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Journal articles on the topic 'Classification – Passiflora'

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Published: 4 June 2021
Last updated: 13 February 2022

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1

ESQUERRE-IBAÑEZ, BORIS. "A new species of Passiflora section Granadillastrum (Passifloraceae) from Jaén, Peru." Phytotaxa 298, no. 1 (2017): 89. http://dx.doi.org/10.11646/phytotaxa.298.1.10.

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Passiflora jaenensis B.Esquerre is described and illustrated as a species new to science and endemic to Peru. According to a recent classification of Passiflora its placement within subgenus Passiflora, section Granadillastrum is proposed. This new species is morphologically similar to Passiflora sprucei Masters (1872: 568) and Passiflora subulata Masters (1872: 567) but it differs in features of the leaves, flowers and geographic distribution. Information about its habitat and preliminary distribution are included here.
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2

Hilgenhof, Rebecca. "Passiflora Subgenus Astrophea." Sibbaldia: the International Journal of Botanic Garden Horticulture, no. 11 (October 29, 2013): 25–52. http://dx.doi.org/10.24823/sibbaldia.2013.49.

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This paper examines an unusual group of Passiflora L., providing an overview of all aspects related to the members of Passiflora subgenus Astrophea (DC.) Mast. It gives an account of their classification, morphology, distribution, habitats and ecology in order to provide a better understanding of the species included in this group. These examinations are factored into the recommendations forsuccessful ex situ cultivation which is generally regarded as difficult. More depth of information on cultivation is provided for the four species most commonly found under cultivation: Passiflora jussieui Feuillet, P. lindeniana Planch. ex Triana & Planch., P. macrophylla Spruce ex Mast. and P. pittieri Mast. Despite the problems these plants present in cultivation they are rewarding additios to any plant collection which in future is likely to be of great importance due to many being threatened in their natural habitats. This project is an extract from the author’s dissertation that was written for the Kew Diploma in Horticulture in 2012.
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3

Esquerre-Ibañez, Boris. "A new species of Passiflora supersection Tacsonia (Passifloraceae) from Amazonas, Northern Peru." Phytotaxa 202, no. 4 (2015): 266. http://dx.doi.org/10.11646/phytotaxa.202.4.4.

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A new species, Passiflora kuethiana (Passifloraceae) is described and illustrated from Cordillera Calla Calla, Amazonas Department, Northern Peru. This species shares morphological characteristics more related with Passiflora tripartita and Passiflora runa on stipules and flowers but differs mainly from the former in the size, shape and color of the involucre, peduncles length and arrangement, and the latter in shape and margin of stipules. This species is considered as a new endemic to the Peruvian flora. Its location within the section Elkea according to the new classification of Passiflora is proposed. Comparative data of related species and a key to the species of the section Elkea from Northern Peru are too added.
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4

Crochemore, Maria Lúcia, Hugo Bruno Correa Molinari, and Luiz Gonzaga Esteves Vieira. "Genetic diversity in passion fruit (Passiflora spp.) evaluated by RAPD markers." Brazilian Archives of Biology and Technology 46, no. 4 (2003): 521–27. http://dx.doi.org/10.1590/s1516-89132003000400005.

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The objective of this study was to characterize the genetic diversity within a Passiflora collection by PCR-RAPD markers. Genetic analysis was performed in 70 accessions, representing 11 species of the genus Passiflora. The use of only five primers produced 136 reproducible polymorphic bands. The hierarchical classification showed high levels of dissimilarities between and within the species studied. A clear separation was obtained among species and accessions of P. edulis and P. edulis f. flavicarpa, which were forms of the high commercial value species. The fingerprints produced from the studied genotypes would allow the identification of improved varieties/populations in an easy, fast and inexpensive manner.
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5

MEZZONATO-PIRES, ANA CAROLINA. "Passiflora bernaccii (Passifloraceae s.s.), a new species from Acre, Brazil." Phytotaxa 372, no. 3 (2018): 229. http://dx.doi.org/10.11646/phytotaxa.372.3.6.

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Passiflora bernaccii is described and illustrated here as a new species belonging to P. subgenus Astrophea section Pseudoastrophea from the Brazilian Amazon Rainforest. The new species has similarities with P. hexagonocarpa, P. rhamnifolia and P. tessmannii, but differs mainly by the shape of the outer filaments of the corona, shape of the operculum and presence of trochlea. Palynological support for the classification is also discussed.
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6

MEZZONATO-PIRES, ANA CAROLINA, CLÁUDIA BARBIERI FERREIRA MENDONÇA, MICHAELE ALVIM MILWARD-DE-AZEVEDO, and VANIA GONÇALVES-ESTEVES. "The systematic value of pollen morphology of Passiflora subgenus Astrophea (Passifloraceae)." Phytotaxa 298, no. 1 (2017): 1. http://dx.doi.org/10.11646/phytotaxa.298.1.1.

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This study investigates and reports the pollen morphology of a selected group of Passiflora species of the subgenus Astrophea. We found that species can be grouped into five pollen types, four of which had been previously documented. The fifth new pollen type was observed in P. macrophylla. This pollen type completely lacks muri, and possesses spines and bacula on a granulate surface. All of the species of the subgenus Astrophea studied have the same type of aperture: 6-colporate with 3 lalongate endoapertures, one for each pair of ectoapertures. Multivariate analyses performed with quantitative characters showed a great degree of similarity between type I, II and V pollen, and individual distinction of type III and type IV. The pollen characters observed do not support the currently accepted taxonomic classification for the Passiflora subgenus Astrophea, but are useful for delimiting species.
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7

Plotze, Rodrigo de Oliveira, Maurício Falvo, Juliano Gomes Pádua, et al. "Leaf shape analysis using the multiscale Minkowski fractal dimension, a new morphometric method: a study with Passiflora (Passifloraceae)." Canadian Journal of Botany 83, no. 3 (2005): 287–301. http://dx.doi.org/10.1139/b05-002.

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A new method is proposed for the extraction of morphometric characteristics of plant leaf structures. A sample of 10 species of the genus Passiflora (P. coriacea Juss., P. foetida L., P. miersii Mast., P. organensis Gardner, P. pohlii Mast., P. suberosa L., P. amethystina J.C. Mikan, P. caerulea L., P. gibertii N.E.Br., P. maliformis L.) was used in an experiment to test the method. This genus shows a wide range of leaf forms, but there are some species pairs or groups whose morphological similarity makes their correct identification difficult. The multiscale function of the Minkowski fractal dimension was applied to digital images of leaves to generate complexity measures of their internal (veins) and external (leaf outline) form. The results of the leaf characteristic extraction method, as well as its potential as the basis for an identification mechanism, are discussed for the 10 species. The method was very accurate in correctly differentiating among species, since no leaf was erroneously identified. A small number of leaves per species was sufficient for establishing a characteristic pattern for each of them, which constitutes an important advantage of the method in the recognition and classification procedure.Key words: image processing, fractal dimension, plant taxonomy, morphometry, Passiflora.
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8

DE OLIVEIRA PLOTZE, RODRIGO, and ODEMIR MARTINEZ BRUNO. "AUTOMATIC LEAF STRUCTURE BIOMETRY: COMPUTER VISION TECHNIQUES AND THEIR APPLICATIONS IN PLANT TAXONOMY." International Journal of Pattern Recognition and Artificial Intelligence 23, no. 02 (2009): 247–62. http://dx.doi.org/10.1142/s0218001409007156.

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This paper proposes a new methodology to extract biometric features of plant leaf structures. Combining computer vision techniques and plant taxonomy protocols, these methods are capable of identifying plant species. The biometric measurements are concentrated in leaf internal forms, specifically in the veination system. The methodology was validated with real cases of plant taxonomy, and eleven species of passion fruit of the genus Passiflora were used. The features extracted from the leaves were applied to the neural network system to perform the classification of species. The results showed to be very accurate in correctly differentiating among species with 97% of success. The computer vision methods developed can be used to assist taxonomists to perform biometric measurements in plant leaf structures.
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9

Silva, Fernando Higino de Lima e., Alexandre Pio Viana, Rulfe Tavares Ferreira, Jôsie Cloviane de Oliveira Freitas, Jardel Oliveira Santos, and Daniele Lima Rodrigues. "Measurement of genetic diversity in progenies of sour passion fruit by ward-mlm methodology: a strategy for heterotic group formation." Ciência e Agrotecnologia 38, no. 3 (2014): 240–46. http://dx.doi.org/10.1590/s1413-70542014000300003.

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Passion fruit belongs to the family Passifloraceae, and the genus Passiflora is regarded the most economically important. The present study aimed to quantify genetic diversity among progenies of sour passion fruit, in order to define potential heterotic groups, based on morpho-agronomic descriptors, using the Ward-MLM procedure. It is useful for generation advancement in the passion fruit breeding program, via recurrent selection, under development at the Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF). For such, 81 full-sib progenies belonging to the third recurrent selection cycle (C03) were assessed. Twenty-three descriptors were used, five of which were qualitative and 18, quantitative. The quantitative and qualitative variables were analyzed simultaneously using the Ward-MLM procedure for the composition of groups. The likelihood function determined that five was the ideal number of groups. The Ward-MLM classification strategy for morpho-agronomic data analysis allowed the formation of five groups into 26, 5, 15, 16 and 19 progenies. A certain distance was observed for group III, compared to the other groups while groups I, II, IV and V showed approximation. This greater distance of group III compared to the other groups may indicate crosses, aiming at the exploitation of heterosis, for the pyramiding of favorable alleles for traits of interest. The Ward-MLM statistical procedure was a useful tool to detect genetic divergence and group progenies using simultaneously quantitative and qualitative variables.
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10

Cauz-Santos, Luiz Augusto, Zirlane Portugal da Costa, Caroline Callot, et al. "A Repertory of Rearrangements and the Loss of an Inverted Repeat Region in Passiflora Chloroplast Genomes." Genome Biology and Evolution 12, no. 10 (2020): 1841–57. http://dx.doi.org/10.1093/gbe/evaa155.

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Abstract Chloroplast genomes (cpDNA) in angiosperms are usually highly conserved. Although rearrangements have been observed in some lineages, such as Passiflora, the mechanisms that lead to rearrangements are still poorly elucidated. In the present study, we obtained 20 new chloroplast genomes (18 species from the genus Passiflora, and Dilkea retusa and Mitostemma brevifilis from the family Passifloraceae) in order to investigate cpDNA evolutionary history in this group. Passiflora cpDNAs vary in size considerably, with ∼50 kb between shortest and longest. Large inverted repeat (IR) expansions were identified, and at the extreme opposite, the loss of an IR was detected for the first time in Passiflora, a rare event in angiosperms. The loss of an IR region was detected in Passiflora capsularis and Passiflora costaricensis, a species in which occasional biparental chloroplast inheritance has previously been reported. A repertory of rearrangements such as inversions and gene losses were detected, making Passiflora one of the few groups with complex chloroplast genome evolution. We also performed a phylogenomic study based on all the available cp genomes and our analysis implies that there is a need to reconsider the taxonomic classifications of some species in the group.
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11

PARTEKA, LETÍCIA MARIA, LETICIA DE MATTOS, JAIANA RICHARDO, BRUNA SAVIATTO FAGUNDES, and ADRIANO SILVÉRIO. "Passiflora coelestis, a new species of Passiflora section Dysosmia (Passifloraceae sensu stricto) from Southern Brazil." Phytotaxa 516, no. 2 (2021). http://dx.doi.org/10.11646/phytotaxa.516.2.2.

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Passiflora coelestis is morphologically and anatomically described from living material as a new species belonging to the section Dysosmia, supersection Stipulata and subgenus and genus Passiflora. The species occurs in Araucaria Moist Forest, a phytophysiognomy of the Atlantic Forest biome. The section has been characterized as one of the most taxonomically complex groups within Passiflora. Passiflora coelestis is related to species within the Dysosmioides group and is similar to P. campanulata, differing mainly in the stipules, petiole, bracts, and corona filaments. The new species is morphologically compared with taxa of the section; moreover, additional anatomic, palynological and molecular data are also discussed with regard to taxonomic classification.
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12

TEIXEIRA, LETÍCIA MAGALHÃES, LÍSIAS COELHO, and NILVANIRA DONIZETE TEBALDI. "CHARACTERIZATION OF Fusarium oxysporum ISOLATES AND RESISTANCE OF PASSION FRUIT GENOTYPES TO FUSARIOSIS." Revista Brasileira de Fruticultura 39, no. 3 (2017). http://dx.doi.org/10.1590/0100-29452017415.

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ABSTRACT Passion fruit wilt, caused by Fusarium spp., is one of the most severe diseases for this crop. Although yellow passion fruit is propagated mostly by seeds, the use of rootstocks tolerant to early death could be a management strategy for cultivation in areas with disease history. Thus, this study characterized Fusarium isolates obtained in Triângulo Mineiro and determined the most suitable genotype to use for grafting to reduce losses caused by this pathogen. Mycelial growth and sporulation of Fusarium isolates, in three different growth media, was quantified by measuring colony diameter and by counting the conidia in Neubauer chamber 10 days after growth in malt extract-agar 2%, PDA or CMA at 22 ± 3ºC and 12 hours lighting. Five days later the color of the colonies was evaluated. The experimental design was a 4x3 factorial completely randomized design, with five replications. Characterization of morphological structures of isolates was done with minimum cultivation in Malt extract-agar 2% amended with sterilized soil + sand (1:1). Three Passiflora species and two seedling types were used as rootstock to evaluate field resistance to fusariosis, in a randomized block design, as a 3x2 factorial, with three Passiflora species (P. alata, P. setacea and P. edulis) and two seedling types (ungrafted or grafted with P. edulis). The medium PDA was the least favorable for mycelial growth of the isolates. The best medium for conidium production was Malt extract and the most sporulating isolates were Fus-01 and Fus-02. Isolate color varied from white to pink to violet. Only Fus-02 and Fus-04 formed macro and microconidia. Shape, dimensions and septa number of macroconidia and microconidia, as well as the presence of characteristic monophyalides allowed the classification of all isolates as Fusarium oxysporum f.sp. passiflorae. Passiflora alata and P. setacea, used as rootstocks for P. edulis in the field, were resistant to fusariosis. Despite its low survival, P. edulis grafted on itsef, promoted similar growth of secondary branches as P. setacea in the field.
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13

Ożarowski, Marcin, and Tomasz M. Karpiński. "Extracts and Flavonoids of Passiflora Species as Promising Anti-inflammatory and Antioxidant Substances." Current Pharmaceutical Design 26 (May 26, 2020). http://dx.doi.org/10.2174/1381612826666200526150113.

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: There is increasing interest in evaluating anti-inflammatory activities of plant substances such as extracts and flavonoid rich fractions. A promising source of new medicinal drugs may be species from the Passifloraceae family. The most interesting group of principal chemical compounds in Passiflora species are polyphenolic compounds, including flavonoids due to their antioxidant activity demonstrated in various studies (quercetin, rutin, apigenin, luteolin, chrysin, and Cglycosylflavones i.e., vitexin, isovitexin, orientin, isoorientin). However, each extracts from Passiflora spp. as multi-component mixtures should be estimated for chemical composition (in the standardization process) and their activity using in vitro and in vivo tests. The current standard for drug discovery and development from plants indicates that only collective assessment allows estimating plant substances by definition of the origin of raw materials and their quality, methods of extractions, and metabolite profiles. Increasingly, due to complex phytochemical procedures to obtain extracts, individual flavonoid compounds are also tested for anti-inflammatory action. However, it should be emphasized that various sources of potential new drugs from plant origin are not mutually exclusive, but are complementary. A review of bibliographic data includes the following information about Passiflora species, such as distribution, classification, phytochemical compounds, antiinflammatory activity of extracts, anti-inflammatory activity of flavonoids, and antioxidant potential. The review allows concluded that extracts and flavonoids (mainly quercetin, apigenin, and vitexin) from Passiflora spp. can be a valuable source of anti-inflammatory and anti-oxidative medications for the prevention and treatment of many diseases, which occur with complex inflammatory processes.
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14

Oliveira, Ivan Sérgio da Silva, Vênia Camelo de Souza, Sara Beatriz da Costa Santos, et al. "Floral Biology and Pollen Viability of Passiflora edulis Sims." Journal of Experimental Agriculture International, September 27, 2019, 1–9. http://dx.doi.org/10.9734/jeai/2019/v41i130386.

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Yellow passion fruit is a native tropical fruit tree whose cultivation has evolved very rapidly in Brazil; therefore, studies on the ecology of reproduction are needed. The study of pollen viability is an important tool to observe the male potential of the species. The objective of this study was to estimate pollen viability, pollen/ovule ratio and floral biology of Passiflora edulis Sims in organic cultivation located in Bananeiras, PB, and Brazilian. The study was developed in a completely randomized design, using ten flower buds in the pre-anthesis. The analyses performed in the biology laboratory of the Center of Human, Social and Agrarian Sciences of the Federal University of Paraiba. For the pollen viability analysis, all the anthers of the ten flower buds were used, five anthers per flower, which were crushed on a glass slide and with the aid of Alexander dye, the purple pollen grains were considered viable and the green ones unviable. To measure flower morphology and biometrics, a digital pachymeter, analytical balance and ruler were used. Five stamens form the androecium; the fillets are of short length inserted below the ovary. The flowers have three stigmas with an average height of 16.5mm, an average of 32,136 viable pollens, 58 unviable pollen grains and 140 ovules per ovary, having a pollen viability of 99.8% and a pollen/ovule ratio of approximately 95/1 pollen grains per ovule. Their structures are uniform, with no biometric variations in the amount of petals, sepals, anthers and stigma length. Alexander's reactive dye was effective in staining the pollen grains of yellow passion fruit. The pollen/ovule ratio indicates that this species performs facultative autogamy as well; however, this classification alone is not sufficient to affirm its reproductive system.
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15

Casalan, Florie C. "Leukocyte and Thrombocyte Increasing Activity and Nutritional Value of Formulated Suspension from Yellow Passion Fruit (Passiflora edulis f. flavicarpa, Passifloraceae) Juice." UIC Research Journal 18, no. 1 (2012). http://dx.doi.org/10.17158/225.

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Using Swiss mice and male rabbits as test animals, the researcher studied the leukocyte and the thrombocyte increasing activity of the fresh Yellow Passion Fruit juice. This study was conducted by using two parameters: increase in the leukocyte count and increase in the thrombocyte count. The Acute Oral Toxicity Level of the Yellow Passion Fruit Juice was considered non-toxic as it is labeled Category 5 according to Organization for Economic Cooperation and Development (OECD) Globally Harmonized Classification of Toxicants. The Approximate Effective Dose (AED) of the fruit juice on increasing the leukocytes and thrombocytes ranged from 3.98 to 15.84 mg/kg while the effective dose, ED50 of the population of the male rabbits of the Yellow Passion Fruit juice leukocyte increasing activity was at 11.29 mg/kg body weight and the ED50 in thrombocyte increasing activity was at 11.93 mg/kg body weight. The t-test analysis revealed a significant difference before and after treatment of Yellow Passion Fruit juice suspension on leukocytes while there was no significant difference before and after treatment of Yellow Passion Fruit juice suspension on thrombocytes of male rabbits. It can be inferred that the formulated Passion Fruit juice suspension only possesses an increasing activity on leukocyte count.
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