glycoside)." (p. 385)
"Albit produced on the basis of soil bacteria Bacillus megaterium is a biopreparation widespread in the practice of agriculture." (p. 385)
"The object of the study were first-year seedlings of Passiflora incarnata L. obtained from the seeds of the fruits of purple passionflower grown in the Nikitsky Botanical Garden." (p. 385)
"grown outdoors in the fields of the All-Russia Research Institute of Selection and Seed Growing of Vegetable Crops as well as purple passionflower plants in protected soil under natural illumination and temperature of 20-25°C" (p. 385)
"This study used true simple leaves of purple passionflower of the first three tiers and the subsequent three-bladed leaves." (p. 385)
"For the production of purple passionflower seeds, the fruits were freed from the shell and left in a glass container in the form of a pulp. From the fermented mass, the seeds were easily washed with water on sieves. Seeds selected by flotation were used for sowing. They were immersed in small containers filled with water. Empty and damaged seeds were drained together with water, and the selected ones were dried and stratified in sand. Before sowing, the seeds were pretreated with 1% hydrogen peroxide at 4°C for 24 h. Sowing was carried out in pots with a peat mixture to a depth of 2-3 cm." (p. 385)
"The leaves of purple passionflower plants were treated with a biostimulant Albit in a concentration of 5 mL/10 L water in the phase of growth of the first two true leaves." (p. 386)
"Monitoring of the growth and development of seedlings was carried out starting from sprouts (7-12 days after sowing). At the same time, the main number of sprouts appeared at intervals of up to 3 days, and a part of the shoots appeared after 7-10 days. First there were two cotyledonous leaves and then one after another four simple leaves appeared sequentially." (p. 386)
"As a result, it was found that well-developed seedlings can be obtained (average height 36-42 cm) in a relatively short period (four weeks)." (p. 386)
"The first tendrils appeared in plants after 4 weeks, mainly from the ninth internode. Part of the plants formed lateral shoots at the beginning of the second true leaf, others formed shoots on the stem after the 16th leaf, and some plants did not form lateral shoots. The six true leaves formed on the stem were simple." (p. 386)
"The stem was rounded grassy, slightly lignified in the base, hollow inside, at home up to 9 m in length, under our conditions up to 3-4 m, and 4-5 mm in diameter at the root neck." (p. 386)
"When processing with the biopreparation Albit, the effect of increasing the total antioxidant content was significantly manifested only in the three-bladed leaf, with the increasing tendency of their total content in the third and fourth simple leaves (Table 1). It should be noted that, after treatment with Albit, the total antioxidant content in the tendrils increased." (p. 386)
"A common regularity for all the samples studied was a higher content of photosynthetic pigments in plants treated with the biostimulant Albit." (p. 386)
"A comparative study of the total antioxidant content in three-bladed leaves of 3-month-old seedlings treated with Albit and without treatment showed no significant differences (Table 3)." (p. 386)
"A common regularity for these variants was a gradual decrease in the total antioxidant content in the leaves of the uppermost layer (eighth to tenth leaf)." (p. 386)
"Thus, the study of the accumulation of antioxidants in the ontogeny of seedlings (3 months old) and the growth of leaves on the stem revealed the accumulation of a minimum content of antioxidants in the" (p. 386)
"first six leaves of seedlings and a significant increase in the content of antioxidants in the growing leaves." (p. 387)
"It should be noted that, at this age, 23-29 fully developed leaves were noted in plants treated with the biostimulant Albit, whereas it was 17-20 in control plants. In this case, treated plants had 10-15% more leaf plates in terms of the area and weight." (p. 387)
"The minimum total content of these substances was accumulated in the six first true leaves and the maximum total content was accumulated in the three-bladed leaves of the lower and upper tiers." (p. 388)
"Under the influence of Albit, formation of six to nine additional leaves of purple passionflower (counting per plant) was noted." (p. 388)
Type | Journal Article |
---|---|
Author | Amir Rezazadeh |
Author | Eric T. Stafne |
URL | https://www.ijcmas.com/abstractview.php?ID=10897&vol=7-11-2018&SNo=353 |
Volume | 7 |
Issue | 11 |
Pages | 3074-3083 |
Publication | International Journal of Current Microbiology and Applied Sciences |
ISSN | 23197692, 23197706 |
Date | 2018-11-20 |
Journal Abbr | Int.J.Curr.Microbiol.App.Sci |
DOI | 10.20546/ijcmas.2018.711.353 |
Accessed | 11/18/2021, 6:31:13 PM |
Library Catalog | DOI.org (Crossref) |
Language | en |
Date Added | 11/18/2021, 6:31:13 PM |
Modified | 3/5/2022, 5:59:00 PM |
Extracted Annotations (11/21/2021, 12:09:40 AM)
"The experiment was performed in 2018, in a greenhouse at the United States Department of Agriculture-Agricultural Research Service (USDA-ARS), Thad Cochran Southern Horticultural Laboratory in Poplarville, MS, USA (lat. 30° 85'36" N, long. 89°49'94" W, elevation 97 m, USDA hardiness zone 8b). Seeds of P. incarnate were obtained in 2017 from physiologically ripe fruits collected from plants grown in the same location as above." (p. 3076)
"Seeds of other species including P.tripartita var. mollisima, P. maliformis, P. edulis f. edulis 'Frederick', P. ligularis, P.quadrangularis L., and P. laurifolia were purchased from Trade Winds Fruit (Santa Rosa, CA, USA) (Table 1)." (p. 3076)
"Seeds with irregular shape or color were removed after visual inspection prior to treatment." (p. 3077)
"Seeds were sowed into 72-cell seedling flats containing a commercial substrate (SunGro Sunshine Professional Mix 3, Bellevue, WA, USA). The seeds were intermittently misted at 5 s per 10 min, under natural photoperiod with ambient sun light and 25±3°C constant daily temperature on 8th April 2018." (p. 3077)
"All the cumulative germination curves showed germination starting at least two weeks after sowing seeds in all treatments." (p. 3077)
"Germination was observed in P. incarnata and P. quadrangularis only in response to soaking in water and scarification plus fermentation treatments (Table 3)." (p. 3077)
"Overall, in all species except P. maliformis and P. tripartite var. mollissima, scarification plus GA3 resulted in poor germination." (p. 3077)
"The average germination percentage for P. edulis from other studies was significantly higher than our results. The highest percentage in our study was 16%, which is far lower than 62.79% average germination reported previously (Gutiérrez et al., 2011; Mabundza et al., 2010; Imliwabang and Alila, 2014; Ramírez Gil et al., 2015)." (p. 3078)
"Thus, it is likely that 90 d was not long enough to observe seed germination for this species in this study." (p. 3078)
"The highest germination percentage for P. incarnate was 8% in treatment 4, which was significantly lower than the average germination of 38.2% reported by Wehtje et al., (1985) and Benvenuti et al., (2001)." (p. 3082)
"Both authors reported that P. incarnata seed germination can be inhibited by light and that pre-soaking of seeds is necessary for even moderate levels of germination." (p. 3082)
"The greenhouse temperature that the seeds were kept in our study was around 25°C. Benvenuti et al., (2001) found that higher temperatures of 35°C along with the absence of light were the best conditions for germination of P. incarnata." (p. 3082)
"Based on our results, scarification plus fermentation is the recommended treatment for P. laurifolia seeds, resulting in 75% germination." (p. 3082)
"For P. maliformis, scarification in combination with GA3was the most effective treatment on germination percentage (40%)." (p. 3082)
"P. tripartite var. mollissima showed highest germination percentage when soaked in water or scarified plus GA3 (30%)." (p. 3082)
"3in best germination percentage in P. ligularis (30%)." (p. 3082)
"Germination percentage was highest (20%) for P. incarnata when pre-soaked in water." (p. 3082)
"Scarification plus fermentation is suggested as a treatment to improve germination in P. edulis." (p. 3082)
"Results indicate that the seed pregermination treatments of the seven species tested in this study may improve germination potential; however, it depended highly on species." (p. 3082)
"No pre-germination treatment resulted in complete germination for all species. Dormancy is probably exogenous and combination of chemical and mechanical based on the results obtained." (p. 3082)
Type | Journal Article |
---|---|
Author | Marcela C. Goulart |
Author | Luis G. Cueva-Yesquén |
Author | Kelly J. Hidalgo Martinez |
Author | Derlene Attili-Angelis |
Author | Fabiana Fantinatti-Garboggini |
URL | https://onlinelibrary.wiley.com/doi/abs/10.1002/mbo3.896 |
Rights | © 2019 The Authors. MicrobiologyOpen published by John Wiley & Sons Ltd. |
Volume | 8 |
Issue | 10 |
Pages | e896 |
Publication | MicrobiologyOpen |
ISSN | 2045-8827 |
Date | 2019 |
Extra | _eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1002/mbo3.896 |
DOI | 10.1002/mbo3.896 |
Accessed | 11/18/2021, 6:24:45 PM |
Library Catalog | Wiley Online Library |
Language | en |
Abstract | Plants and endophytic microorganisms have coevolved unique relationships over many generations. Plants show a specific physiological status in each developmental stage, which may determine the occurrence and dominance of specific endophytic populations with a predetermined ecological role. This study aimed to compare and determine the structure and composition of cultivable and uncultivable bacterial endophytic communities in vegetative and reproductive stages (RS) of Passiflora incarnata. To that end, the endophytic communities were assessed by plating and Illumina-based 16S rRNA gene amplicon sequencing. Two hundred and four cultivable bacterial strains were successfully isolated. From the plant’s RS, the isolated strains were identified mainly as belonging to the genera Sphingomonas, Curtobacterium, and Methylobacterium, whereas Bacillus was the dominant genus isolated from the vegetative stage (VS). From a total of 133,399 sequences obtained from Illumina-based sequencing, a subset of 25,092 was classified in operational taxonomy units (OTUs). Four hundred and sixteen OTUs were obtained from the VS and 66 from the RS. In the VS, the most abundant families were Pseudoalteromonadaceae and Alicyclobacillaceae, while in the RS, Enterobacteriaceae and Bacillaceae were the most abundant families. The exclusive abundance of specific bacterial populations for each developmental stage suggests that plants may modulate bacterial endophytic community structure in response to different physiological statuses occurring at the different plant developmental stages. |
Date Added | 11/18/2021, 6:24:45 PM |
Modified | 11/18/2021, 6:24:45 PM |
P. incarnata L. cv. CF 01 leaves were collected in April 2015 and January 2016 from the Centroflora Group agricultural field located at Botucatu, state of Sao Paulo, Brazil (22º56′23.4″S 48º34′11.6″W).
Leaf tissues were treated with 100% ethanol for 3 min, followed by 2% sodium hypochlorite for 2 min, and 70% ethanol for 3 min.
Our results show the occurrence of specific endophytic populations at each developmental stages of this host (vegetative and reproductive). Endophytic groups that possibly boost plant growth were predominant at the VS, while groups associated with plant resistance and protection occurred more frequently at the RS.
However, in this study, the number of bacterial species (84 total) recovered by plating represented almost 20% of the overall number of OTUs (430) total detected by Illumina-based sequencing.
During the CS of the host-plant, various metabolites are produced and mobilized for the growth of stems, branches, and leaves. Crucially, within the plant grows demand for nutrients such as nitrogen, phosphorus or iron, which are not always bioavailable. Therefore, the microbial groups that facilitate the intake of these nutrients could be selected by the plant and coevolve with it to supply for the physiological needs of the VS. This hypothesis was confirmed in this study, as the dominant taxonomic groups in the VS are commonly characterized as plant growth promoter microorganisms.
During its development, the plant host may show a predisposition to be colonized by bacterial populations that participate in the defense against pathogens. This might explain why predominant taxonomic groups in the RS are heavily related to bacterial groups that have previously shown influence on resistance to some infectious diseases.
Both the culture-dependent and culture-independent approaches showed that specific bacterial populations were exceptionally abundant for each development stage, which may be due to endophyte selection being driven by physiological changes (such as nutritional requirements or susceptibility to pathogens) occurring during the host development.
Type | Journal Article |
---|---|
Author | R. J. Knight |
URL | https://journals.ashs.org/hortsci/view/journals/hortsci/26/12/article-p1541.xml |
Volume | 26 |
Issue | 12 |
Pages | 1541-1543 |
Publication | HortScience |
ISSN | 0018-5345, 2327-9834 |
Date | 1991/12/01 |
Extra | 00000 Publisher: American Society for Horticultural Science Section: HortScience |
DOI | 10.21273/HORTSCI.26.12.1541 |
Accessed | 11/27/2021, 10:04:19 PM |
Library Catalog | journals.ashs.org |
Language | en_US |
Abstract | When Passiflora incarnata L. was crossed with P. edulis f. flavicarpa Degener, all plants of the diploid hybrid were pollen-sterile and nonfruitful. Doubling the chromosome number of emergent FI seedlings with colchicine restored fertility in some individuals, but all plants were strongly self-incompatible and many showed low pollen viability. Crossing colchicine-treated plants that had been converted to amphiploids produced a tetraploid hybrid group of four seedling progenies that had some degrees of cross-compatibility. Juice of the amphiploid hybrid is lighter in color than that of P. edulis, but is sweet, strongly aromatic, and may have use alone or, typically, as a blend with other juices. |
Date Added | 11/27/2021, 10:04:19 PM |
Modified | 11/27/2021, 10:04:20 PM |
Extracted Annotations (11/29/2021, 9:32:09 PM)
"In 1971, a clone of maypop (Passiflora incarnata) collected in Tennessee was crossed with P. Cincinnati Masters (P.I. 98883), a passion vine from Argentina with spectacularly colorful flowers. The F, hybrid, named 'Incense', was released in 1973 (U.S. Dept. of Agriculture, 1976) and continues to be sold in the nursery trade." (p. 1541)
"Because of sterility of such diploid interspecific hybrids (2n = 18; Darlington and Wylie, 1955), an initial and essential aspect of the overall objective was to recover fertility by doubling the chromosome number of F1 hybrids to produce a group of tetraploid plants capable of crossing among themselves even though they could not be backcrossed to either of the diploid parental species because of the difference in ploidies." (p. 1541)
"In Summer 1979, a clone of P. incarnata collected by H.F. Winters in Maryland was crossed with three introductions of P. edulis: P.I. 424813, a purple-fruited form collected wild in Brazil; P. edulis f. flavicarpa (M- 17236, yellow-fruited); and an intraspecific hybrid (M-21471) derived from crossing a purple-fruited strain from Australia, 'Norfolk Island', with a clone of P. edulis f. flavicarpa (P. I. 243804) brought to Florida from Trinidad (Table 1)." (p. 1541)
"Seedlings from these crosses were treated upon emergence with a 0.2% aqueous solution of colchicine to double ploidy and thus restore fertility." (p. 1541)
"Three of the colchicine-treated seedlings were successful seed parents and four succeeded as pollen parents (Table 1). The seven fertile colchiploids were intercrossed to produce four families of seedlings that were used in later work." (p. 1541)
"Fifteen of these consistently showed a somatic number of 36, whereas one, M264611, had cells that varied in chromosome number from 34 to 36. Thus, a functioning tetraploid population had been achieved." (p. 1542)
"Without exception, all the amphiploid hy- 1542 brids observed in 1985 and 1986 were strongly self-incompatible, indicating that a population of dependable pollinating insects will be needed wherever this crop is grown." (p. 1542)
"Thus, there is reason to expect that juice of selections from the tetraploid hybrid group can be put to many of the same uses as is juice of the purple or yellow passion fruit." (p. 1542)
"The self-incompatibility of the hybrid plants puts potential growers at a definite disadvantage because it necessitates taking measures to ensure cross-pollination." (p. 1542)
"Cultivated forms of P. edulis are known to encompass self-compatible genotypes (Knight and Winters, 1963), but no self-compatible forms of P. incarnata have been confirmed to date." (p. 1543)
"Therefore, if self-compatible forms of this species can be found, it would appear desirable to use such material in resynthesizing the interspecific hybrid." (p. 1543)
Type | Journal Article |
---|---|
Author | Heather C. Wheeler |
Author | Cynthia C. Bennington |
URL | https://www.jstor.org/stable/24321060 |
Volume | 64 |
Issue | 4 |
Pages | 237-245 |
Publication | Florida Scientist |
ISSN | 0098-4590 |
Date | 2001 |
Extra | Publisher: Temporary Publisher |
Accessed | 11/18/2021, 5:55:35 PM |
Library Catalog | JSTOR |
Abstract | Passiflora incarnata, a perennial vine common in disturbed sites in central Florida, produces cyanogenic glycosides as a chemical defense against herbivores. The leaves are palatable, however, to specialist herbivore larvae of heliconiine butterflies including Agraulis vanillae. We investigated six different P. incarnata populations from sunny and partly shady sites to determine if this chemical defense is affected by light availability. In addition, we asked whether plants that had experienced herbivory in the field increased the production of cyanogenic glycosides. From each sun and shade population we collected leaves from plants that had previously experienced herbivory and from plants that had little or no evidence of herbivory, for a total of 251 plants sampled. Although there was significant variability in cyanide production among the six populations, it was not related to light environment. In addition to assaying for cyanide production, we asked whether the performance of Agraulis vanillae is affected by either the site of origin or previous herbivory experienced by P. incarnata. There was some evidence that sun and shade populations have different chemical responses to previous herbivory. Caterpillars tended to eat a greater amount of leaf tissue from branches that had not previously experienced herbivory with this difference being greatest in sun leaves. Caterpillar growth rate, however, was not affected by light availability or previous herbivory. |
Date Added | 11/18/2021, 5:55:35 PM |
Modified | 11/20/2021, 9:53:46 PM |
Cyanogenic glycosides are produced by all members of the genus Passiflora and are capable of releasing hydrogen cyanide (HCN) from damaged plant tissues.
Thus, although A. vanillae is considered a specialist herbivore of P. incarnata, and cyanogenic glycosides are typically considered "qualitative" defense chemicals that are ineffective against a specialist, there may be some deterrent effect of cyanogenic glycosides in Passiflora on A. vanillae.
Sun and shade sites did not differ in levels of cyanide produced from field-collected leaves although there was significant variability among the six populations studied.
In particular, leaves from the sun that had previously experienced herbivory had lower levels of cyanide in our assays than those leaves that had not experienced herbivory. Shade leaves, however, produced similiar levels of cyanide in our assay regardless of previous field herbivory (Fig. 1).
Type | Journal Article |
---|---|
Author | S Benvenuti |
Author | G Simonelli |
Author | M Macchia |
URL | https://www.researchgate.net/publication/288121705_Elevated_temperature_and_darkness_improve_germination_in_Passiflora_incarnata_L_seed |
Volume | 29 |
Pages | 533-541 |
Publication | Seed Science and Technology |
Date | 2001 |
Library Catalog | Zotero |
Language | en |
Abstract | Maypop (Passiflora incarnata L.) seeds were photoblastically negative and had pronounced heat requirements for germination characteristic of a warm season species. Optimal germination (approximately 90%) was achieved at 35°C, while a drastic fall in germination occurred at lower temperatures (reduced by approximately 50 and 15% at 30 and 25°C, respectively). Mean germination times (MGT) were inversely proportional to temperatures independent of light conditions. The “x intercept” method identified the lowest germination threshold for maypop seeds at 25.4 and 23.9°C in darkness and light, respectively. The negative effect of light on germination occurred during the first 24 or 36 hours of incubation as a function of temperature (35 and 30°C, respectively). Red and farred light were more effective than blue and white light in inhibiting germination at 30°C, but at 35°C no difference in germination rate was observed. Seed exposure to repeated irradiation with red and far-red light induced no difference in germination percentage, suggesting that the influence of phytochrome is only slight or absent. |
Date Added | 11/18/2021, 6:04:43 PM |
Modified | 3/5/2022, 5:59:08 PM |
Extracted Annotations (11/20/2021, 10:23:44 PM)
"Maypop seeds were collected in late summer 1999 at Sansepolcro (Arezzo, Italy) on plants cultivated as medicinal herbs. Seeds were extracted from the fleshy fruits, washed, air dried and stored at 20°C in glass containers until required for use (January 2000)." (p. 534)
"Seeds were disinfected with sodium hypochlorite (0.5% v/v) for 10 min before use, air dried, and imbibed on a single sheet of moistened (7 ml of distilled water) filter paper (Whatman no.1) and placed in 12 cm Petri dishes." (p. 534)
"Pronounced negative photoblasty was observed." (p. 535)
"For example, at the optimal temperature, found to be roughly 35°C, light germination was about 65% of that achieved in darkness, while at the more limiting temperatures of 30 and 25°C, light germination was only 30 and 25%, respectively, of values recorded in darkness." (p. 535)
"It should also be noted that 20°C proved to be below threshold germination level in this species, while the optimal temperature of 35°C resulted in germination of 90 and 60% in darkness and light, respectively." (p. 535)
"Time required for germination decreased progressively with increasing temperature, virtually independent of light conditions." (p. 535)
"Thus, MGT was roughly one week at 25°C (a temperature close to the lower germination threshold) but fell to about 3.5 days in" (p. 535)
"non-limiting temperature conditions (35°C)." (p. 537)
"30 and 35°C. For the first 6 h of incubation at either temperature, light had no negative effects on final germination, showing values statistically similar (p< 0.01) to dark germination." (p. 537)
"But, at an incubation temperature of 35°C, this effect was saturated after 24 h of light exposure, giving values statistically equal to those expressed by seeds exposed to continuous irradiation; while at 30°C, light remained active for over 30 h. Thus at 30°C results similar to those produced by continuous irradiation exposure were obtained only after 36 h of light." (p. 537)
"At 35°C, exposing seeds (presoaked for 12 hours) to specific regions of the light spectrum (red, far-red, blue, white) had no influence on the final results, as no significant differences were observed (table 1)." (p. 537)
"However, at the suboptimal temperature of 30°C, the red and far-red regions of the spectrum displayed more pronounced inhibition of germination. These light qualities produced extremely low levels of germination (around 5%), which were statistically different from germination under blue and white light (18 and 15%, respectively)." (p. 537)
"Furthermore, maypop exhibited very high temperature requirements, with even 30°C being partially limiting. Elevated germination (approximately 90%) was reached only at 35°C." (p. 539)
"Note, however, that the presence or absence of light has no influence on germination speed." (p. 539)
"The period during which seeds were sensitive to the negative effect of light on germination (figure 5) was a function of incubating temperature (24 and 36 h at 35 and 30°C, respectively)." (p. 540)
"When seeds were incubated under light obtained from different regions of the light spectrum (red, far-red, blue, white and dark), significant (p<0.01) differences in germination percentage were observed only in suboptimal heat conditions (30°C), while there was no effect at 35°C (table 1)." (p. 540)
"However, the germination inhibition observed at 30°C was unexpectedly induced both by red and far-red light. These regions of the visible wavelengths exerted a greater effect than blue or white light." (p. 540)
"But it was also observed that repeated irradiations (table 2) generally capable of activating (red light) or deactivating (far-red) seed phytochrome in other species (Benvenuti and Macchia, 1998) were ineffective on maypop, suggesting that germination of this species is not primarily influenced by phytochrome status." (p. 540)
"This indicates that light-related germination inhibition in maypop seeds may be mediated by the so-called high-irradiance response (HIR) of photomorphogenesis already observed in other species (Mancinelli and Rabino, 1978)." (p. 540)
Type | Book Section |
---|---|
Author | Marcela Cristina Goulart |
Author | Luis Gabriel Cueva-Yesquén |
Author | Derlene Attili-Angelis |
Author | Fabiana Fantinatti-Garboggini |
Editor | Doris Zúñiga-Dávila |
Editor | Fernando González-Andrés |
Editor | Ernesto Ormeño-Orrillo |
URL | https://doi.org/10.1007/978-3-030-17597-9_8 |
Series | Sustainability in Plant and Crop Protection |
Place | Cham |
Publisher | Springer International Publishing |
Pages | 127-139 |
ISBN | 978-3-030-17597-9 |
Date | 2019 |
Extra | DOI: 10.1007/978-3-030-17597-9_8 |
Accessed | 11/18/2021, 6:23:37 PM |
Library Catalog | Springer Link |
Language | en |
Abstract | Passiflora incarnata, a member of Passifloraceae family, is a traditional herb widely used as medicine since ancient times. It has extensive medicinal uses because of its high flavonoid content. Due to the high degree of interactions between endophytic bacteria and plants, it is believed that these microorganisms can produce metabolites initially produced by their host. Based on this hypothesis, the objective of this work was to analyze the genetic potential for flavonoid production of endophytic bacteria isolated from passion fruit plants, applying a PCR-based approach with genus-specific primers. Twenty strains from ten species within the genus Sphingomonas were tested for presence of the flavonol synthase (FLS) gene. The primers used effectively detected the FLS gene in all strains, but in two species, nonspecific bands appeared. A phylogenetic tree was constructed to evaluate the distribution of the gene among the strains used in this work. Phylogenetic analyses suggests that horizontal gene transfer (HGT) events occurred among various strains. This work may contribute to further research efforts aiming at the production of flavonoids by endophytic bacteria, based on the ability of these microorganisms to acquire genes from their hosts. |
Book Title | Microbial Probiotics for Agricultural Systems: Advances in Agronomic Use |
Date Added | 11/18/2021, 6:23:37 PM |
Modified | 11/18/2021, 6:23:37 PM |
Extracted Annotations (11/27/2021, 1:27:20 PM)
"Thus, to make progress toward these ends, the present study aimed at evaluating the genetic potential for flavonoid production of P. incarnata endophytic bacteria, by using a PCR-based approach." (p. 129)
"A total of 20 endophytic bacterial strains isolated from Passiflora incarnata leaves were used in this study." (p. 129)
"All endophytic strains belonged to the genus Sphingomonas (Table 8.1) and were provided by the Microbial Resources Division of the Research Center for Agriculture, Biology and Chemistry, University of Campinas. They were isolated from passionflower leaf tissue samples collected at the Centroflora Group's agricultural fields located in the city of Botucatu, São Paulo, Brazil." (p. 129)
"In addition, within the specific and intimate" (p. 135)
"136 M. C. Goulart et al. endophyteplant relationship, these microorganisms have evolutionarily acquired the capability to synthesize phytochemicals naturally characteristic of the host (Tan and Zou 2001)." (p. 136)
"Endophytic Sphingomonas used in this study were selected because the flavonol synthase gene was predicted by sequence homology in the genome of some Sphingomonas species." (p. 136)
"detection of flavonoid biosynthesis genes in the P. incarnata-associated endophytes genome confirms the hypothesis that the flavonoid-producing plant species are candidate host of bacteria with potential for flavonoids production." (p. 137)
"Thus, these endophytes represent an alternative biological resource for the sustainable production of plant-associated natural products, such as flavonoids." (p. 137)
Type | Journal Article |
---|---|
Author | Matheus Henrique Reis da Silva |
Author | Luis Gabriel Cueva-Yesquén |
Author | Sinésio Boaventura Júnior |
Author | Vera Lucia Garcia |
Author | Adilson Sartoratto |
Author | Dejanira de Franceschi de Angelis |
Author | Derlene Attili de Angelis |
URL | https://doi.org/10.1007/s00203-020-02001-y |
Volume | 202 |
Issue | 10 |
Pages | 2779-2789 |
Publication | Archives of Microbiology |
ISSN | 1432-072X |
Date | 2020-12-01 |
Journal Abbr | Arch Microbiol |
DOI | 10.1007/s00203-020-02001-y |
Accessed | 11/18/2021, 6:24:24 PM |
Library Catalog | Springer Link |
Language | en |
Abstract | Endophytes are considered one of the most important microbial resources for obtaining biomolecules of therapeutic use. Passiflora incarnata, widely employed by the pharmaceutical industry, shows therapeutic effects on anxiety, nervousness, constipation, dyspepsia and insomnia based on their antioxidant compounds. In this study, from 315 endophytic fungi isolated from P. incarnata leaves, 60 were selected to determinate presence of chemical constituents related with antioxidant activity, based on their production of soluble pigments. The promising fungi were evaluated specifically on their potential to produce phenolic compounds, flavonoids and for antioxidant activity. Five isolates significantly produced flavonoids and phenolic compounds in the ethyl acetate and n-Butanol extracts, also saponins and high antioxidant activity against the DPPH (2.2-diphenyl-1-picrylhydrazyl) free radical. A strain of Aspergillus nidulans var. dentatus (former Emericella dentata) was able to produce tannins as well; its butanolic extract was very similar than the BHT (butylated hydroxytoluene) (94.3% × 94.32%) and Rutin (95.8%) reference substances in the DPPH radical scavenging. Similarly, a Chaetomium strain exhibited 93.6% and 94.7% of antioxidant activity in their ethyl acetate and butanolic fractions, respectively. The chromatographic analysis of the ethyl acetate fraction from the Aspergillus strain revealed the production of orcinol (3.19%). Four-methoxymethylphenol (4.79%), sorbicillin (33.59%) and ergosterol (23.08%) was produced by Trichoderma longibrachiatum and isopropenyl-1,4-dimethyl-1,2,3,3a,4,5,6,7-octahydroazulene were found in two Fusarium oxysporum strains. The phytochemical screening showed that all analyzed fungi were able to produce a kind of secondary metabolite (phenols, flavonoids, tannins and/or saponins). The study shows a great underexplored potential for industrial application of P. incarnata endophytes. |
Short Title | Endophytic fungi from Passiflora incarnata |
Date Added | 11/18/2021, 6:24:24 PM |
Modified | 11/18/2021, 6:24:24 PM |
Extracted Annotations (11/27/2021, 1:17:05 PM)
"Leaves of P. incarnata were randomly sampled from mature, healthy-looking plants grown in the Centroflora Group agricultural fields, Botucatu, São Paulo, Brazil (22°56′18.40"S, 48°34′04.20"W)." (p. 2780)
"Leaves were washed thoroughly in running tap water and then subjected to surface sterilization successively with sterile distilled water for one minute, 70% ethanol for one minute, 3% NaOCl (Sodium hypochlorite) for three minutes, 70% ethanol for 30 s (Souza et al. 2004). Leaf samples were finally washed thrice with sterile distilled water." (p. 2780)
"The disinfection process of leaf surface was clearly effective, as there was no microbial growth on inoculated plates with water from the last wash." (p. 2782)
"growth on inoculated plates individual) were evaluated, from which was obtained 315 endophytic fungi. A total of 60 isolates was selected for analysis of main chemical constituents." (p. 2782)
"Morphological characterization from the five promising endophytes revealed the prevalence of high sporulating ascomycetes in the subphylo Pezizomycotina, being three well-known anamorphic forms (Aspergillus, Fusarium and Trichoderma) and one characteristic sexual phase (Chaetomium)." (p. 2782)
"This involving endophytic microorganisms (Pan et al. 2017). on ability of endophytes to synthesis compounds originally characterized in its host plant, since it determined antioxidant activity in fungi isolated from a plant (P. incarnata) rich in antioxidant compounds (Miroddi et al. 2013)." (p. 2784)
"The present study has evidenced the potential of Passiflora incarnata endophytic fungi as antioxidant compound source." (p. 2787)
"d n-butanol are rich in phenolic compounds, all isolates analyzed are able to produce at least a class of secondary metabolite (phenols, flavonoids, tannins and/or saponins) of pharmaceutical importance." (p. 2787)
"onins) of pharmaceutical importance.uce phenolic compounds, methoxymethylphenol, orcinol and sorbicillin and the strains Chaetomium globosum LMA 1793 and Aspergillus nidulans var. dentatus LMA 1705, specifically, present notable antioxidant activities in vitro, which may be regarded as promising sources of new drugs." (p. 2787)
Type | Journal Article |
---|---|
Author | Alexandra García-Castro |
Author | Astrid Volder |
Author | Hermann Restrepo-Diaz |
Author | Terri W. Starman |
Author | Leonardo Lombardini |
URL | https://journals.ashs.org/jashs/view/journals/jashs/142/1/article-p57.xml |
Volume | 142 |
Issue | 1 |
Pages | 57-64 |
Publication | Journal of the American Society for Horticultural Science |
ISSN | 2327-9788, 0003-1062 |
Date | 2017/01/01 |
Extra | Publisher: American Society for Horticultural Science Section: Journal of the American Society for Horticultural Science |
DOI | 10.21273/JASHS03961-16 |
Accessed | 11/18/2021, 6:25:02 PM |
Library Catalog | journals.ashs.org |
Language | en_US |
Abstract | A greenhouse experiment was conducted to evaluate the effects of water stress on leaf water potential, plant growth, and photosynthesis in purple passionflower (Passiflora incarnata). Twenty 4-L pots with two plants in each pot were arranged in a completely randomized design. Ten pots received a daily irrigation dose of 100% evapotranspiration (ET) throughout the 43-day experiment (control). The other 10 pots were subjected to a reduced irrigation (RI) treatment, which was implemented stepwise to achieve a gradual increase in stress, by irrigating them with 50% ET first, then with 25% ET and, finally, with 10% ET. The last stress phase was followed by a recovery phase in which all treatments received the same amount of water (100% ET). A lower water potential was obtained at 10% ET compared with control plants (−2.51 and −0.98 MPa, respectively). Plants in both 25% and 10% ET irrigation treatments had reduced net CO2 assimilation rates (4.25 and 3.50 μmol·m−2·s−1, respectively) than plants watered with 100% ET (8.53 and 6.77 μmol·m−2·s−1, respectively). Values of maximum carboxylation rate allowed by rubisco (ribulose-1,5-bisphosphate carboxylase/oxygenase), calculated 31 days after treatment (DAT) application (when RI plants were irrigated with 10% ET) decreased by ≈60%, whereas rate of photosynthetic electron transport and triose phosphate use (TPU) were reduced by ≈30% and ≈45% in the stress treatment compared with the control during the 10% ET irrigation period, respectively. Values of water potential and net CO2 assimilation rates in previously stressed plants were not different from the control treatment in the recovery phase, suggesting that P. incarnata plants could adapt well to landscaping situations where periods of extreme drought can be expected. |
Date Added | 11/18/2021, 6:25:02 PM |
Modified | 1/22/2022, 6:45:20 PM |
Extracted Annotations (11/28/2021, 8:10:37 PM)
"Carr (2013) stated that leaf production virtually ceased at leaf water potentials more negative than -2.0 MPa in passionfruit (Passiflora edulis)." (p. 58)
"Likewise, a moderate water stress (soil water potential = -0.075 MPa) diminished leaf area, but increased specific leaf weight (mass per area) in P. ligularis (CasierraPosada and Roa, 2006), suggesting that leaves became denser, likely due to a reduction in cell expansion." (p. 58)
"In addition, Menzel et al. (1986) concluded that moisture stress may be one of the major environmental factors responsible for yield fluctuations, because even mild soil moisture stress conditions (soil water potentials = -0.01 MPa) reduced vine extension, and number of flower buds and open flowers." (p. 58)
"The average greenhouse conditions during this period were the following: temperature of 21.3 ± 0.3C day/17.4 ± 0.4C night, average photosynthetic photon flux density (PPFD) of 395.3mmolm-2s-1, and 51.5% ± 2.9% relative humidity." (p. 58)
"At the beginning of October, 8-month-old, container-grown P. incarnata plants were purchased from a local wholesale nursery. Plants were planted in pairs in 4-L plastic pots, containing a mixture of 3:2 pine bark: native mulch/tree double grind (by volume) as substrate." (p. 58)
"Then, pots were fertilized with each irrigation using water-soluble, 20N-4.4P-16K fertilizer containing micronutrients (Peat-Lite" (p. 58)
"Special; Everris, Dublin, OH) at a dose of 2 gL-1." (p. 58)
"Plants were also sprayed with a rotation of etoxazole (TetraSanÒ; Valent BioSciences Corp., Walnut Creek, CA), abamectin (AvidÒ 0.15 EC; Syngenta, Greensboro, NC), and bifenazate (FloramiteÒ SC; Chemtura Corp., Philadelphia, PA) at a dose of 0.025 gL-1 a.i., 0.085 gL-1 a.i., and 0.07 gL-1 a.i., respectively, to control mites." (p. 58)
"Before the start of treatments, plants were watered and pots were weighed after drainage. After 24 h, pots were weighed again and the amount of the daily consumption of water was calculated to determine the amount of water lost by ET (100% ET). Daily ET ranged between 600 and 917 mLd-1 of water per pot." (p. 58)
"Pots assigned to the CT treatment were irrigated with 100% of their daily requirements for total ET throughout the entire experiment. The RI treatment was implemented stepwise to achieve a gradual water stress. For the first 8 DAT start, pots assigned to the RI treatment were watered with 50% of daily ET. From 9 to 16 DAT, the irrigation volume for the RI pots was lowered to 25% ET and, between 17 and 30 DAT, to 10% ET. In the recovery phase (from 31 to 43 DAT) both RI and CT treatments were irrigated with the same amount of water (100% ET)." (p. 58)
"At 30 DAT, CT plants had a greater shoot length than RI plants (Fig. 2A)." (p. 59)
"Differences between treatments were obtained at the end of the 25% ET phase (16 DAT), being the RGR higher in control plants. Then, RI plants continued showing a lower RGR during the 10% ET and recovery phases in spite of the fact that in the recovery phase plants had been watered with 100% ET for 12 d (between 31 and 43 DAT) (Fig. 2B)." (p. 59)
"Leaf net photosynthesis rates were lower in RI plants than in CT plants from 10 to 30 DAT (Fig. 3). At 30 DAT, RI plants showed a photosynthesis rate of 2.5mmolm-2s-1 compared with 8.5mmolm-2s-1 in CT plant." (p. 60)
"In our experiment, carboxylation efficiency was reduced by 50% in RI plants after they were watered for 14 d with 10% ET (30 DAT) (Table 1), suggesting a limitation of the carboxylation activity of rubisco (Silva et al., 2013)." (p. 60)
"n this experiment, low stress effects (Farooq et al., 2009). Ire negativeypd (<-1.5 MPa) (Fig. 5). Likewise, an exponential decline of photosynthesis rate was observed when plants of P. incarnata showed aypd <-1.0 MPa (Fig. 6), indicating that leaf water potential provides an integrated measurement of soil water status as it is sensed by the plants (Lima et al., 2002)." (p. 61)
"Photosynthetic light response curves did not reveal differences between treatments after RI were irrigated with 50% ET for 8 d (Fig. 7A). However, the curves showed clear differences between irrigation regimes after RI plants were irrigated with" (p. 61)
"25% ET and 10% ET (Fig. 7B and C, respectively)." (p. 61)
"Values of Amax were greater in well-watered pots than in drought stress pots (Table 2). After 8 d of irrigation with 50% ET and 8 d with 25% ET, Amax of RI plants was 3.74 mmolm-2s-1, compared with 7.67mmolm-2s-1 in CT plants (Table 2). After an additional 14 d of receiving 10% ET, Amax of RI plans dropped to 1.39mmolm-2s-1 compared with 5.89 mmolm-2s-1 in CT plants." (p. 61)
"In summary, stomatal mechanisms played an important role in the response of P. incarnata to water deficit. This study also revealed that nonstomatal factors such as rubisco activity, J and TPU may be negatively affected by periods of intense drought. In addition, an exponential decline of photosynthesis rate was observed when plants of P. incarnata showed aypd more negative than -1.0 MPa; however; leaf gas exchange properties showed a strong recovery when plants were watered at 100% ET after a period of RI." (p. 63)
"Based on these results, P. incarnata can be considered moderately tolerant to short periods of water deficit and could adapt well to landscaping situations where periods of extreme drought can be expected." (p. 63)
Type | Journal Article |
---|---|
Author | Luciana Domiciano Silva Rosado |
Author | João Paulo Gava Cremasco |
Author | Carlos Eduardo Magalhães dos Santos |
Author | Claudio Horst Bruckner |
Author | Maria Helena Menezes Cordeiro |
Author | Leandro Luiz Borges |
URL | http://www.scielo.br/j/rbf/a/HdxSngFf8Px73L9qtH4C5jL/abstract/?lang=en |
Volume | 42 |
Publication | Revista Brasileira de Fruticultura |
ISSN | 0100-2945, 1806-9967 |
Date | 2020-07-15 |
Extra | 00000 Publisher: Sociedade Brasileira de Fruticultura |
Journal Abbr | Rev. Bras. Frutic. |
DOI | 10.1590/0100-29452020002 |
Accessed | 11/27/2021, 9:48:07 PM |
Library Catalog | SciELO |
Language | en |
Abstract | Abstract The seminiferous propagation of Sour Passion Fruit (Passiflora edulis Sims) is the main kind of multiplication due to the ease formation of seedlings. However, the reduced number of productive and homogeneous cultivars reflects the need for genetic breeding. The objective of this study was to assess the maternal and reciprocal effects in vigor and germination of Sour Passion Fruit seeds. The experiment was conducted in a completely randomized design in the factorial scheme, with two structure (hybrid and reciprocal) and ten crosses with four replicates (50 seeds) in trays containing inert sand in germination chamber. Before sowing, it was obtained the weight of 100 seeds, and at 28 days germination percentage, emergence speed index, total seedlings length, shoot length and main root length, number of normal seedlings and dry mass per seedlings were evaluated. The reciprocal effects tell us which genotype is most promising when used as the female or male parent for the trait studied. It can be inferred that there is maternal effect influencing the weight of 100 seeds, emergence, emergence speed index and the number of normal seedlings. There was influence of the parent on the expression of traits in seeds of Sour Passion Fruit. It is important to define the paternal and maternal parent to obtain seeds with high germination potential. |
Date Added | 11/27/2021, 9:48:07 PM |
Modified | 11/27/2021, 9:48:08 PM |
Extracted Annotations (11/27/2021, 10:02:48 PM)
"rosses, withe of parents to be hybridized plays an important role in breeding programs to obtain sufficiently heterotic hybrids and consequently, superior segregants (VIANA et al., 2007). Another factor to be considered is the direction of the crossing, i.e. which plant will be established as a pollen donor and which will be used as the pollen recipient." (p. 2)
", evidencing a significant parental effect of hybrids. genetic improvement of SPF, the structuring of crosses to obtain seeds and the genetic influence in the formation of seedlings with adequate traits, such as germination, emergence, and vigor." (p. 2)
"Controlled hybridizations Viçosa, Minas Gerais, Brazil. types of UFV Sour Passion Fruit Breeding Program, commercial varieties from Empresa Brasileira de Pesquisa Agropecuária (Embrapa) and Viveiro Flora Brasil (FB)." (p. 2)
"The selected yield, fruit quality, and disease tolerance. plastic pots of 40 L in a greenhouse, with substrate in the proportion 3:1:1 (soil: sand: manure) and acidity correction (dolomitic limestone) and phosphatization (single superphosphate). During the development of plants, pruning, irrigation, complementary fertilization and management were performed to obtain the fruits." (p. 2)
"Hybridizations were carried out protecting the flowers destined to provide and receive the pollen, in the morning, before the anthesis, with a bag of paraffin wax paper." (p. 2)
"The eight traits evaluated on seeds and seedlings were: weight of 100 seeds (WS) in grams (g), emergence (EME) in percentage (%), emergence speed index (ESI); total length of seedlings (TLS), length of main root (LR) and shoot (LS) in centimeters (cm); number of normal seedlings (NNS) and dry mass per seedling (DMS) in milligrams (mg)." (p. 3)
"The seeds were extracted from the fruits by opening through a cross-section of the fruit, afterward, the pulp, composed of juice and seeds was wrapped in a fine-mesh sieve and by the friction of the pulp with the aid of 10% lime, the aryl was removed from the seeds." (p. 3)
"Each plot consisted of 50 seeds, replicates (Table 1). stic trays containing washed and inert sand, at 2.0 cm depth. After sowing, the trays were placed in germination chambers, with controlled temperature and luminosity, 8 hours at 30 ºC with light, and 16 hours at 20 ºC in the dark. Irrigation was performed daily with distilled water." (p. 3)
"The results obtained demonstrate the genetic variability in the crosses for the emergence and vigor traits. In general, the hybrids and reciprocal showed similar values for the traits under study." (p. 5)
"As verified, the study points to the necessity to determine which parent will be used as a pollen donor and pollen recipient from another parent in the pollination." (p. 5)
"and pollen recipient from another parent in the pollination. and vigor traits within each crossing indicate that there is interference related to the cytoplasmic effect." (p. 5)
"The endosperm that is the reserve tissue that feeds the embryo is formed by the fusion among a male gamete and two polar cores of the female gametophyte. After fusion these three cells, a triploid nucleus gave rise having in its genome two copies of the maternal alleles and a copy of the paternal allele. Therefore, the constitution of this tissue is predominantly governed by the female parent (WU et al., 2002)." (p. 5)
"antly governed by it can be inferred that there is a cytoplasmic effect of the female parent influencing the traits among the structures at the crossing, and it is necessary to direct the crossing choosing the female parent that will allow the greater weight of the seeds." (p. 5)
"of the seeds.n in the weight of 100 seeds indicates that the crossover (parents) and the crossover direction interferes with this trait being this difference related to the maternal inheritance." (p. 5)
"reciprocal effect ont evaluations of the reciprocal effect confirm the existence of difference when a plant is used as the male or female parent because there is the presence of cytoplasmic effect and nuclear genes of the female parent in the evaluated traits." (p. 6)
"These results show the importance of the choice of female and male parents to perform crosses and obtain hybrid seeds of SPF with high germinative potential. As reported by Gomes et al. (2000) the correct choice of maternal and paternal parents is important in the formation of hybrid maize seeds with high germinative power." (p. 6)
"al showeds evaluated show interaction between crosses and structure such as weight of 100 seeds, emergence, emergence speed index and the number of normal seedlings, despite the influence of maternal effect on the expression of these traits in seeds of Sour Passion Fruit." (p. 7)
"Therefore, it is traits in seeds of Sour Passion Fruit. ernal and maternal genitor in order to obtain seeds with high germination potential in Sour Passion Fruit." (p. 7)
Type | Journal Article |
---|---|
Author | Christopher M. McGuire |
URL | https://journals.ashs.org/hortsci/view/journals/hortsci/33/2/article-p240.xml |
Volume | 33 |
Issue | 2 |
Pages | 240-241 |
Publication | HortScience |
ISSN | 0018-5345, 2327-9834 |
Date | 1998/04/01 |
Extra | Publisher: American Society for Horticultural Science Section: HortScience |
DOI | 10.21273/HORTSCI.33.2.240 |
Accessed | 11/18/2021, 6:23:16 PM |
Library Catalog | journals.ashs.org |
Language | en_US |
Abstract | Passiflora incarnata L., a perennial vine native to southeastern North America, bears fruit containing an edible juice. I observed the growth, flowering, fruit yield, and fruit traits of P. incarnata plants grown in the field for one season in Ithaca, N.Y. Plants flowered throughout the summer and were pollinated by carpenter bees, but fruit set was low without additional hand-pollination. Fruits set before mid-August matured in 52 to 113 days, but fruits set after mid-August usually failed to mature. Following hand-pollination of some flowers, plants matured 0 to 14 fruits, and yield of edible juice was 5 to 10 mL per fruit. Vegetative growth, plant architecture, number of flowers produced, number of fruits matured, days from flower opening to fruit maturity, fruit size, the proportion of fruits filled with juice and seeds, and the size of juice-containing arils all varied greatly among plants. Part of this variation was probably genetic. |
Date Added | 11/18/2021, 6:23:16 PM |
Modified | 11/18/2021, 6:23:16 PM |
In 1996, 43 live P. incarnata plants were obtained from commercial nurseries, and 73 seedlings were raised from seed saved from the author's previous plantings or obtained from collections made at Pine Mountain, Ga.; Muscogee Co., Ga; and Auburn Univ. Ala.
Seeds were sown in the greenhouse on 30 Mar. after soaking for 24 h in water to enhance germination; seedlings were maintained in 1-L pots of 4 peat: 1 perlite (by volume).
Type | Journal Article |
---|---|
Author | G. M. Mendiondo |
Author | M. T. Amela García |
URL | https://doi.org/10.1080/11263500902722709 |
Volume | 143 |
Issue | 2 |
Pages | 369-376 |
Publication | Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology |
ISSN | 1126-3504 |
Date | July 1, 2009 |
Extra | Publisher: Taylor & Francis _eprint: https://doi.org/10.1080/11263500902722709 |
DOI | 10.1080/11263500902722709 |
Accessed | 11/18/2021, 2:22:36 PM |
Library Catalog | Taylor and Francis+NEJM |
Abstract | This work evaluates the influence of storage and scarification in the germination of Passiflora caerulea L., in order to acquire the necessary knowledge to cultivate this economically important species. Seeds stored one month under different conditions (no storage, fermentation, desiccation) were submitted to various pre‐treatments (aril removal, mechanical and chemical scarification or combinations of these). Emergence was recorded periodically for 11 months in a greenhouse. Germination time, germination percentage and germination speed were calculated. Histochemical tests were applied to seeds maintained under the three storage conditions, for observing possible changes in the integument and storage tissue. Viability was maintained at least for the storage period tested, as germination occurred after that time. Because the seeds stored under desiccation germinated, the species is orthodox. Chemical scarification prevented germination in most cases. Although germination levels were low, they were higher in stored seeds (fermented and desiccated) than in fresh ones. Fermented seeds (which exhibited no storage tissue and less lignin in the integument) devoid of the aril germinated earlier, faster and in greater quantity. The type of dormancy of this species is discussed. |
Date Added | 11/18/2021, 2:22:36 PM |
Modified | 11/18/2021, 2:22:36 PM |
Extracted Annotations (12/15/2021, 4:30:46 PM)
"Eighty-nine physiologically ripe fruits were collected from 18 healthy plants that naturally grow on the campus of the Facultad de Ciencias Exactas y Naturales of Universidad de Buenos Aires, Argentina" (p. 371)
"The homogeneous lot of seeds was divided in three sets: the first one was sown immediately (fresh, no storage), the remaining two were stored for one month under different conditions (fermentation in air-tight containers in a refrigerator and desiccation at room temperature). Before sowing, all seeds were treated as explained in Table I, to simulate the corresponding possible natural outcomes in this ornithocorous species (Mendiondo & Amela García 2006)." (p. 371)
"Mechanical scarification was performed with sandpaper for wood and chemical scarification was" (p. 371)
"carried out with pure hydrochloric acid." (p. 372)
"Water was heated to 36 °C." (p. 372)
"The seeds were sown in plastic divided trays filled with soil:perlite (3:1) with one seed per cell. The treatment distribution was randomly assigned. The trays were placed inside a greenhouse, under natural photoperiod, where ambient temperature and relative humidity (recorded with a digital thermohygrometer), varied from 12 to 42 °C and 43 to 99%, respectively." (p. 372)
"The germination percentage was (1) low with the aril (A) under all storage conditions, (2) moderate without the aril (B), and with the aril and mechanical scarification (C) (except for fresh seeds in B, in which it was low), (3) null without the aril plus chemical scarification for 10 min (D), without the aril plus chemical scarification plus hot water (E), and without the aril plus mechanical scarification plus chemical scarification + hot water (F) (except for fermentation, in which it was low) (Table II)." (p. 372)
"The highest germination percentage was obtained with the seeds after fermentation and without the aril (Table II)." (p. 373)
"The earliest germination starting time (T0) occurred 15 days after sowing in fermented seeds without the aril (Table II), while the latest occurred 92 days after sowing in fresh seeds without the aril." (p. 373)
"All the cumulative germination curves showed an imbibition phase of at least two months followed by a gradual increase until a steady speed was reached (Figure 1). The imbibition phase was delayed by one month for treatments A and B in fresh seeds. The increase lasted one or two months, except in fresh seeds without the aril and mechanical scarification, in which it was extended for eight months." (p. 373)
"Nevertheless, nearly null germination was obtained by chemical scarification, which may be due to" (p. 374)
"failure in choosing the appropriate acid concentration." (p. 375)
"Thus, acidity seems to be a more important factor than the time spent inside the digestive tract." (p. 375)
"Considering that germination was obtained from dried seeds, it seems that the diaspores of P. caerulea are orthodox, a condition also referred for P. edulis, P. ligularis, P. maliformis and P. quadrangularis (ISTA 1985)." (p. 375)
"It is thus apparent that in stored seeds mechanical scarification would not be necessary." (p. 375)
"The fact that the differences were not so great between fresh and stored seeds after mechanical scarification (treatment C) would constitute an additional indication that the restriction is in the seed coat of P. caerulea." (p. 375)
"Fermentation, then, seems to make the seed coat more permeable, by degradation of certain cell walls substances (depending on the trophic characteristics of the attacking fungi), thus allowing imbibition and, consequently, germination." (p. 376)
Type | Journal Article |
---|---|
Author | Cristiano Hossel |
Author | Jéssica Scalet Alves de Oliveira Hossel |
Author | A. W. Júnior |
Author | Alexandre Luis Alegretti |
Author | Adriana Dallago |
Volume | 11 |
Issue | 1 |
Pages | 93-98 |
Publication | Pesquisa Aplicada & Agrotecnologia |
Date | 2018 |
Extra | 00000 |
DOI | 10.5935/PAeT.V11.N3.09 |
Library Catalog | Semantic Scholar |
Abstract | The objective was to evaluate the germination of Passiflora caerulea under different temperatures and GA3 concentrations and speed of emergence index (GSI) and the work was carried out plant physiology laboratory from UTFPR, Campus Dois Vizinhos, Parana State, Brazil. The objective was to evaluate the germination of Passiflora caerulea under different temperatures and GA3 concentrations. The work was carried out plant physiology laboratory from UTFPR, Campus Dois Vizinhos, Parana State, Brazil. The experiment was a completely randomized design with factorial 4 x 3 (AG3 concentration x temperature) with 4 replications, of 100 seeds by plot. The seeds, after extracted, it was separated in 4 groups according to AG3 concentration (without application; 0; 100 and 200 mg L-1), where it was soaked during 30 minutes. The seeds were sowed between Germitest® in Gerbox®. The Gerbox® with seeds were put in BODs temperatures with three (20°C, 25°C and 30°C) without photoperiod. Sixty days after sowed the germination (%) and speed of emergence index (GSI) were evaluated. The P. caerulea seeds must be kept in temperature to 30°C without treatment or it submit in AG3 solution in the concentration of 100 or 200 mg L-1 during 30 minutes. |
Date Added | 12/17/2021, 2:13:57 PM |
Modified | 12/17/2021, 2:15:19 PM |
Ripe P. caerulea fruits were collected from the commercial orchard in Bento Golçalves – RS, when these presented with a yellowish color. You fruits were cut in half, extracting your seeds manually, where they were placed in a fine mesh sieve. Through friction in this sieve, made the removal of the aril, with aid of quicklime. After removing the aryl, the seeds were washed in running water and disposed of on paper towels, where they remained for 24 hours in the shade to remove excess moisture.
Then the seeds were separated in four batches, according to the concentration of GA 3 to be applied (no application, 0, 100 and 200 mg L -1 ) and then soaked for 30 minutes. elapsed such period, the seeds were placed between Germitest® paper in Gerbox® boxes with lid (FERREIRA et al., 2005).
The seeds inside the Gerbox® boxes were conducted to BODs, according to the temperature stipulated (20°C, 25°C and 30°C) and without photoperiod.
It is believed that the use of water (0 mg L -1 of GA 3 ) in the imbibition of the seeds has been harmful to the germination process since had the lowest results in both variables (Table 1).
The seeds of blue passion fruit ( P. caerulea ) should be kept at a temperature of 30°C without any treatment or with the use of a solution with 100 or 200 mg L -1 of GA 3 for 30 minutes.
Type | Journal Article |
---|---|
Author | Mildred Mayorga |
Author | Gerhard Fischer |
Author | Luz Marina Melgarejo |
Author | Alfonso Parra-Coronado |
URL | https://ojs.openagrar.de/index.php/JABFQ/article/view/14709 |
Rights | Creative Commons Attribution 4.0 International |
Pages | 66-75 Pages |
Publication | Journal of Applied Botany and Food Quality |
Date | 2020-04-03 |
Extra | 00000 Artwork Size: 66-75 Pages Publisher: Journal of Applied Botany and Food Quality |
DOI | 10.5073/JABFQ.2020.093.009 |
Accessed | 11/27/2021, 10:29:47 PM |
Library Catalog | DOI.org (Datacite) |
Language | en |
Abstract | The curuba (Passiflora tripartita var. mollissima) is an important Andean fruit in bioprospecting industries because of its pleasant taste and aroma, antioxidant potential and sedative action. The objective of this study was to evaluate the development of curuba plants and the physicochemical characteristics of fruits under two environmental tropical altitudinal conditions. Crops were established in a low zone (2,006 m.a.s.l.) and a high zone (2,498 m.a.s.l.) in the municipality of Pasca (Cundinamarca, Colombia). Phenological monitoring was carried out in the principal growth stages. The weight, length, diameter, color, firmness, pH, total soluble solids, total titratable acidity and organic acid content were measured in the fruits. Climatic parameters were monitored during the crop cycle, and base temperatures and thermal times were estimated. The temperature and photosynthetically active radiation (PAR) were the climatic factors that had the greatest effect on plant development. The base temperatures of growth of the primary branches, floral buds and fruits were 4.3 °C, 3.1 °C and 0.01 °C, respectively. In the lower zone, the plants accumulated more growing degree days than in the upper zone. The fruits in the upper zone presented a higher weight, total titratable acidity and ascorbic acid content. The plants presented a marked response to the differential agroecological conditions of the two sites. |
Date Added | 11/27/2021, 10:29:47 PM |
Modified | 1/22/2022, 7:13:43 PM |
<h2>SeriesInformation</h2> Journal of Applied Botany and Food Quality, Vol. 93 (2020): Journal of Applied Botany and Food Quality
Type | Journal Article |
---|---|
Author | Fabiana Antognoni |
Author | Suiping Zheng |
Author | Cristina Pagnucco |
Author | Rita Baraldi |
Author | Ferruccio Poli |
Author | Stefania Biondi |
URL | https://www.sciencedirect.com/science/article/pii/S0367326X07000986 |
Volume | 78 |
Issue | 5 |
Pages | 345-352 |
Publication | Fitoterapia |
ISSN | 0367-326X |
Date | July 1, 2007 |
Journal Abbr | Fitoterapia |
DOI | 10.1016/j.fitote.2007.02.001 |
Accessed | 11/18/2021, 5:55:42 PM |
Library Catalog | ScienceDirect |
Language | en |
Abstract | Callus cultures from several species of Passiflora were initiated in vitro, and their capacity to produce four glycosyl flavonoids (orientin, isoorientin, vitexin, isovitexin) was analysed. The aim of the present work was to examine the possible role of UV-B irradiation and elicitation with methyl jasmonate (MJ) on the production of these compounds in callus cultures. All the species tested (P. incarnata, P. quadrangularis, P. edulis) formed friable callus from leaf explants after 4 weeks on medium supplemented with kinetin and 2,4-dichlorophenoxyacetic acid. Among them, P. quadrangularis turned out to have a faster growth rate and a more friable texture, and was therefore chosen for experiments with elicitors. In callus cultures only small amounts of isoorientin were found, while the concentration of the other flavonoids was below the detection limit. UV-B irradiation of calluses was able to increase the production of all four glycosyl flavonoids. After a 7-day exposure of cultures to UV-B light, the production of isoorientin reached concentrations similar to those found in fresh leaves from glasshouse-grown plants. Elicitation with methyl jasmonate also enhanced orientin, vitexin and isovitexin concentrations, even though the stimulation was about 6-fold weaker for orientin and vitexin and about 40-fold for isovitexin, than that exerted by UV-B treatment. Callus cultures treated with the UV-B dose which most enhanced flavonoid production showed a higher antioxidant activity compared to untreated calluses, with an increase ranging from 28% to 76%. Results show that the secondary metabolite biosynthetic capacity of Passiflora tissue cultures can be enhanced by appropriate forms of elicitation. |
Date Added | 11/18/2021, 5:55:42 PM |
Modified | 11/18/2021, 5:55:42 PM |
Extracted Annotations (11/29/2021, 12:26:05 AM)
"Passiflora edulis, P. quadrangularis and P. incarnata (Passifloraceae) leaves collected at a pre-flowering stage from plants grown in a glasshouse of the Botanical Garden of the University of Bologna" (p. 346)
"Leaves were surface sterilised by a brief immersion in 70% EtOH followed by 10 min in a commercial bleach solution (5% active chlorine) containing a few drops of Tween 80, and then rinsed three times with sterile distilled water." (p. 346)
"Leaf explants (60 explants for each species, size approx. 0.5×1 cm) were excised either from the lamina or from the midrib. These were placed in 9-cm Petri dishes containing 25 ml MS basal medium [17] supplemented with 3% sucrose and solidified with 2.5% Phytagel (Sigma-Aldrich s.r.l, Milano, Italy)." (p. 346)
"Various combinations of 2,4-dichlorophenoxyacetic acid (2,4-D, 0.25 to 3.0 mg/l), kinetin (0 to 2.0 mg/l) and benzylaminopurine (BAP, 0 to 2.0 mg/l) in the culture medium were tested (Sigma-Aldrich, Milano). Cultures were kept in the light (50μmol m−2 s−1) with a 16/8 h light/ dark photoperiod at 22±1 °C." (p. 346)
"radiation was provided continuously. All cultures also received white light as UV1, UV2, UV3, respectively) were obtained by placing dishes at different vertical distances from the lamps [18]. Cultures were exposed to the three UV-B doses for 2, 4 and 7 days." (p. 347)
"P. incarnata, P. edulis and P. quadrangularis were amenable to callus formation from leaf explants, in particular when these consisted mainly of the midrib (Table 1)." (p. 348)
"After 4 weeks from the start of culture on medium supplemented when these consisted mainly of the midrib (Table 1).ve the best results, 80-90% of the midrib explants from all species had formed callus, while a percentage ranging from 32 to 45% of callus induction was observed in the case of lamina explants (Table 1)." (p. 348)
"Subsequently, growth of the callus exhibited ca 3- to 4-fold increases in 4 weeks, thereafter reaching the stationary phase (Fig. 1)." (p. 348)
"Because of its faster growth and friable texture, P. quadrangularis was chosen for experiments with elicitors." (p. 348)
Type | Journal Article |
---|---|
Author | Valdir Zucareli |
Author | Luma Alana Vieira Henrique |
Author | Elizabeth Orika Ono |
URL | http://www.scielo.br/j/jss/a/Rrn3yzsJ3k8CNP4msqtgSFL/?stop=next&lang=en&format=html |
Volume | 37 |
Pages | 162-167 |
Publication | Journal of Seed Science |
ISSN | 2317-1537, 2317-1545 |
Date | 2015-Apr-Jun |
Extra | 00000 Publisher: ABRATES - Associação Brasileira de Tecnologia de Sementes |
Journal Abbr | J. Seed Sci. |
DOI | 10.1590/2317-1545v37n2147082 |
Accessed | 11/18/2021, 2:33:53 PM |
Library Catalog | SciELO |
Language | en |
Abstract | Abstract: The study aimed to assess the influence of temperature and light on germination of Passiflora incarnata L seeds. The treatments consisted of five temperature conditions (25, 30, 35, 20-30 and 30-20 °C) and two light conditions (constant light and constant darkness). The experimental design was completely randomized in a 2 x 5 factorial arrangement (light x temperature). The seeds were kept in a germination chamber during the period of 30 days. The germinated seeds were counted daily. At the end of the experiment, the percentage of seed germination (PSG), germination speed index (GSI), the germination rate (GR) and relative frequency of germination (RFG) were calculated. The data obtained were subjected to analysis of variance and means were compared by Tukey test at 5% probability. The relative frequency of germination was represented as graphs. It was observed that light has an inhibitory effect on seed germination. The constant temperature of 35 °C and the alternating temperatures of 30/20 °C promoted a higher germination seed index for Passiflora incarnata. |
Date Added | 11/18/2021, 2:33:53 PM |
Modified | 3/5/2022, 5:59:59 PM |
Extracted Annotations (11/28/2021, 11:57:43 PM)
"The passion fruit tree can be propagated by means of seeds or asexually by means of grafting, cuttings or tissue culture in vitro, and the propagation by seeds is the most used (Pantano, 2007)." (p. 163)
"vesos et al. (2004) have studied the in vitro germination of Passiflora nitida and have not found a significant effect of light/dark on seed germination." (p. 163)
"Santos et al. (1999) have studied the germination of Passiflora edulis f. flavicarpa seeds under constant temperature (25 °C) and alternating temperatures (20-30 °C) and have indicated the temperature alternation as the most appropriate for the species germination." (p. 163)
"Zucareli et al. (2003) have assessed the germination of Passiflora alata seeds and concluded that, regardless of the treatment used, alternating temperatures between 20 °C and 30 °C has improved the germination." (p. 163)
"In a study with seeds of Passiflora cincinnata, Zucareli et al. (2009) have concluded that the alternating temperature (20-30 °C) is more suitable for germination." (p. 163)
"The seeds used in the experiment were donated by the company Grupo Centroflora, Botucatu, SP, Brazil." (p. 163)
"The treatments consisted of five temperature conditions (25 °C, 30 °C, 35 °C, 20-30° C and 30-20 °C) and two light conditions (constant light and constant dark). For alternating temperature, the periods of 16 and 8 h were used and, to simulate the photoperiod, transparent acrylic boxes were used (constant light) and black coloring (constant darkness)." (p. 163)
"The Passiflora incarnata seeds were treated with fungicide Captan® (2 g.kg-1). After treatment, the seeds were placed in acrylic boxes on two sheets of blotting paper previously moistened with distilled water." (p. 163)
"Duarte Filho et al. (2000) have assessed the germination of Passiflora gibertii seeds at constant temperatures 20 °C, 25 °C and 30 °C and alternating temperatures 30-25 °C, 30-20 °C and 25-20 °C, all under constant white light and 163 have found that temperature influences the percentage of emission of primary roots and normal and abnormal seedlings, and the alternating temperature (30-20 °C) has provided greater uniformity of germination and constant temperatures have provided lower averages for the variables germination percentage and normal seedlings percentage." (p. 163)
"In this one it is possible to see that the seeds subjected to the light" (p. 164)
"In Figure 1, it is possible to see that the germination started on the fifth day after the experiment deployment for the seeds subjected to temperatures of 30 °C, 35 °C, 30/20 °C and 20/30 °C and that the seeds subjected to temperature 25 °C germination only started from the seventh day." (p. 164)
"It is also observed that the highest percentage of germination occurred in the treatment using the constant temperature of 35 °C, in which case the germination stabilization occurred on the 13th day after the experiment deployment." (p. 164)
"absence condition had the highest averages for the variable germination percentage, regardless of the temperature used." (p. 164)
"The treatment that had higher germination values was the one of 35 °C (59%), which did not differ from the treatment using alternating temperatures of 30/20 °C (48%)." (p. 164)
"For the germination rate (GR) variable, it can be observed (Table 1) that there was a difference only for light and dark." (p. 165)
"It is also observed that despite the seeds being subjected to alternating temperatures 20-30 °C having a higher average germination rate, there was no difference between treatments, regardless of the lighting conditions." (p. 165)
"It was found that seeds subject to constant temperature of 35 °C had higher GSI, differing from the other treatments." (p. 165)
"It is noteworthy that the temperature of 35 °C was the one that provided the highest germination rate concentrated in a shorter period of time, which results in a more uniform emergence and less exposure of the seeds to pathogens, as mentioned by Carvalho and Nakagawa (2000)." (p. 165)
"From the results obtained in this study it can be concluded that light has an inhibitory effect on the germination of Passiflora incarnata seeds and that the temperature influences their germination, and the constant temperature of 35 °C and the alternating temperatures of 30/20 °C promoted the highest germination rates." (p. 166)
Type | Journal Article |
---|---|
Author | Víctor Fuentes Fiallo |
Author | Ciro M. Lemes Hernández |
Author | Carlos A. Rodríguez Ferradá |
Author | Pedro Sánchez Pérez |
Author | Gladys Méndez |
URL | http://scielo.sld.cu/scielo.php?script=sci_abstract&pid=S1028-47962000000300010&lng=es&nrm=iso&tlng=es |
Volume | 5 |
Issue | 3 |
Pages | 118-122 |
Publication | Revista Cubana de Plantas Medicinales |
ISSN | 1028-4796 |
Date | 12/2000 |
Extra | 00000 Publisher: 1999, Editorial Ciencias Médicas |
Accessed | 11/19/2021, 5:18:01 PM |
Library Catalog | SciELO |
Date Added | 11/19/2021, 5:18:01 PM |
Modified | 11/19/2021, 5:18:01 PM |
When conditions are favorable, the species can of becoming aggressive and invading other nearby crops.
Once it has been established, it is difficult to remove it as can sprout again from root fragments that can be left on the ground.
Between ten December and the first of March, the species practically disappears and remains, with very little or no foliage, only in its roots.
The species can be propagated by seeds, but rarely bears fruit under Cuban conditions, possibly by the monoclonal origin of the plant material of the species existing in the country, or due to the absence of the pollinating agent specific. (1 000 seeds have an approximate weight of 35 g).
When multiplication is done by seeds, germination occurs between 10 and 20 d later to sowing. About 2 months later, when the seedlings are about 15 cm tall, transplantation can be performed at a distance of 90 x 20 cm.
Asexual multiplication, which is what is used to the establishment of plantations in Cuba, can made by means of stakes of stems fitted with a heel, or simply, with roots, which is the most appropriate (figure 2).
The roots that will serve as propagation material, a Once extracted, and without being cut, they can be stored in a shady place, covered by a damp cloth. In these conditions can remain up to 14 d without losing their sprouting capacity.
At the time of being planted, the stakes shall be cut to a length of 20 cm, and shall be completely covered with soil at the time of planting.
The date for planting is between March and April. March is the optimal one, since it enables the realization of greater number of harvests.
The planting will be done directly, it will be used as propagules root cuttings 20 cm long, plants at run furrow. The grooves will be spaced 90 cm apart, and they will require 55,556 root cuttings / ha.
During the first 2 months after the establishment plantation, special care will be taken in the elimination of weeds, until the plantation "closes". Once this occurs, the appearance of weeds is almost nil.
The first harvest is carried out 3 months after establishment. gives the plantation. The remaining 2, at 2-month intervals. This gives a 7-month cycle for cultivation, although in particular tial irrigation conditions, the authors have been able to obtain some foliage (to carry out a dynamic of accumulation lation of alkaloids and flavonoids of the species) all months of the year except for January and February.
Under the conditions described it is possible to obtain up to 3 t / ha of fresh foliage in 3 harvests.
Type | Journal Article |
---|---|
Author | Prabukumar Seetharaman |
Author | Sathishkumar Gnanasekar |
Author | Rajkuberan Chandrasekaran |
Author | Gobinath Chandrakasan |
Author | Murugan Kadarkarai |
Author | Sivaramakrishnan Sivaperumal |
URL | https://doi.org/10.1007/s13213-017-1263-5 |
Volume | 67 |
Issue | 4 |
Pages | 321-331 |
Publication | Annals of Microbiology |
ISSN | 1869-2044 |
Date | 2017-04-01 |
Extra | 00034 |
Journal Abbr | Ann Microbiol |
DOI | 10.1007/s13213-017-1263-5 |
Accessed | 11/27/2021, 1:23:25 PM |
Library Catalog | Springer Link |
Language | en |
Abstract | Chrysin (5,7-dihydroxy flavone, ChR) is a flavone of plant origin, possessing numerous biomedical properties, such as antimicrobial, anti-inflammatory, anti-diabetic, anxiolytic, hepatoprotective, anti-aging and anticonvulsant activities. In this study, chrysin-producing fungal endophytes (A. alternata KT380662, C. capsici KT373967, and C. taiwanense PI-3 KX580307) were isolated from the leaves of Passiflora incarnata L. and characterised via morphology and internal transcribed spacer (ITS) sequences. Thin layer chromatography and high-performance liquid chromatography profiles of fungal extracts showed Rf values and retention times that closely match those of standard chrysin (ChR). Further, the production of fungal chrysin (FChR) was confirmed through UV-vis spectroscopy, FT-IR, LC-ESI-MS, and 1H1 NMR analysis. Among the isolated strains, A. alternata KT380662 was identified as having a high-level of ChR production, with rates measuring approximately 846 mg L−1. On the other hand, in vitro anticancer and radical scavenging studies proved that FChR has significant cytotoxic activity against human liver carcinoma cells (HepG2). These results clearly imply that the isolated A. alternata KT380662 could serve as an alternative source for the commercial production of ChR, which holds anticancer and radical scavenging activities, and the fungal-derived ChR can be used in chemotherapy or in prodrug development. |
Date Added | 11/27/2021, 1:23:25 PM |
Modified | 11/27/2021, 1:23:26 PM |
Extracted Annotations (11/28/2021, 7:57:20 PM)
"Healthy symptomless fresh leaves were collected from healthy looking perennial vines of P. incarnata L. passiflora located in front of the insect molecular biology laboratory on the Bharathidasan University campus in Tiruchirappalli, Tamilnadu, India." (p. 322)
"Briefly, the leaves were immersed in 75% ethanol for 1 min and 5% NaOCl for 5 min. The plant materials were then sluiced six times with sterilised distilled water to remove any surplus surface chemicals, and excess wetness was removed using sterile filter paper to fully dry the leaves." (p. 322)
"In this study, the ChR-producing endophytic fungal strains A. alternata (KT380662), C. capsici (KT373967), and C. taiwanense PI-3 (KX580307) were isolated from P. incarnata leaves." (p. 327)
"Based on preliminary screening, A. alternata (KT380662) was considered as the strain with potential maximum yield and thus studied further." (p. 327)
"This clearly demonstrates that the endophytic fungus PI-1 is an effective source for the commercial production of chrysin." (p. 327)
"Thus, based on the results, we concluded that we have successfully isolated from the P. incaranata plant an endophytic fungus, A. alternata KT380662, that produces chrysin at a concentration of 846 mg/g." (p. 328)
"As a result, the ChR production rate of 846 mg/g was greater than that of previously explored bioresources of plant, honey, and mushroom origin." (p. 330)
Type | Journal Article |
---|---|
Author | Stephanie A. Foré |
Author | Timothy P. Spira |
URL | https://www.jstor.org/stable/3088703 |
Volume | 129 |
Issue | 4 |
Pages | 326-330 |
Publication | The Journal of the Torrey Botanical Society |
ISSN | 1095-5674 |
Date | 2002 |
Extra | Publisher: Torrey Botanical Society |
DOI | 10.2307/3088703 |
Accessed | 11/18/2021, 6:23:24 PM |
Library Catalog | JSTOR |
Abstract | Passiflora incarnata L. (Passifloraceae) is native to the southern United States and common in old fields and roadsides. This herbaceous, perennial vine has hermaphroditic flowers yet is self-incompatible. Large bees pollinate these flowers that produce fruits that may be eaten by mammals. Although the mode of sexual reproduction suggests the potential for long distance dispersal of genes, this species also displays extensive vegetative reproduction from rhizomes. Vegetative reproduction may reduce the amount of genetic variation within a population and increase differentiation among populations. We report on the macrogeographic allozymic variation within P. incarnata. Plants were collected from three regions in South Carolina (SC) and Georgia (GA). Genetic data were collected from nine polymorphic loci with starch gel electrophoresis of allozymes. In our sample of 168 plants from SC and GA, we observed 82 different multilocus genotypes. Plants with the same multilocus genotype were collected within and among regions. Genetic data indicated that there was little genetic differentiation among regions. These data suggest that there is extensive long distance transport of genes and that the species may rely heavily on sexual reproduction to establish new habitat. |
Date Added | 11/18/2021, 6:23:24 PM |
Modified | 11/18/2021, 6:23:24 PM |
Extracted Annotations (11/20/2021, 10:34:06 PM)
"Our data suggest clonal reproduction is not the primary mode of reproduction in Passiflora incarnata." (p. 330)
"High levels of gene flow among populations in South Carolina and Georgia most likely maintain the observed low levels of differentiation." (p. 330)
"As the preferred habitat of P. incarnata is ephemeral, it may rely heavily on seeds to colonize new areas and vegetative reproduction to quickly exploit the habitat." (p. 330)
"Although incidental observation suggests mammals disperse fruits (Spears and May 1988), there are no published reports to our knowledge on specific dispersers or the fate of seed after ingestion." (p. 330)
Type | Journal Article |
---|---|
Author | Can Dai |
Author | Laura F. Galloway |
URL | https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1469-8137.2011.03966.x |
Volume | 193 |
Issue | 3 |
Pages | 787-796 |
Publication | New Phytologist |
ISSN | 1469-8137 |
Date | 2012 |
Extra | _eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-8137.2011.03966.x |
DOI | 10.1111/j.1469-8137.2011.03966.x |
Accessed | 11/18/2021, 6:23:11 PM |
Library Catalog | Wiley Online Library |
Language | en |
Abstract | • The diversity of plant breeding systems provides the opportunity to study a range of potential reproductive adaptations. Many mechanisms remain poorly understood, among them the evolution and maintenance of male flowers in andromonoecy. Here, we studied the role of morphologically male flowers (‘male morph’) in andromonoecious Passiflora incarnata. • We measured morphological differences between hermaphroditic and male morph flowers in P. incarnata and explored the fruiting and siring ability of both flower types. • Male morph flowers in P. incarnata were of similar size to hermaphroditic flowers, and there was little evidence of different resource allocation to the two flower types. Male morph flowers were less capable of producing fruit, even under ample pollen and resource conditions. By contrast, male morph flowers were more successful in siring seeds. On average, male morph flowers sired twice as many seeds as hermaphroditic flowers. This difference in male fitness was driven by higher pollen export from male morph flowers as a result of greater pollen production and less self-pollen deposition. • The production of male morph flowers in P. incarnata appears to be a flexible adaptive mechanism to enhance male fitness, which might be especially beneficial when plants face temporary resource shortages for nurturing additional fruits. |
Date Added | 11/18/2021, 6:23:11 PM |
Modified | 11/18/2021, 6:23:11 PM |
Extracted Annotations (11/20/2021, 9:41:07 PM)
"Usually only one flower per plant is open per day. Hence, pollinator attraction is not an advantage for having male flowers in this system." (p. 789)
"Male morph flowers possess all floral structures and look very similar to hermaphroditic flowers, except for the position of their styles." (p. 789)
"For male morph flowers, the styles are posed upwards for the life of the flower (Figs S1, S2). In this position, it is almost impossible for the stigmas to receive pollen via pollinator visitation." (p. 789)
"For hermaphroditic flowers, although the styles are initially upwards when the petals open, the styles deflex to a lower position over the duration of 1-2 h, resulting in a higher possibility of contact with the pollen-covered dorsal thorax of the carpenter bees (Dai & Galloway, 2011)." (p. 789)
"In a previous study, male morph flowers were found to have very low fruit set under natural conditions (0.95%; May & Spears, 1988)." (p. 789)
"However, the results are mixed as to whether male morph flowers can produce fruit if given sufficient pollen, and therefore the breeding system is termed 'functional andromonoecy' (May & Spears, 1988)." (p. 789)
"assiflora incarnata plants have rhizomatous growth, and branches emerging from the ground in a clump are generally from one genotype (McGuire, 1999)." (p. 789)
"Overall, male morph flowers do not seem to be less costly than hermaphroditic flowers in P. incarnata." (p. 791)
"However, male morph flowers showed a modest shift from female function to male" (p. 791)
"function with a slightly shorter style (3% difference), lighter dry weight (2% difference) and 13% more pollen than hermaphroditic flowers (Table 1)." (p. 791)
"However, pollen quality (pollen viability and pollen germination, Table 2) and ovule production (Table 1) did not differ between the two types of flower." (p. 791)
"There was also no difference in attractive traits, such as flower size and nectar volume, between hermaphroditic and male morph flowers (Table 1). Probably because of this similarity, pollinators did not discriminate between the two types of flower (Table 1)" (p. 791)
"Male morph flowers in P. incarnata were less capable of producing fruit, and this ability did not change even under ample pollination and resource conditions." (p. 791)
"Natural fruit set for hermaphroditic and male morph flowers was 88.9% and 4.3% (n = 45 and 46), respectively." (p. 791)
"Hence, male morph flowers, although morphologically comparable with hermaphroditic flowers with the exception of style deflexion, are physiologically altered to function mostly as male flowers." (p. 792)
"Male morph and hermaphroditic flowers did not differ in siring ability under controlled pollination." (p. 792)
"The pollen from the two types of flower had similar success in siring fruits and there was no difference in the number or average weight of seeds (Table 2)." (p. 792)
"Male morph flowers had higher natural siring success than hermaphroditic flowers." (p. 792)
"The flowers that were in floral arrays with focal male morph flowers had almost twice the probability of setting fruit as those with focal hermaphroditic flowers (Fig. 1a, Table 3)." (p. 792)
"The total number of seeds sired by focal male morph flowers was also nearly double that of focal hermaphroditic flowers" (p. 792)
"However, there was no difference at the fruit level. Fruits that were sired by a focal male morph or focal hermaphroditic flower had similar seed quantity and average seed weight (Fig. 1b, Table 3)." (p. 792)
"There was a more than 10-fold difference in self-pollen deposition between focal male morph and hermaphroditic flowers (Fig. 2, Table 3), indicating that male morph flowers suffered less from sexual interference." (p. 792)
"At the plant level, male morph flowers were typically produced after hermaphroditic flowers and later in the season." (p. 792)
"Male morph flowers were usually produced two nodes later than hermaphroditic flowers (flowering rank: hermaphroditic, 3.0 ± 0.2; male morph, 4.9 ± 0.2; tpaired = 7.27, df = 308, P < 0.0001)." (p. 792)
"However, most plants alternated flower production with frequent switches between hermaphroditic and male morph flowers." (p. 792)
"In P. incarnata, male morph flowers did not differ significantly from hermaphroditic flowers. Although male morph flowers had a 3% smaller style and 2% less weight, the difference was minimal compared with that found in other species." (p. 793)
"As a result of morphological similarity between the flower types, we tested whether male morph flowers retained female function, and found that they rarely set fruit naturally or under increased pollen and resource conditions. This contradicted our expectations because, given that male morph flowers have fully developed female reproductive organs, we expected that they would also have the physiological potential to produce fruit." (p. 793)
"Nonetheless, all evidence supports the idea that male morph flowers in P. incarnata, although morphologically appearing to function as females, are less capable of setting fruit than hermaphroditic flowers." (p. 794)
"If a plant lacks resources to produce a fruit, producing a male flower can be more successful in male fitness than the combined male and female fitness of an hermaphroditic flower." (p. 794)
"Therefore, in P. incarnata, the production of male flowers when hermaphroditic flowers are present in the population appears to be an adaptation to a temporary resource shortage created by allocation into maturing fruits." (p. 794)
"Compared with hermaphroditic flowers, male flowers had higher style deflexion, which reduced the chance of contact between pollinators and stigmas, and therefore more pollen could be exported." (p. 794)
"From simple calculations, we know that a focal male flower exported 37 times as many pollen grains to other flowers as to itself, whereas a focal hermaphroditic flower only exported 2.3 times as many." (p. 794)
"However, focusing only on pollen exported, male flowers exported 32% more pollen than hermaphroditic flowers, even though they only produced 13% more pollen." (p. 794)
"This additional export is probably a result of reduced sexual interference, given that the two types of flower were visited by pollinators at the same rate." (p. 794)
"The pattern of fruit production probably explains why P. incarnata produces male flowers in between hermaphroditic flowers instead of exclusively at the end. When the fruiting probability is low, later in the season, male fitness is also more uncertain. Therefore, male flowers produced in the middle of the season are likely to have higher male fitness than those at the end of the season." (p. 795)
"Male flowers were not cheaper to produce and they could barely produce fruit. However, male flowers were more successful than hermaphroditic flowers in siring offspring because of increased pollen export." (p. 795)
"Based on the seasonal flowering pattern, we propose that the production of male flowers in P. incarnata might be a response to real-time resource levels that predict failure in producing fruits in order to enhance fitness gain" (p. 795)
Type | Journal Article |
---|---|
Author | Maria Célia H. Reimberg |
Author | Renata Colombo |
Author | Janete H. Yariwake |
URL | http://www.scielo.br/j/rbfar/a/D6qn9Q64rDLtfVtxxGKYpwN/?lang=en |
Volume | 19 |
Pages | 853-859 |
Publication | Revista Brasileira de Farmacognosia |
ISSN | 0102-695X, 1981-528X |
Date | 2009-12 |
Extra | Publisher: Sociedade Brasileira de Farmacognosia |
Journal Abbr | Rev. bras. farmacogn. |
DOI | 10.1590/S0102-695X2009000600010 |
Accessed | 11/18/2021, 6:23:19 PM |
Library Catalog | SciELO |
Language | en |
Abstract | The aim of the present study was to evaluate the effect of soil characteristics (pH, macro- and micro-nutrients), environmental factors (temperature, humidity, period of the year and time of day of collection) and meteorological conditions (rain, sun, cloud and cloud/rain) on the flavonoid content of leaves of Passiflora incarnata L., Passifloraceae. The total flavonoid contents of leaf samples harvested from plants cultivated or collected under different conditions were quantified by high-performance liquid chromatography with ultraviolet detection (HPLC-UV/PAD). Chemometric treatment of the data by principal component (PCA) and hierarchic cluster analyses (HCA) showed that the samples did not present a specific classification in relation to the environmental and soil variables studied, and that the environmental variables were not significant in describing the data set. However, the levels of the elements Fe, B and Cu present in the soil showed an inverse correlation with the total flavonoid contents of the leaves of P. incarnata. |
Date Added | 11/18/2021, 6:23:19 PM |
Modified | 11/18/2021, 6:23:19 PM |
Extracted Annotations (11/29/2021, 12:19:14 AM)
"The pH, content of organic matter (OM), cation exchange capacity (CEC), sum of bases (Svalue; Na, K, Ca and Mg), percentage base saturation (V%; given by Svalue/ CEC x 100), content of micronutrients (B, Cu, Fe, Mn and Zn), content of the major exchangeable cations (K, Ca and Mg), level of P, level of Al, and total acidity (H + Al) were determined for each soil sample. The analyses of B, Cu, Fe, Mn and Zn were performed by atomic absorption spectrometry, the amounts of K, Ca and Mg were measured by flame photometric spectrometry, the level of H + Al was obtained by UV/VIS spectrometry, and ion exchange chromatography was utilized to determine the values of OM, P, Al, Svalue, CEC and V%." (p. 854)
"Commercial seeds of Passiflora incarnata L. Passifloraceae were provided by Johnny's Selected® Seeds (Albion, ME, USA) and sown in January 2003." (p. 854)
"Seeds were germinated in a green house at room temperature during September and October 2003. Seedlings (n=33) were selected and replanted in flower-beds in the absence of chemical fertilizers and pesticides." (p. 854)
"The ranges of the measured parameters were: pH, 4.2-5.3; P, 3-16 mg L-1; K, 0.9-2.2 mmol.L-1; Ca, 4-25 mmol L-1; Mg, 3-15 mmol.L-1; V%, 19-65 mmol L-1; B, 0.13-0.21 mg.L-1; Cu, 0.8-1.2 mg.L-1; Fe, 79-133 mg.L-1; Mn, 0.7-2.8 mg.L-1; and Zn, 0.3-2.9 mg.L-1." (p. 856)
"ng the model, accounting for 96.4% of the overall variance.l variables were not significant in describing variation in the data set, i.e. the contributions of these variables were very close to zero in PC1 and PC2. The loading plot also revealed that the soil ions (K, Mg, Ca, P, Zn, Mn, B, Fe, Cu), OM and Al + H were the most significant variables, and similarity among some variables could be observed." (p. 857)
"and similarity among some variables could be observed. EC, pH and V% were selectively removed from the data set." (p. 857)
Type | Journal Article |
---|---|
Author | Shawn E. Krosnick |
Author | Joshuah S. Perkin |
Author | Tim S. Schroeder |
Author | Lesley G. Campbell |
Author | Elizabeth B. Jackson |
Author | Silas C. Maynord |
Author | Christopher G. Waters |
Author | Jeffrey S. Mitchell |
URL | https://www.sciencedirect.com/science/article/pii/S0367253017333625 |
Volume | 236-237 |
Pages | 115-125 |
Publication | Flora |
ISSN | 0367-2530 |
Date | November 1, 2017 |
Journal Abbr | Flora |
DOI | 10.1016/j.flora.2017.10.005 |
Accessed | 11/18/2021, 6:23:13 PM |
Library Catalog | ScienceDirect |
Language | en |
Abstract | Passiflora incarnata is a functionally andromonoecious clonal wildflower, native to the southeastern United States, whose primary pollinator is the carpenter bee, Xylocopa virginica. While recent studies looking at reproductive ecology in P. incarnata have classified flowers as one of two morphs (male or hermaphroditic) based on stylar deflexion, preliminary field studies conducted in Tennessee indicated there were five distinct morphs present (three male, two hermaphroditic), supported by stylar deflexion, floral size, and pistil development. The present study sought to test the hypothesis that five distinct floral morphs are present in P. incarnata by sampling 13 floral characters, and to document variation in nectar constituents, volume, and concentration across the five morphs. Five well-established individual plants were examined at three sites in Cookeville, Tennessee. Two-factor permuted analysis of variance of 13 floral characteristics with floral morph and individual plants as factors suggested that morph:plant interactions explained 6%, individual plant explained 18%, and floral morph explained 36% of variation in floral characteristics. Nectar sampling indicated that all morphs produced nectar comprised exclusively of sucrose. Nectar volume generally increased with floral morph size, while nectar concentration decreased. NMDS analysis indicated that four of the five hypothesized morphs were supported as distinct, with morphs 4a and 4b best classified as submorphs due to substantial overlap. The supported morphs are best distinguished by ovary width, ovary length, style length, and stigma width. These findings support a hypothesis that the morphs result from variation in developmental arrest during floral ontogeny. The ecological implications of the morphs and nectar variation are considered for X. virginica with suggestions for additional studies. |
Date Added | 11/18/2021, 6:23:13 PM |
Modified | 11/18/2021, 6:23:13 PM |
Extracted Annotations (11/20/2021, 6:43:49 PM)
"However, the system of andromonoecy in P. incarnata is complicated by several factors: (1) hermaphroditicflowers experience a short period of "maleness" at the start of anthesis because it takes ca. 2-3 h for the styles to reach theirfinal position near the anthers; (2) to identifyfloral morph and gender correctly, all observations must be performed in the late afternoon once anthesis has completed for each newly openedflower; (3) there is a great deal of variation in the distance the styles move downward in both "male" and "hermaphroditic" floral morphs, (4) someflowers exhibit a partially to completely aborted gynoecium (May and Spears, 1988), and (5) hand pollinations performed on functionally "male"flowers have indicated that some of theseflowers are, in fact, fertile (Dai and Galloway, 2012; Spears and May 1988)." (p. 117)
"To try to identify differences infloral morphs apart from stylar movement, 13 morphological characteristics were measured for the flowers of P. incarnata." (p. 118)
"Downward deflexion positively correlates with the amount of pollen deposition aflower will experience during insect visitation, but may also increase the amount of self-pollination that occurs (Dai and Galloway, 2012; Dai et al., 2016)." (p. 122)
"Given that P. incarnata is self-incompatible, this pollen will not fertilize ovules and may reduce the possibility that outcrossed pollen grains may germinate, depending on where the selfed-pollen is deposited on the stigma (May and Spears, 1988)." (p. 122)
"With increasing female function, thefloral morphs demonstrated a general increase in size, as evidenced by 11 of the 13 characters examined." (p. 122)
"Within the bud, each organ initiated will have a unique time to maturity, with certain organs reaching maturity earlier than others." (p. 122)
"Notably, all morphs are able to produce nectar; even morph 1 has developed enough secretory tissue to produce ca. 13μL on average." (p. 122)
"In contrast, the work presented here focuses on morphological variation and its developmental causes; the implications of morph 3 as an "intermediate gender" will be interesting to consider in future ecological studies." (p. 122)
"While it is likely that functional male morphs in P. incarnata result from later ontogenetic changes, a comparative developmental study looking at floral bud development across the morphs identified in this species would confirm this." (p. 123)
"As the number of fruits developing on the plant increases, less energy is directed towards producing hermaphroditicflowers, resulting in increased relative numbers of functionally maleflowers." (p. 123)
"De Jong and Bruinsma (1974) suggested that IAA content in the seeds of developing fruits may inhibit pistil development; it is possible a similar hormonal effect occurs in P. incarnata." (p. 123)
"Thus, there may be multiple factors (genetic, hormonal, resource limitation) that are affecting andromonoecy in Passiflora." (p. 123)
"Nectar volume was shown to increase across morphs 1-4a, with morph 4b decreasing slightly; significant differences were only detected between morph 1 and morphs 3 and 4a." (p. 123)
"Interestingly, this nectar volume pattern is congruent with nectar chamber size, suggesting a connection between the capacity of the chamber and the maximum volume of nectar that the flower produces." (p. 123)
"Field studies conducted on P. incarnata in Virginia (Dai and Galloway, 2012), Florida (May and Spears, 1988), New York (McGuire, 1998), Oklahoma (Hardin et al., 1972), South Carolina (Cunningham, 2000) and Texas (Frankie and Vinson, 1977) have indicated that X. virginica is the primary effective pollinator, and this appears to be the case in Tennessee, based on preliminaryfield studies (Krosnick, unpublished data)." (p. 123)
"As P. incarnata is self-incompatible, insect vectors are essential for natural reproduction." (p. 123)
"This work will be especially interesting with regard to morph 3, a functionally male morph, which is predicted to have at least some capacity to produce viable seeds." (p. 124)
Type | Journal Article |
---|---|
Author | Agastya P. Bhati |
Author | S. Goyal |
Author | Ram Yadav |
Author | N. Sathyamurthy |
URL | https://doi.org/10.1007/s12038-021-00202-1 |
Volume | 46 |
Issue | 3 |
Pages | 84 |
Publication | Journal of Biosciences |
ISSN | 0973-7138 |
Date | 2021-08-19 |
Journal Abbr | J Biosci |
DOI | 10.1007/s12038-021-00202-1 |
Accessed | 11/18/2021, 6:53:01 PM |
Library Catalog | Springer Link |
Language | en |
Abstract | Based on a careful examination of the onset of violet colored dots along the filaments in the developing floral bud stage and the formation of alternating bands of violet and white color in the matured flowers of Passiflora incarnata (Passion flower), it is concluded that the pattern arises from a competition between the production of violet colored anthocyanin and the colorless flavonols along the filaments. The activator-inhibitor model of Gierer and Meinhardt along with the reaction diffusion theory of Turing is used to explain the formation of concentric rings in the flower. |
Short Title | Pattern formation in Passiflora incarnata |
Date Added | 11/18/2021, 6:53:01 PM |
Modified | 11/18/2021, 6:53:01 PM |
Extracted Annotations (11/27/2021, 1:05:23 PM)
"By varying the relative initial concentrations of the activator and the inhibitor and varying their diffusion coefficients, it is shown that the alternating bands of violet and white in PI can be understood in terms of the activator-inhibitor model, with the inhibitor moving faster than the activator." (p. 95)
Type | Journal Article |
---|---|
Author | Hans Wohlmuth |
Author | Kerry George Penman |
Author | Tanya Pearson |
Author | Reginald Paul Lehmann |
URL | https://www.jstage.jst.go.jp/article/bpb/33/6/33_6_1015/_article |
Volume | 33 |
Issue | 6 |
Pages | 1015-1018 |
Publication | Biological and Pharmaceutical Bulletin |
Date | 2010 |
Extra | tex.ids= wohlmuth_pharmacognosy_2010-1 |
DOI | 10.1248/bpb.33.1015 |
Library Catalog | J-Stage |
Abstract | Passionflower (Passiflora incarnata L.) is used in phytotherapy as a mild sedative and anxiolytic agent. In the literature it is clear this plant shows considerable qualitative and quantitative variability with respect to its content of C-glycosyl flavones, some of which are used as marker compounds for extracts. Analysis of plant material cultivated in Australia revealed two chemically distinct groups; hence an investigation was carried out to determine whether distinct intraspecific chemotypes exist in this species. Eleven P. incarnata samples were analysed by HPLC, LC-MS and two different TLC methods. The samples fell into two distinct groups with respect to their C-glycosyl flavone profile, with little within-group variation. One chemotype was dominated by isovitexin and schaftoside/isoschaftoside, as is most widely reported in the literature for this species. The other chemotype was characterized by a high level of swertisin, with low levels of schaftoside/isoschaftoside. The two chemotypes are readily identified by both HPLC and TLC. Although the compounds responsible for the therapeutic activity of P. incarnata are yet to be identified, phytomedicines should be made with the accepted isovitexin chemotype until the pharmacological implications of chemotypical differences are understood. |
Date Added | 11/18/2021, 6:25:45 PM |
Modified | 11/30/2021, 12:53:44 AM |
Extracted Annotations (11/29/2021, 12:07:07 AM)
"All samples comprised dried plant material except Sample P7, which was a P. incarnata extract produced by Indena S.p.A. (Milan, Italy). Besides this sample, 10 other samples of P. incarnata were analysed, including 7 commercial samples obtained from raw materials suppliers and 3 samples collected by the authors from cultivated plants." (p. 1015)
"Rehwald and colleagues analysed 14 P. incarnata samples obtained commercially in Switzerland and Germany and found the chromatograms showed no uniformity." (p. 1017)
"Based on the literature cited above and the results of the present study, it is clear that P. incarnata extracts display very considerable variability with respect to their C-glycosyl flavone profiles." (p. 1017)
"It is evident from these studies, however, that most commercial samples are dominated by isovitexin, while only a few have swertisin as the major flavonoid." (p. 1017)
"In terms of the six Australian samples of the swertisin chemotype, it is theoretically possible that they all could have originated from plants with a sole ancestor in the form of seed imported to Australia from North America several decades ago. A similar explanation is not possible for the samples of schaftoside/isoschaftoside chemotype, as they were sourced from three different continents." (p. 1017)
"In conclusion, the findings of this study demonstrate the existence of a second distinct chemotype of P. incarnata characterised by a very high swertisin content and the virtual absence of schaftoside/isoschaftoside." (p. 1017)
"Although the pharmacological activity of P. incarnata has not been linked to specific flavonoid compounds, the existence of chemotypes within the species raises quality issues for the herbal medicine and phytopharmaceutical industries." (p. 1018)
Type | Journal Article |
---|---|
Author | Luciana G. Angelini |
Author | Clarissa Clemente |
Author | Silvia Tavarini |
URL | https://www.mdpi.com/2077-0472/11/10/937 |
Volume | 11 |
Issue | 10 |
Pages | 937 |
Publication | Agriculture |
ISSN | 2077-0472 |
Date | 2021-09-28 |
Extra | 00000 |
Journal Abbr | Agriculture |
DOI | 10.3390/agriculture11100937 |
Accessed | 10/8/2021, 7:43:14 PM |
Library Catalog | DOI.org (Crossref) |
Language | en |
Abstract | Perennial medicinal and aromatic plants (MAPs) may represent interesting, environmentally friendly crops for the Mediterranean environments. Among MAPs, Passiflora incarnata L. (maypop) represents a very promising crop for its wide adaptability to diverse climatic conditions, low input requirements, and high added-value due to its unique medicinal properties. The main problem in P. incarnata large-scale cultivation is the poor seed quality with erratic and low seed germination, due to its apparent pronounced seed dormancy. Therefore, the aim of this work was to investigate different chemical and physical treatments for overpassing seed dormancy and enhancing seed germination rates of P. incarnata. The effects of (i) different pre-germination treatments (pre-chilling, gibberellic acid—GA3, leaching, scarification, non-treated control), (ii) light or darkness exposure, and (iii) temperature conditions (25, 30, and 35 ◦C constant and 20–30 ◦C alternating temperatures) have been examined in seed germination percentage and mean germination time of three P. incarnata accessions (F2016, FF2016, and A2016) grown in field conditions in Central Italy. Data showed that the pre-germination treatments generally stimulated faster germination compared to the control, with the best results obtained in the dark and with high temperatures. These findings are useful for the choice of the most suitable seed pre-germination treatment that can facilitate stable, high and agronomically acceptable germination rates in P. incarnata. |
Date Added | 10/8/2021, 7:43:14 PM |
Modified | 3/5/2022, 6:00:44 PM |
The seeds of three P. incarnata accessions, namely F2016, FF2016, and A2016, were kindly supplied by F.I.P.P.O. (Federazione Italiana Producttori Piante Officinali) and by Aboca s.r.l. company (Sansepolcro, Arezzo, Italy).
The planting had been carried out in 2014 by transplanting seedling on a clay loamy soil.
Fruits were harvested and soaked in tap water for a couple of days until maceration occurred. At the end of maceration process, the seeds werea separated from the pulp, washed with tap water at room temperature, air dried, and cleaned with sieves and flows of air (Figure 2). Subsequently, seeds were stored in darkness at 4-5C and 60% relative humidity for 6 months.
The seeds were placed in 12 cm Petri dishes and incubated in climatic cabinets.
For pre-chilling treatment, seeds in groups of 25 were placed in Petri dishes between two sheets of filter paper and moistened with 5 ml tap water, then they were put in a refrigerator at 4-5C for 4 days. The hormone treatment was conducted using GA3 (200 ppm or 0.2g/L) prepared starting from giberellic acid, 90% giberellin A3 basis (TLC). Seeds were placed between two sheets of filter paper, moistened with 5ml GA3 solution. The third treatment consisted of seed leaching in tap water for 8 h, which were then put in Petri dishes between two sheets of filter paper moistened with only 3 ml of tap water, because they were already partially imbibed. Finally, mechanical scarification was carried out by rubbing seeds manually on sandpaper to damage the hard outer layers, after which they were put in Petri dishes between two sheets of filter paper moistened with 5ml tap water.
The light was provided by cool white-light-fluorescent lamps Osram L18 W/20 (10 umol photons m-2 s-1 PAR).
Extracted Annotations (11/17/2021, 10:43:57 PM)
"P. incarnata is successfully cultivated in Florida, Guatemala, and Italy. In Italy, P. incarnata is grown mostly in the central regions of the country, where it behaves as perennial springsummer crop with a stand duration of 5-7 years [11]. In winter, the aerial part of the plant dies and, at the beginning of springtime, there is the vegetative upturn from the bottom of the plant." (p. 938)
"The main problem in its large-scale cultivation is the poor seed quality, with erratic and low seed germination, due to its apparent pronounced seed dormancy. This makes it difficult to grow P. incarnata crops from seeds, so the nursery reproduction is generally carried out by cuttings, with a substantial increase in the cultivation costs." (p. 938)
"Several studies seem to have confirmed that Passiflora spp. have exogenous dormancy due to a combination of both mechanical and chemical factors. De Oliveira et al. [14] and Torres [15] highlighted that the semi-domesticated passionfruit have strong dormancy effects." (p. 938)
"For this purpose, the responses of seed lots of three P. incarnata accessions grown in 2016 in Central Italy with different treatments (pre-chilling, GA3 , leaching, scarification, non-treated control), different light or darkness exposure, and different temperature conditions (25, 30, and 35 C constant temperatures and 20-30 C alternating temperatures) have been examined." (p. 938)
"Fruits were harvested and soaked in tap water for a couple of days until macerationdom block design have occurred. At the end of maceration process, the seeds were separated from the pulp, il, the treatments were: (i) pre-chilling, (ii) Gibberellic acid (GA3), washed with tap water at room temperature, air dried, and cleaned with sieves and flows ted control. For each of these treatments, of air (Figure 2). Subsequently, seeds were stored in darkness at 4-5 °C and 60% relative nditions(25,30,and35Cconstanttemperhumidity for 6 months. s) were also examined. For each P. incarnata accession, four replications of 50 seeds each for every pre-germination treatment and for the control, were used." (p. 939)
"The results showed that germination percentage was significantly affected by pre-germination treatments and T&L exposure, as well as by their reciprocal interactions, in all P. incarnata accessions. On the other hand, pre-germination treatments did not show any significant effect on MGT values of any accession." (p. 941)
"T&L exposure and the interaction between the two variability factors, instead, played a key role in affecting mean germination time in all three accessions." (p. 941)
"Regarding the effect of temperature and light/dark (L/D) conditions, no germination was achieved for the control at 25 C both in light and dark conditions, confirming that this temperature value represents, for maypop, the below threshold for germination." (p. 941)
"Scarification worsened germination rate, with values equal to control." (p. 941)
"AxB interaction, interestingly, the best conditions were found at 35 C/D in control and after prechilling, GA3 , and leaching. It is important to note that, in all other conditions (25 C/D; 30 C/D&L; 35 C/L), the pre-germination treatments significantly increased the germination rates in comparison with the control, except for scarification." (p. 942)
"This behavior confirmed that, for P. incarnata, the optimal germination can be achieved at 35 C in the dark." (p. 943)
"In FF2016 and A2016 accessions, pre-germination treatments were absolutely necessary in order to improve the germination process." (p. 943)
"MGT values showed that germination peaks usually occurred within two weeks. Beyond this time, seeds sporadically sprouted." (p. 943)
"On the contrary, alternating temperature (20/30 C) did not improve germination energy, except when combined with prechilling." (p. 943)
"Finally, considering the average values over the three accessions, all the pre-germination treatments generally stimulated a faster germination compared to control. Among the tested treatments, scarification seemed to lead to a quick germination process, even if germination rate was not elevated." (p. 944)
"Definitively, the obtained results confirmed that P. incarnata seeds are photoblastically negative and have pronounced heat requirements for germination." (p. 944)
"Optimal germination percentages, in fact, were achieved with 35 C in darkness, for each accession." (p. 944)
"A significant interaction between pre-chilling and temperature was observed with significantly higher germination values than control (+330%) at 20/30 C (16/8 h)." (p. 944)
Type | Journal Article |
---|---|
Author | Glenn Wehtje |
Author | Russell B. Reed |
Author | Roland R. Dute |
URL | https://www.cambridge.org/core/journals/weed-science/article/abs/reproductive-biology-and-herbicidal-sensitivity-of-maypop-passionflower-passiflora-incarnata/2BDA34A9B9146EABFCECC2C83AD1983A |
Volume | 33 |
Issue | 4 |
Pages | 484-490 |
Publication | Weed Science |
ISSN | 0043-1745, 1550-2759 |
Date | 1985/07 |
Extra | Publisher: Cambridge University Press |
DOI | 10.1017/S0043174500082709 |
Accessed | 11/18/2021, 3:14:40 PM |
Library Catalog | Cambridge University Press |
Language | en |
Abstract | Studies were conducted to evaluate seed and root reproduction and herbicide sensitivity of maypop passionflower (Passiflora incarnata L. ♯ PAQIN). Water-leached seeds that were not exposed to light had the greatest germination (53%). Depending on soil type, seedlings emerged from depths of 10 to 12 cm. Most rapid germination and seedling development occurred between 30 and 35 C. Plants rapidly produced an extensive system of lateral roots and rhizomes that had regenerative capability at maturity. Root or rhizome sections of only 0.5 cm in length had a 20% regeneration rate. Desiccation effectively reduced viability of root and rhizome pieces. Effective herbicide control was limited to the triethylamine salt of triclopyr {[(3,5,6-trichloro-2-pyridinyl)oxy] acetic acid} at 2.2 ai kg/ha, alkanolamine salt of 2,4-D [(2,4-dichlorophenoxy)acetic acid] at 1.7 kg/ha, and dicamba (3,6-dichloro-o-anisic acid) at 0.3 to 0.6 kg/ha. |
Date Added | 11/18/2021, 3:14:40 PM |
Modified | 11/18/2021, 3:14:40 PM |
Tillage at the time of crop planting fragments the roots and spreads the [maypop] infestation.
Ontogony
Maypop passionflower development was monitored using the rhizotron located at Auburn, AL. The rhizotron consisted of a cement-lined (3 sides) compartments 1.2 m long, 1 m wide, and 1.9 m deep. Inward slanted glass on one side permitted viewing of the root system.
Seed germination studies.
Treatments included tapwater leaching (24 and 48 h), acid scarification in 12 M H2SO4 (5 min), mechanical scarification (5 sec) in a drum-type scarifier lined with 80-grit sandpaper (2), and untreated control.
Five replicates of 20 seeds placed on moistened filter paper within a petri dish were assigned to each of the five treatments in a completely random design. The experiment was conducted twice in a lighted (continuous PPFD of 400 uEm-2s-1) and dark incubator (both 30C constant).
Wax-coated cartons (1.8L) that had been perforated to allow drainage were filled with soil to a depth of 4cm. Twenty maypop passionflower seeds, which were beginning to germinate (radicle protruding from the opening seed coat), were placed on the soil surface. Soil was added over the seeds to depths of 2, 4, 6, 8, 10, 12, and 14 cm as measured after watering.
Seedlings that emerged via the junction between soil and carton wall were excluded from the count.
Germination was determined by rolling 50 seeds of either species in moist paper toweling and then incubating the wrapped seeds at constant temperature of 25, 30, 35, and 40C.
Regeneration from roots.
Mature lateral roots, freshly unearthed in early summer, were sectioned into lengths of 0.5, 1.0, 2.0, 4.0, 6.0, or 8.0 +-0.1 cm.
Fragments were planted 1 cm below the surface of potting soil [sandy loam, sand, peat (1:1:1, v/v/v) in nursery flats. Flats were kept in an unheated greenhouse. Temperature ranged between 23 and 32 C; day length was 14 hours. Flats were watered daily for one month.
Treatments included dehydration periods of 0, 2, 4, 6, 12, 24, 36, 48, and 72 h, after which the roots were again weighed and planted in the greenhouse as described above to evaluate viability.
Herbicide efficacy.
Herbicide treatments included glyphosate at 1.1 and 2.2 ai kg/ha, the alkanolamine salt of 2,4-D at 0.8 and 1.7 kg/ha, dicamba at 0.3, 0.6, and 1.1 kg/ha, the combination of dicamba at 0.3 kg/ha and the alkanolamine salt of 2,4-D at 0.8 kg/ha, the triethylamine salt of triclopyr at 1.1 and 2.2 kg/ha, and the dimethylamine salt of 2,4-DB at 0.3 and 0.6 kg/ha.
By the 11th week after germination, tendrils were being produced at the shoot apex, and the tap root extended almost 1 m into the soil.
Thickening and the formation of regenerative tissue continued to extend outward along horizontal roots growing at a depth of 10 to 20 cm below the soil surface and along the vertically oriented roots. With rhizotron-grown plants, shoot initials were evident on roots to a depth of approximately 75 cm below the soil surface.
Germination with and without light, as averaged over all treatments, was 2% and 25%, respectively. The only treatment to enhance germination above the untreated control was water leaching, and in this case 48 h was no better than 24 h. Acid and mechanical scarification inhibited germination. Water-leached seed kept in the dark had the highest germination rate observed (53%). The requirement for leaching indicated the presence of germination inhibitor(s) which leaving removed.
Emergence in the Dothan sandy loam decreased from 100% at 2- to 4-cm depth to 0% at 12cm. Emergence was unaffected at depths up to and including 8 cm in the Albany loamy sand but decreased to 0 at 14 cm.
Optimum development for both species (as evidenced by germination and growth of the radicle) was between 30 and 35 C. Maypop passionflower seedling emergence only occurred between 30 (9 days) and 35 C (8 days). Within this range of temperature, rate of radicle extension was consistent (5.3 mm/day).
Lateral root fragments equal to or greater than 4 cm in length had nearly a 100% regeneration rate, whereas those 0.5 cm in length had a 21% regeneration rate.
Roots rapidly desiccated and lost regenerative potential. As roots dehydrated, the surface cracked, exposing internal tissue and thereby enhancing further desiccation. After exposure to natural drying conditions for 72 h in late May, roots were reduced to 43% of the original weight and viability has been reduced to 3%.
Desiccation in the second trial in August was more rapid. After 72 h exposure, only 31% of the original fresh weight remained, and no viability was detected.
The simplest explanation for this observation is that the subterranean network is actually a mixed population of roots and rhizomes, with a relative frequency of approximately 9:1, respectively. Regardless of the anatomy, both structures appear identical externally and produce shoots.
Excellent control (>= 90%) was achieved only with triclopyr (2.2 kg/ha), alkanolamine salt of 2,4-D (1.7 kg/ha), and dicamba (0.3 to 0.6 kg/ha).
Dicamba was superior to all other treatments; however, an inverse response between rate of dicamba and control was detected. Higher rates resulted in more contact activity; rapid foliar necrosis was followed by regrowth.
Type | Journal Article |
---|---|
Author | L. Veiga-Barbosa |
Author | S. Mira |
Author | M.E. González-Benito |
Author | M.M. Souza |
Author | L.M.M. Meletti |
Author | F. Pérez-García |
Volume | 41 |
Issue | 1 |
Pages | 89-97 |
Publication | Seed Science and Technology |
Date | 2013-04-01 |
Extra | 00000 |
Journal Abbr | Seed Science and Technology |
DOI | 10.15258/sst.2013.41.1.08 |
Library Catalog | IngentaConnect |
Abstract | Seed germination of 10 Passiflora species (P. alata, P. cincinnata, P. coriacea, P. edulis, P. edulis f. flavicarpa, P. foetida, P. giberti, P. micropetala, P. morifolia, P. mucronata and P. nitida) was studied after seed desiccation and storage in liquid nitrogen (LN, -196°C). Mechanical scarification of the seed coat was carried out to enhance seed germination for all accessions tested. Most accessions showed desiccation-tolerant seeds. In general, final germination percentages were unaffected by storage in LN, both for desiccated and for non-desiccated seeds. Therefore, seed cryopreservation could be a suitable procedure for the long-term conservation of these Passiflora species. |
Date Added | 11/17/2021, 10:55:39 PM |
Modified | 3/5/2022, 6:00:57 PM |
Extracted Annotations (11/20/2021, 11:45:19 PM)
"Ripe fruits of 21 accessions of 10 Passiflora species were collected from several plants between 2002 and 2010 in Iheus and Cruz das Almas (Bahia, Brazil) and Campinas," (p. 90)
"Jaboticabal and Piracicaba (São Paulo, Brazil) (table 1)." (p. 91)
"Seeds were manually separated from pulp, washed with tap water at room-temperature and dried in the laboratory for seven days. Seeds were then stored at room temperature (approximately 25°C) inside hermetic containers until the start of the trials in 2011." (p. 91)
"For each accession, three replicates of 20 seeds each held in open Petri dishes were desiccated inside hermetically sealed plastic containers (29 × 23 × 20 cm) containing approximately 100 g silica gel." (p. 91)
"The desiccation periods used were 0 (initial seed water content), 6, 12, 24, 36, 48 and 72 hours." (p. 91)
"To determine water uptake capacity during seed imbibition, three replicates of 20 nondesiccated seeds each per accession were weighed and then placed in Petri dishes between two discs of moist filter paper." (p. 91)
"Before sowing, seeds were soaked at room temperature (approximately 25°C) for 24 hours in distilled water and then manually scarified by removing a small basal portion of the seed coat using a scalpel. Three replicates of 20 seeds each were sown for germination on top of two sheets of filter paper previously moistened with 4.5 ml distilled water, in 9 cm-diameter glass Petri dishes. Seeds were incubated at alternating 30/20°C under a 16-hour light photoperiod (30°C for 16 hours in light and 20°C for eight hours in dark). Filter papers were rewetted regularly with distilled water as required." (p. 91)
"Before sowing, desiccated seeds were previously humidified inside plastic containers with a saturated atmosphere for 24 hours. After this humidification period, seeds were presoaked for 24 hours in distilled water, mechanically scarified and then sown as above. Non-desiccated seeds were used as control." (p. 91)
"Desiccated (over silica gel for 72 hours) and non-desiccated seeds of each accession were placed inside polypropylene cryovials and immersed in liquid nitrogen (LN, -196°C) for one week. Cryovials were then removed and allowed to warm at room temperature for three hours." (p. 91)
"For most accessions, germination started after two days of incubation and 50% of final germination percentage was reached within 15 days." (p. 93)
"When germination data of control, desiccated, cryopreserved, desiccated-cryopreserved seeds were analysed, no significant differences were found among accessions for most of the species and data from the different accessions were pooled together (figure 1)." (p. 93)
"Immersion in liquid nitrogen of non-desiccated seeds improved germination compared with control seeds in all those species except P. morifolia where no significant differences were found (figure 1)." (p. 93)
"Desiccation reduced germination with respect to control seeds in P. coriacea, P. foetida, P. micropetala, P. mucronata and P. nitida. However, in these species, except in P. nitida, germination of desiccated seeds improved after immersion in liquid nitrogen. Nevertheless, in P. foetida the decrease of germination after desiccation was not improved by immersion in liquid nitrogen to the levels of control-LN seeds." (p. 93)
"Seeds of all accessions imbibed water after soaking in distilled water for 24 hours. Therefore, this could indicate that these seeds do not show physical dormancy (according to Baskin and Baskin, 2004)." (p. 95)
"As for other Passiflora species (Ellis et al., 1985; Delanoy et al., 2006), seeds of the accessions studied in this work showed mechanical dormancy, although it is possible that other dormancy types (i.e. chemical dormancy) can also be present in these seeds." (p. 95)
"Our results indicate that seeds of most Passiflora species studied can be withstand exposure to liquid nitrogen temperatures and therefore be cryopreserved." (p. 95)
"In conclusion, and according to the results obtained in this work, P. alata, P. cincinnata, P. coriacea, P. edulis, P. giberti, and P. morifolia seeds can be desiccated to water contents of 2.1-3.6% and cryopreserved, while those of P. foetida, P. micropetala, P. mucronata, and P. nitida were damaged by desiccation but can be cryopreserved at 6.1-7.3% wc. The reponse of P. edulis f. flavicarpa varied among acessions and further research would be required." (p. 95)
Type | Journal Article |
---|---|
Author | Jonas Akenaton Venturineli Pagassini |
Author | Leandro José Grava de Godoy |
Author | Felipe Girotto Campos |
Author | Gustavo Ribeiro Barzotto |
Author | Maria Aparecida Ribeiro Vieira |
Author | Carmen Sílvia Fernandes Boaro |
URL | https://www.nature.com/articles/s41598-021-01647-y |
Rights | 2021 The Author(s) |
Volume | 11 |
Issue | 1 |
Pages | 22064 |
Publication | Scientific Reports |
ISSN | 2045-2322 |
Date | 2021-11-11 |
Extra | Bandiera_abtest: a Cc_license_type: cc_by Cg_type: Nature Research Journals Number: 1 Primary_atype: Research Publisher: Nature Publishing Group Subject_term: Photosynthesis;Plant physiology;Plant signalling;Plant stress responses;Secondary metabolism Subject_term_id: photosynthesis;plant-physiology;plant-signalling;plant-stress-responses;secondary-metabolism |
Journal Abbr | Sci Rep |
DOI | 10.1038/s41598-021-01647-y |
Accessed | 11/18/2021, 3:20:34 PM |
Library Catalog | www.nature.com |
Language | en |
Abstract | Passiflora incarnata L. is a species of global pharmacological importance, has not been fully studied in the context of cultivation and management. It is known that silicon acts on abiotic stress and promotes phenols synthesis. The practice of mechanical damage is widely used in P. incarnata crops, and its interaction with silicon can have a significant influence on plant metabolism. Therefore, our objective was to investigate the effects of silicon and mechanical damage on photosynthesis, polyphenols and vitexin of P. incarnata. The experiment was conducted in a factorial design with SiO2 concentrations (0, 1, 2, 3 mM) and presence or absence of mechanical damage. It was found that mechanical damage improved photosynthetic performance at lower concentrations or absence of silicon. Moreover, this condition promoted an increasing in vitexin concentration when SiO2 was not provided. The application of 3 mM Si is recommended to increase polyphenols and vitexin, without harming dry mass of aerial part. The interaction between silicon and mechanical damage could be a tool to increase agronomic yield and commercial value of the P. incarnata crop. |
Date Added | 11/18/2021, 3:20:34 PM |
Modified | 11/18/2021, 3:20:34 PM |
Extracted Annotations (11/19/2021, 5:36:26 PM)
"It was found that 2hanical damage improved photosynthetic performance at lower concentrations or absence of silicon." (p. 22064)
"Plants cultivated with 2 mM SiO2 showed higher dry mass of leaves (LDM) and total Growth indices. SiO2 did not differ from those with lower concentration or Si absence. When 3 mM SiO2 was provided, TDM was reduced (Fig. 6a)." (p. 22067)
"The mechanical damage in P. incarnata at 140 DAS stimulated remained bud's photosynthetic activity, suggesting compensatory photosynthesis30, since the removal of old branches allows interception of solar radiation better by young branches." (p. 22070)
"sed in this work were carried out in accordance with relevantinstitutional, national or international guidelines. carbonized rice husk and organic residue, using 40 mL tubes. At 81 DAS, the seedlings were transferred to hydroponics. Two plants per pot, with a 6 L capacity, were kept in nutrient solution number 2 by Hoagland and Arnon39, at 25% ionic strength, which was raised to 50% at 96 DAS." (p. 22071)
"ont dioxide (SiO2) concentrations equal to 0, 1, 2 and 3 mM and the presence or absence of mechanical damage. DAS mechanical damage was done to the main branch, by removing the aerial part of one of the plants (leaving other intact), 15 cm from the pot surface, maintaining a tiller." (p. 22071)
"ving the aerial part of one of the plants (leaving other intact), 15 cm from the pot surface, maintaining a tiller. e addition of 0.3 L of NaOH 1 M for its solubilization. When the Si was supplied to the nutrient solution, hydrochloric acid was used to adjust the pH, which was kept between 5.5 and 6.5." (p. 22071)
Type | Journal Article |
---|---|
Author | Surender Goyal |
Author | Rosmi Reji |
Author | Siddharth S. Tripathi |
Author | Narayanasami Sathyamurthy |
URL | https://www.currentscience.ac.in/Volumes/117/07/1211.pdf |
Volume | 117 |
Issue | 7 |
Pages | 1211-1216 |
Publication | Current Science |
ISSN | 0011-3891 |
Date | 2019/10/10 |
Extra | Number: 7 |
DOI | 10.18520/cs/v117/i7/1211-1216 |
Accessed | 11/18/2021, 7:58:26 PM |
Library Catalog | www.i-scholar.in |
Language | en |
Abstract | Daily observations of the number of flowers blossoming per day of passion flower, Passiflora incarnata reveal synchronous pulsed flowering. There seems to be no direct correlation between the observed temporal oscillations in flowering and environmental factors like the change in temperature, humidity and photoperiod. These temporal oscillations are characteristic of an open nonlinear dynamical system and are likely to arise from endogenous factors like the concentration of a florigen and an anti-florigen. A modified Lotka model is shown to mimic the monthly periodicity and the annual recurrence. |
Date Added | 11/18/2021, 7:58:26 PM |
Modified | 11/18/2021, 7:59:15 PM |
Extracted Annotations (11/27/2021, 1:18:47 PM)
"Although the oscillations in the number of flowers blossoming each day with a period of approximately 30 days were evident for 2015 also, the day-to-day fluctuations in the number of flowers blossoming were much more in 2015 than those in 2014, presumably because of the smaller numbers." (p. 1213)
"Since blossoming each year was preceded by a period of no blossoming for about 5-6 months, one could conclude that that there was an induction period before the onset of oscillations, a characteristic of open nonlinear dynamical systems." (p. 1213)
"The fact that temporal oscillations persisted during four different seasons is a clear indication that the mechanism responsible for the oscillations is endogenous and likely biochemical in origin." (p. 1213)
Type | Journal Article |
---|---|
Author | Ana Cláudia Pacheco |
Author | Luís Gustavo Torquato Feba |
Author | Estér Gerônimo Serra |
Author | William Hiroshi Suekane Takata |
Author | Pedro Henrique Gorni |
Author | Camila Hatsu Pereira Yoshida |
URL | https://doi.org/10.1007/s13165-021-00361-3 |
Publication | Organic Agriculture |
ISSN | 1879-4246 |
Date | 2021-06-21 |
Journal Abbr | Org. Agr. |
DOI | 10.1007/s13165-021-00361-3 |
Accessed | 11/18/2021, 3:20:42 PM |
Library Catalog | Springer Link |
Language | en |
Abstract | Organic cultivation of the medicinal species Passiflora incarnata L. is generally a requirement of the herbal industries. However, there is little information about the nutritional requirements of this species as well as about the effects of organic fertilization on its biochemical and physiological performance. This study evaluated the effect of two types of animal manure on the production of biomass and content of phenolic compounds with antioxidant activity in P. incarnata organically grown. The field experiment was carried out under sandy soil condition, with three types of fertilization (control: without fertilization; fertilization with cattle manure; fertilization with poultry manure) and 2 harvest seasons (first harvest at 90 days after seedling transplanting [DAT] and second harvest at 150 DAT). Chemical analysis of the soil was done for compare the initial and final conditions and foliar analysis were made to verify the leaf macronutrients (N, P, K, Ca, Mg, and S) content in each harvest season. The organic fertilization did not influence the production of aerial dry biomass, which presented an average of 1 ton ha−1 for each harvest. There were no differences in leaf macronutrient contents between organically fertilized plants and control plants. The highest leaf contents of P, K, Ca, Mg, and S were observed at 90 DAT. Plants fertilized with cattle and poultry manures presented increases in the total phenol content and antioxidant activity in relation to the control plants (without fertilization), in both harvest seasons (90 and 150 DAT). In conclusion, fertilization of P. incarnata with cattle and poultry manure did not result in dry biomass gains, but promoted an increase in the quality of the raw material (higher phenolic concentration and antioxidant activity). |
Date Added | 11/18/2021, 3:20:42 PM |
Modified | 11/18/2021, 3:20:42 PM |
Extracted Annotations (11/19/2021, 5:23:53 PM)
"Regarding the macronutrient content in the leaves (Table 3), there was no interaction between the types of fertilization and the harvesting seasons. Plants fertilized with cattle and poultry manure showed no differences in leaf macronutrient content in relation to the control plants. Comparing the harvest seasons, the highest leaf contents of P, K, Ca, Mg, and S were observed at 90 DAT." (p. 4)
"The average P. incarnata productivity was about 1000 kg of dry matter ha−1 in each harvest season (Table 4), which is considered appropriate for this species (Fiallo et al. 2000)." (p. 4)
"ered appropriate for this in the aerial dry biomass of P. incarnata after cattle manure fertilization (1128 kg ha−1), which could be agronomically and commercially important for growers, no significant difference was observed in comparison to the control (1052 kg ha−1)." (p. 4)
"t (Table 5).g harvest seasons for each type of fertilization, there was no difference in the total phenolic and flavonoid contents in plants fertilized with cattle manure (Table 5). However, plants fertilized with poultry manure had a lower phenolic and flavonoid content in the second harvest (150 DAT), compared to that in the 90 DAT harvest." (p. 6)
"Based on the results presented herein, and despite the absence of effect on biomass production and nutrient concentration, organic fertilization of P. incarnata with bovine and poultry manures was beneficial in terms of the quality of the raw material, which is essential for the pharmaceutical industry." (p. 7)
"growth in detriment of the synthesis of phenolics. mpound synthesis in P. incarnata fits the carbon-nutrient balance hypothesis with regard to N availability." (p. 8)
"The fertilization of cultivated wild passion fruit (Passiflora incarnata L.) with cattle and poultry manure did not result in dry biomass gains, but promoted an increase in the quality of the raw material (higher phenolic concentration and antioxidant activity)." (p. 8)