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Vitor F O Miranda - One of the best experts on this subject based on the ideXlab platform.
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flower nectar trichome structure of carnivorous plants from the genus butterworts Pinguicula l lentibulariaceae
Protoplasma, 2020Co-Authors: Krzysztof Lustofin, Piotr świątek, Vitor F O Miranda, Bartosz J PlachnoAbstract:Pinguicula (Lentibulariaceae) is a genus comprising around 96 species of herbaceous, carnivorous plants, which are extremely diverse in flower size, colour and spur length and structure as well as pollination strategy. In Pinguicula, nectar is formed in the flower spur; however, there is a gap in the knowledge about the nectary trichome structure in this genus. Our aim was to compare the nectary trichome structure of various Pinguicula species in order to determine whether there are any differences among the species in this genus. The taxa that were sampled were Pinguicula moctezumae, P. moranensis, P. rectifolia, P. emarginata and P. esseriana. We used light microscopy, histochemistry, scanning and transmission electron microscopy to address those aims. We show a conservative nectary trichome structure and spur anatomy in various Mexican Pinguicula species. The gross structural similarities between the examined species were the spur anatomy, the occurrence of papillae, the architecture of the nectary trichomes and the ultrastructure characters of the trichome cells. However, there were some differences in the spur length, the size of spur trichomes, the occurrence of starch grains in the spur parenchyma and the occurrence of cell wall ingrowths in the terminal cells of the nectary trichomes. Similar nectary capitate trichomes, as are described here, were recorded in the spurs of species from other Lentibulariaceae genera. There are many ultrastructural similarities between the cells of nectary trichomes in Pinguicula and Utricularia.
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typification of names in the genus Pinguicula l lentibulariaceae
Phytotaxa, 2017Co-Authors: Yoannis Dominguez, Cristina Panfet Valdes, Vitor F O MirandaAbstract:Several names of the genus Pinguicula have been found to need typification or corrections to previous typifications. Analyses of original material and literature related to each name have led to the designation of 17 lectotypes, five neotypes and one epitype. Also five previously cited ‘holotypes’ were corrected to lectotypes. Notes discussing the selection or correction of type specimens are given for each name and, when possible, known isotypes are also cited.
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the chloroplast genome of utricularia reniformis sheds light on the evolution of the ndh gene complex of terrestrial carnivorous plants from the lentibulariaceae family
PLOS ONE, 2016Co-Authors: Saura R Silva, Vitor F O Miranda, Daniel G Pinheiro, Todd P Michael, Yani C A Diaz, Helen A Penha, Camila C Fernandes, Alessandro M VaraniAbstract:Lentibulariaceae is the richest family of carnivorous plants spanning three genera including Pinguicula, Genlisea, and Utricularia. Utricularia is globally distributed, and, unlike Pinguicula and Genlisea, has both aquatic and terrestrial forms. In this study we present the analysis of the chloroplast (cp) genome of the terrestrial Utricularia reniformis. U. reniformis has a standard cp genome of 139,725bp, encoding a gene repertoire similar to essentially all photosynthetic organisms. However, an exclusive combination of losses and pseudogenization of the plastid NAD(P)H-dehydrogenase (ndh) gene complex were observed. Comparisons among aquatic and terrestrial forms of Pinguicula, Genlisea, and Utricularia indicate that, whereas the aquatic forms retained functional copies of the eleven ndh genes, these have been lost or truncated in terrestrial forms, suggesting that the ndh function may be dispensable in terrestrial Lentibulariaceae. Phylogenetic scenarios of the ndh gene loss and recovery among Pinguicula, Genlisea, and Utricularia to the ancestral Lentibulariaceae cladeare proposed. Interestingly, RNAseq analysis evidenced that U. reniformis cp genes are transcribed, including the truncated ndh genes, suggesting that these are not completely inactivated. In addition, potential novel RNA-editing sites were identified in at least six U. reniformis cp genes, while none were identified in the truncated ndh genes. Moreover, phylogenomic analyses support that Lentibulariaceae is monophyletic, belonging to the higher core Lamiales clade, corroborating the hypothesis that the first Utricularia lineage emerged in terrestrial habitats and then evolved to epiphytic and aquatic forms. Furthermore, several truncated cp genes were found interspersed with U. reniformis mitochondrial and nuclear genome scaffolds, indicating that as observed in other smaller plant genomes, such as Arabidopsis thaliana, and the related and carnivorous Genlisea nigrocaulis and G. hispidula, the endosymbiotic gene transfer may also shape the U. reniformis genome in a similar fashion. Overall the comparative analysis of the U. reniformis cp genome provides new insight into the ndh genes and cp genome evolution of carnivorous plants from Lentibulariaceae family.
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dominguez y panfet valdes c m miranda v f o 2014 Pinguicula filifolia subsp alba lentibulariaceae a new subspecies with an extremely restricted distribution in pinar del rio cuba phytotaxa 158 1 85 92
Phytotaxa, 2015Co-Authors: Yoannis Dominguez, Cristina Panfet Valdes, Vitor F O MirandaAbstract:The carnivorous plant Pinguicula filifolia occurs in western Cuba and shows a restricted distribution due to habitat specificity associated with poor wet soils. Its populations are distributed mainly in south Pinar del Rio (Cuba) and in Isla de la Juventud. Plants from one isolated location in NW Pinar del Rio shows morphological differences with respect to the rest of the known populations observed in nature. Subsequent detailed morphological analysis of specimens led to the description of Pinguicula filifolia subsp. alba as a new subspecies. It differs from the typical subspecies in several reproductive traits involving flower, fruit and seed characters and is so far known only from the type locality.
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inter and intra specific diversity of cuban Pinguicula lentibulariaceae based on morphometric analyses and its relation with geographical distribution
Plant Ecology & Diversity, 2014Co-Authors: Yoannis Dominguez, Saura R Silva, Cristina Panfet Valdes, Vitor F O MirandaAbstract:Background: Phenotypic variations have been observed in populations of west Cuban Pinguicula species. Such populations occur in patches under different ecological conditions associated with specialised habitats and separated by geographical and ecological barriers, which can lead to morphological differentiation.Aims: To analyse morphological diversity among species and populations of Cuban Pinguicula; and to test if morphological variability is associated with geographical distribution and distance between populations.Methods: We sampled a total of eight populations of P. albida, P. cubensis and P. filifolia and tested for morphometric differences among them by Principal Component Analysis (PCA) and analysis of variance (ANOVA) based on 31 quantitative traits. We also assessed the geographical isolation with respect to morphological distance.Results: The studied species showed high morphological variability at both species and population level. Reproductive characteristics appeared to be more promissory ...
Raúl E. Alcalá - One of the best experts on this subject based on the ideXlab platform.
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spatial and temporal differences in the community structure of endophytic fungi in the carnivorous plant Pinguicula moranensis lentibulariaceae
Fungal Ecology, 2021Co-Authors: Jesus E Ruedaalmazan, Victor Manuel Hernandez, Jorge Rene Alcalamartinez, Andrea Fernandezduque, Mariana Ruizaguilar, Raúl E. AlcaláAbstract:Abstract According to our hypothesis, temporal heterogeneity due to seasonality (summer rosette vs. winter rosette) instead of spatial heterogeneity, showed higher influence on both the community and the infection rate of endophytes present in the carnivorous plant Pinguicula moranensis. In addition, the infection rate of endophytic fungi isolated from roots was higher than that observed in leaves although the endophytic community was similar between both tissues. Overall, we isolated endophytic fungi members of Dothideomycetes, Leotimocyetes, Eurotiomycetes and Sordariomycetes. P. moranensis harbors at least 10 genera, seven of them (Astrocystis sp., Bipolaris sp., Cercospora sp., Coniochaeta sp., Ijuhya sp., Neomollisia sp. and Ochroconis sp.) reported for the first time in carnivorous plants. We advanced some implications about the role that these endophytes could be playing in this carnivorous plant, illustrating a certain level of specificity in the endophytic community of fungi present in leaves and roots.
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Reproductive ecology of the carnivorous plant Pinguicula moranensis (Lentibulariaceae).
Plant biology (Stuttgart Germany), 2017Co-Authors: S. G. Villegas, Raúl E. AlcaláAbstract:The interaction of plants with pollinators can be a determinant of their reproductive fitness. However, information about the pollination biology of carnivorous plants is scarce. To increase knowledge of reproductive ecology of carnivorous plants we focused on Pinguicula moranensis. Specifically, based on the presence of large, zygomorphic and spurred flowers, we predicted higher reproductive fitness in cross-pollinated than in self-pollinated flowers. Within a plot of 51 m2 we characterised the reproductive phenology, including flower lifespan and stigmatic receptivity. We identified pollinators and their movement patterns within the plot. Breeding system was experimentally evaluated using hand-pollination (i.e. autonomous, self- and cross-pollination). Flowers of P. moranensis were visited by long-tongued pollinators, mainly members of the Lepidoptera. Hand-pollination experiments confirmed our prediction and suggest that flower traits might favour cross-pollination. We mainly discuss the implications of the patchy distribution of plants and behaviour of pollinators on gene movement in this plant species, as pollination between genetically related individuals could be occurring.
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Effect of light environment on intra-specific variation in herbivory in the carnivorous plant Pinguicula moranensis (Lentibulariaceae)
Journal of Plant Interactions, 2016Co-Authors: Jocelyn Suárez-piña, Jesús E. Rueda-almazán, Luz María Ayestarán, Raúl E. AlcaláAbstract:ABSTRACTIdentifying the factors that affect a plant’s probability of being found and damaged by herbivores has been a central topic in the study of herbivory. Although herbivory could have important negative consequences on carnivorous plants, their interaction with herbivores remains largely unexplored. We evaluated the effect of spatial variation in light environment (sunny, shade and full-shade sites) on the pattern of leaf herbivory and florivory of the carnivorous plant Pinguicula moranensis. Plants’ overall probability of leaf damage was high (74.24%). Mean herbivory was four times higher in the sunny and shade sites than the observed in the full-shade site. Nearly 8% of plants suffered damage to reproductive structures, although the probability of florivory was similar among sites. Discussion addressed the inter-site variation in mean herbivory considering the effect of light exposure and the impact that herbivory could have on fitness components of this carnivorous plant.
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Genetic Structure of the Carnivorous Plant Pinguicula moranensis (Lentibulariaceae) on the Transvolcanic Mexican Belt
Biochemical Genetics, 2012Co-Authors: Raúl E. Alcalá, Cesar A DominguezAbstract:Most species of Pinguicula present a montane distribution with populations located at high altitudes. In this context, we proposed that populations of Pinguicula species could be genetically differentiated even at a local scale. This study supported that prediction, as a RAPD-based analysis of molecular variance revealed a high degree of genetic structure ( Φ _st = 0.157, P = 0.001) and low gene flow ( N _m = 1.0) among four central populations of Pinguicula moranensis in Mexico, with a maximum geographic separation of about 140 km. The four populations also exhibited high levels of genetic diversity (mean Nei’s genetic diversity = 0.3716; % polymorphism = 95.45%). The evolutionary implications of the genetic structure found in P . moranensis for other species in the genus are discussed in the context of the naturally fragmented distribution and a set of life history traits shared by most Pinguicula species that could promote geographic isolation and limited gene flow.
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An experimental test of the defensive role of sticky traps in the carnivorous plant Pinguicula moranensis (Lentibulariaceae)
Oikos, 2010Co-Authors: Raúl E. Alcalá, Néstor A. Mariano, Felipe Osuna, César A. AbarcaAbstract:It has been sustained that the sticky traps present in some carnivorous plants could have evolved from ancestor species bearing leaves covered with secreting glands formerly associated with a defensive function. In this study, we evaluated the interaction of the carnivorous plant Pinguicula moranensis with its insect herbivores to assess the defensive role of the glandular trichomes. Firstly, we estimated the standing levels of insect herbivory in field conditions. We also evaluated the response of herbivore insects to the removal of the secreting glands from the leaves of P. moranensis in field and laboratory conditions. The mean damage was 1.61 %, and half of the sampled plants showed no damage. The low level of herbivory in the field suggests that P. moranensis has an efficient defense ability. In the field experiment, after 25 d of exposure to natural damage, treated glandless plants received 18 times more damage than control plants. In the laboratory, the consumption of glandless tissue was three times higher during a 6 h evaluation period. Overall, our results provide evidence that secreting trichomes in Pinguicula are not only associated with prey capture but also have a defensive role. The defensive function could have favored the evolution of the sticky traps, the most extended prey-capture strategy among carnivorous plants.
Sergio Zamudio - One of the best experts on this subject based on the ideXlab platform.
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embriologia de las estructuras reproductoras masculinas del genero Pinguicula l lentibulariaceae
Boletin De La Sociedad Botanica De Mexico, 2017Co-Authors: Silvia Espinosamatias, Sergio Zamudio, Judith Y MarquezguzmanAbstract:In order to gain greater knowledge about the embryology of the genus Pinguicula (Lentibulariaceae), a study of the development of male structures was conducted for a representative species of each subgenus. Embryological features concerning the development of the anther wall, microsporogenesis, microgametogenesis and pollen grains are described for the three species. These were generally consistent between them, and this evidence strongly supports the hypothesis that it is a monophyletic group. It does not support the division of the genus Pinguicula into three subgenera: Isoloba, Pinguicula and Temnoceras proposed by Casper (1966).
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dos especies nuevas de Pinguicula lentibulariaceae de la sierra madre oriental mexico
Acta Botanica Mexicana, 2005Co-Authors: Sergio ZamudioAbstract:Two new species of Pinguicula from the Sierra Madre Oriental, Mexico, are described and illustrated. Pinguicula ibarrae from the vicinity of Tlanchinol, Hidalgo, belongs to the section Heterophyllum, and Pinguicula martinezii from Llano Chiquito, Queretaro, is in the section Agnata, both of subgenus Isoloba. Emphasis is placed on the great diversity of Pinguicula found in the physiographic province of the Sierra Madre Oriental, which concentrates the largest amount of species on a world-wide scale. Emphasis is also placed on the tendency of some Mexican species to inhabit desertscrub and tropical deciduous forest.
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Pinguicula conzattii lentibulariaceae una especie nueva del estado de oaxaca mexico
Acta Botanica Mexicana, 2003Co-Authors: Sergio Zamudio, Johan Van MarmAbstract:Pinguicula conzattii is described as a new species to science, collected between Santo Tomas Ocotepec and Santiago Nuyoo, district of Tlaxiaco, Oaxaca. Plants of this species are cultivated in Europe under the name of Pinguicula “Santiago Nuyoo Pass”. This taxon belongs to section Heterophyllum, subgenus Isoloba and is compared with P. mirandae with which it is related. It is noteworthy by its pubescence on both sides of “winter leaves”.
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notas sobre la identidad de Pinguicula moranensis h b k con la descripcion de una variedad nueva
Acta Botanica Mexicana, 1999Co-Authors: Sergio ZamudioAbstract:Based on the type specimen the identity of Pinguicula moranensis H.B.K. is defined with more precision. It is characterized by its lax and extended "winter rosettes", with spathulate leaves rounded or obtuse at the apex; it grows mainly on limestone. The locality called El Puente de Dios is probably the site of origin of the type specimens. The population growing around the ancient Mina de Moran in the Sierra de Pachuca, Hidalgo, is described as a new variety called P. moranensis var. neovolcanica. It ranges along the Eje Volcanico Transversal, and is characterized by their compact "winter rosettes" with lanceolate to oblong-lanceolate leaves of acute apex.
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una nueva especie gipsicola de Pinguicula lentibulariaceae de nuevo leon mexico
Acta Botanica Mexicana, 1992Co-Authors: Sergio Zamudio, Alexander LuxAbstract:A new species of Pinguicula from gypsum soils of the state of Nuevo Leon, Mexico is described for the first time: P. immaculate subg. Temnoceras. A new locality for P. rotundiflora Studnicka is given and its type locality is corrected, which is situated in Tamaulipas, not in Oaxaca.
Yoannis Dominguez - One of the best experts on this subject based on the ideXlab platform.
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typification of names in the genus Pinguicula l lentibulariaceae
Phytotaxa, 2017Co-Authors: Yoannis Dominguez, Cristina Panfet Valdes, Vitor F O MirandaAbstract:Several names of the genus Pinguicula have been found to need typification or corrections to previous typifications. Analyses of original material and literature related to each name have led to the designation of 17 lectotypes, five neotypes and one epitype. Also five previously cited ‘holotypes’ were corrected to lectotypes. Notes discussing the selection or correction of type specimens are given for each name and, when possible, known isotypes are also cited.
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dominguez y panfet valdes c m miranda v f o 2014 Pinguicula filifolia subsp alba lentibulariaceae a new subspecies with an extremely restricted distribution in pinar del rio cuba phytotaxa 158 1 85 92
Phytotaxa, 2015Co-Authors: Yoannis Dominguez, Cristina Panfet Valdes, Vitor F O MirandaAbstract:The carnivorous plant Pinguicula filifolia occurs in western Cuba and shows a restricted distribution due to habitat specificity associated with poor wet soils. Its populations are distributed mainly in south Pinar del Rio (Cuba) and in Isla de la Juventud. Plants from one isolated location in NW Pinar del Rio shows morphological differences with respect to the rest of the known populations observed in nature. Subsequent detailed morphological analysis of specimens led to the description of Pinguicula filifolia subsp. alba as a new subspecies. It differs from the typical subspecies in several reproductive traits involving flower, fruit and seed characters and is so far known only from the type locality.
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inter and intra specific diversity of cuban Pinguicula lentibulariaceae based on morphometric analyses and its relation with geographical distribution
Plant Ecology & Diversity, 2014Co-Authors: Yoannis Dominguez, Saura R Silva, Cristina Panfet Valdes, Vitor F O MirandaAbstract:Background: Phenotypic variations have been observed in populations of west Cuban Pinguicula species. Such populations occur in patches under different ecological conditions associated with specialised habitats and separated by geographical and ecological barriers, which can lead to morphological differentiation.Aims: To analyse morphological diversity among species and populations of Cuban Pinguicula; and to test if morphological variability is associated with geographical distribution and distance between populations.Methods: We sampled a total of eight populations of P. albida, P. cubensis and P. filifolia and tested for morphometric differences among them by Principal Component Analysis (PCA) and analysis of variance (ANOVA) based on 31 quantitative traits. We also assessed the geographical isolation with respect to morphological distance.Results: The studied species showed high morphological variability at both species and population level. Reproductive characteristics appeared to be more promissory ...
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Pinguicula filifolia subsp alba lentibulariaceae a new subspecies with an extremely restricted distribution in pinar del rio cuba
Phytotaxa, 2014Co-Authors: Yoannis Dominguez, Cristina Panfet Valdes, Vitor F O MirandaAbstract:The carnivorous plant Pinguicula filifolia occurs in western Cuba and shows a restricted distribution due to habitat specificity associated with poor wet soils. Its populations are distributed mainly in south Pinar del Rio (Cuba) and in Isla de la Juventud. Plants from one isolated location in NW Pinar del Rio shows morphological differences with respect to the rest of the known populations observed in nature. Subsequent detailed morphological analysis of specimens led to the description of Pinguicula filifolia subsp. alba as a new subspecies. It differs from the typical subspecies in several reproductive traits involving flower, fruit and seed characters and is so far known only from the type locality.
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new features of cuban endemic Pinguicula filifolia lentibulariaceae and considerations on its habitat and ecology
Flora, 2012Co-Authors: Yoannis Dominguez, Vitor F O Miranda, Cristina Panfet ValdesAbstract:Abstract Pinguicula filifolia C. Wright ex Griseb. is a carnivorous plant endemic in western Cuba. New features on the generation time habit and leaf morphology of this species are described and illustrated emphasizing its heteromorphic habit, based on studying living plants in nature and vouchers. A comparison of morphological characters of leaves among P. filifolia and its close relatives P. albida C. Wright ex Griseb. and P. cubensis Urquiola & Casper from west Cuba reveals morphological characters such as vertical position of the leaves, filiform blade, circinate apex and absence of edge curling. The description of new characteristics, such as an annual aestival habit and the presence of two kinds of carnivorous leaves during its growth cycle, emphasize the unique position of this species among Cuban taxa, all of them, so far, considered as “tropical homophyllous” within the genus.
Lorenzo Peruzzi - One of the best experts on this subject based on the ideXlab platform.
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disentangling phylogenetic relationships in a hotspot of diversity the butterworts Pinguicula l lentibulariaceae endemic to italy
PLOS ONE, 2016Co-Authors: Olga De Castro, Gianluigi Bacchetta, Michele Innangi, Antonietta Di Maio, Bruno Menale, Mathias M Pires, Virgile Noble, G Gestri, Fabio Conti, Lorenzo PeruzziAbstract:The genus Pinguicula (Lentibulariaceae) consists of about 100 carnivorous species, also known as butterworts. Eleven taxa are endemic to Italy, which represents a biodiversity hotspot for butterworts in Europe. The aim of our study was to provide a phylogenetic framework for the Italian endemics, in order to: a) investigate the relationships between species in this group; b) evaluate their actual taxonomic value. To achieve this, we analysed all the taxa endemic to Italy, along with several other species, by means of ITS nrDNA analysis. Our results clarify the relationships between Italian endemics and other Pinguicula taxa identifying a basal polytomy defined by five clades. All of the Italian endemics (with the exception of P. lavalvae) fall within a single large clade, which includes P. vulgaris and allied species. Among them, P. poldinii represents the most isolated lineage. Other taxa show strong molecular similarities and form a single subclade, although their taxonomic ranks can be retained. Pinguicula lattanziae sp. nov., seemingly endemic to Liguria (NW Italy), is also described.
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a new diploid butterwort species Pinguicula lentibulariaceae from sardinia
Phytotaxa, 2014Co-Authors: Gianluigi Bacchetta, Marcello Cannas, Lorenzo PeruzziAbstract:A new diploid species belonging to Pinguicula sect. Pinguicula is described from Sardinia, an island where no butterwort was previously reported from. The taxonomic relationship of P. sehuensis sp. nov. with other species is briefly discussed.
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a new butterwort species Pinguicula lentibulariaceae from northern apennine italy
Plant Biosystems, 2013Co-Authors: Lorenzo Peruzzi, Gaia GestriAbstract:A morphometric and taxonomic study of Pinguicula in Northern Apennine was carried out. A new species belonging to sect. Pinguicula, previously referred erroneously to P. vulgaris L. and/or P. leptoceras Rchb., is here described as P. christinae sp. nov. The taxonomic relationship of P. christinae with other octoploid species, such as P. apuana Casper and Ansaldi, P. fiorii Tammaro and Pace, and P. vulgaris s.l. (including also its central Italian endemic subspecies) is discussed.
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Pinguicula lentibulariaceae in central italy taxonomic study
Annales Botanici Fennici, 2006Co-Authors: Fabio Conti, Lorenzo Peruzzi, Gran Sasso, S Colombo, Museo BotanicoAbstract:1) Centro Ricerche Floristiche dell’Appennino (Parco Nazionale del Gran Sasso e Monti della Laga — Dipartimento di Scienze Ambientali dell’Universita di Camerino), S. Colombo, 67021 Barisciano (AQ), Italy (e-mail: fabio.conti@unicam.it) 2) Dipartimento di Biologia, Orto Botanico e Museo Botanico, Unita di Botanica Generale e Botanica Sistematica, Universita di Pisa, via Luca Ghini 5, 56126 Pisa, Italy (e-mail: lperuzzi@biologia.unipi.it)