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Andreas Fleischmann - One of the best experts on this subject based on the ideXlab platform.
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Typification and authorship of Drosera intermedia (Droseraceae)
TAXON, 2020Co-Authors: Andreas Fleischmann, Paulo Minatel GonellaAbstract:Drosera intermedia is lectotypified with the herbarium specimen on which the type drawing in the 1798 protologue was based. The collection history of the specimen, the history of the botanical drawing as original material, and the correct nomenclatural author and publication date of the name are presented based on historical notes and literature. Additionally, the global distribution of the species is given, including the first record from Africa.
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chemical evidence for hybridity in drosera Droseraceae
Biochemical Systematics and Ecology, 2016Co-Authors: Jan Schlauer, Andreas FleischmannAbstract:Naphthoquinone patterns found in Drosera hybrids between quinone-heterogenous parent species are reported here for the first time. Quinone patterns are constant in and characteristic for all taxa investigated. Each investigated parent species contains only one quinone isomer (either plumbagin or 7-methyljuglone), whereas all investigated hybrids between quinone-heterogenous parent species contain both isomers at almost equal concentrations, which indicates co-dominant heredity resulting from expression of both parental loci affecting regioselectivity in the biosynthesis of these acetogenic metabolites. This allows predictions on hybridity (and possibly on parentage) in some taxa of the genus.
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Drosera magnifica (Droseraceae): the largest New World sundew, discovered on Facebook
Phytotaxa, 2015Co-Authors: Paulo Minatel Gonella, Fernando Rivadavia, Andreas FleischmannAbstract:Drosera magnifica , a microendemic sundew discovered on a single mountain top in eastern Minas Gerais (southeastern Brazil), is described here as a new species for science. Regarded as the largest New World sundew and one of the three largest Drosera species, it was just recently discovered through photographs posted on the social network Facebook. A detailed description, remarks on ecology, habitat, and conservation, a distribution map, line drawings, and photographs are provided, as well as a comparison between the related taxa ( D . graminifolia and D. spiralis ). The species is considered Critically Endangered, according to the IUCN Red List categories and criteria.
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Arthropods associated with the carnivorous plant Drosera latifolia (Droseraceae) in an area of Atlantic Forest (southeastern Brazil)
Acta Biológica Paranaense, 2014Co-Authors: Jane Costa, Andreas Fleischmann, Claudia Leal Rodrigues, Arlindo Serpa Filho, Sandor Christiano Buys, Fernando RivadaviaAbstract:Arthropods associated with the carnivorous plant Drosera latifolia (Droseraceae) in an area of Atlantic Forest (southeastern Brazil)
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Elucidating the controversial Drosera montana complex (Droseraceae): a taxonomic revision
2014Co-Authors: Fernando Rivadavia, Paulo Minatel Gonella, Paulo Takeo Sano, Andreas FleischmannAbstract:author for correspondence The species of the affinity of Drosera montana (Droseraceae) are reviewed taxonomically and the complex is redefined t
James R. Manhart - One of the best experts on this subject based on the ideXlab platform.
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Drosera capillaris (Native) 6
2011Co-Authors: James R. ManhartAbstract:Drosera capillaris, leaf close-up. Family Droseraceae, Subclass Dilleniidae. Origin: Native.
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Drosera capillaris (Native) 3
2011Co-Authors: James R. ManhartAbstract:Drosera capillaris, leaf close-up. Family Droseraceae, Subclass Dilleniidae. Origin: Native.
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Drosera capensis (Cultivated) 2
2011Co-Authors: James R. ManhartAbstract:Drosera capensis, leaf - close-up. Family Droseraceae, Subclass Dilleniidae. Origin: Cultivated.
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Drosera brevifolia (Native) 8
2011Co-Authors: James R. ManhartAbstract:Drosera brevifolia, plants, with Lycopodiella appressa. Family Droseraceae, Subclass Dilleniidae. Origin: Native.
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Drosera brevifolia (Native) 7
2011Co-Authors: James R. ManhartAbstract:Drosera brevifolia, plants, with Utricularia cornuta. Family Droseraceae, Subclass Dilleniidae. Origin: Native.
Fernando Rivadavia - One of the best experts on this subject based on the ideXlab platform.
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Drosera magnifica (Droseraceae): the largest New World sundew, discovered on Facebook
Phytotaxa, 2015Co-Authors: Paulo Minatel Gonella, Fernando Rivadavia, Andreas FleischmannAbstract:Drosera magnifica , a microendemic sundew discovered on a single mountain top in eastern Minas Gerais (southeastern Brazil), is described here as a new species for science. Regarded as the largest New World sundew and one of the three largest Drosera species, it was just recently discovered through photographs posted on the social network Facebook. A detailed description, remarks on ecology, habitat, and conservation, a distribution map, line drawings, and photographs are provided, as well as a comparison between the related taxa ( D . graminifolia and D. spiralis ). The species is considered Critically Endangered, according to the IUCN Red List categories and criteria.
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Arthropods associated with the carnivorous plant Drosera latifolia (Droseraceae) in an area of Atlantic Forest (southeastern Brazil)
Acta Biológica Paranaense, 2014Co-Authors: Jane Costa, Andreas Fleischmann, Claudia Leal Rodrigues, Arlindo Serpa Filho, Sandor Christiano Buys, Fernando RivadaviaAbstract:Arthropods associated with the carnivorous plant Drosera latifolia (Droseraceae) in an area of Atlantic Forest (southeastern Brazil)
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Elucidating the controversial Drosera montana complex (Droseraceae): a taxonomic revision
2014Co-Authors: Fernando Rivadavia, Paulo Minatel Gonella, Paulo Takeo Sano, Andreas FleischmannAbstract:author for correspondence The species of the affinity of Drosera montana (Droseraceae) are reviewed taxonomically and the complex is redefined t
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elucidating the controversial drosera montana complex Droseraceae a taxonomic revision
Phytotaxa, 2014Co-Authors: Fernando Rivadavia, Paulo Minatel Gonella, Paulo Takeo Sano, Andreas FleischmannAbstract:The species of the affinity of Drosera montana (Droseraceae) are reviewed taxonomically and the complex is redefined to include only D. montana , D. tentaculata , D. tomentosa var. tomentosa , D. tomentosa var. glabrata , and D. spirocalyx . The latter is a newly described narrow endemic species from the Serra do Cipo in central Minas Gerais state, Brazil. The morphological characters distinguishing these five taxa from each other and from other similar species are discussed together with habitat and ecological information. Detailed illustrations, photographs, distribution maps and an identification key are provided. A lectotype for D. tomentosa is here designated.
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is drosera meristocaulis a pygmy sundew evidence of a long distance dispersal between western australia and northern south america
Annals of Botany, 2012Co-Authors: Fernando Rivadavia, V F O De Miranda, G Hoogenstrijd, Fabio Pinheiro, Gunther Heubl, Andreas FleischmannAbstract:† Background and aims South America and Oceania possess numerous floristic similarities, often confirmed by morphological and molecular data. The carnivorous Drosera meristocaulis (Droseraceae), endemic to the Neblina highlands of northern South America, was known to share morphological characters with the pygmy sundews of Drosera sect. Bryastrum, which are endemic to Australia and New Zealand. The inclusion of D. meristocaulis in a molecular phylogenetic analysis may clarify its systematic position and offer an opportunity to investigate character evolution in Droseraceae and phylogeographic patterns between South America and Oceania. † Methods Drosera meristocaulis was included in a molecular phylogenetic analysis of Droseraceae, using nuclear internal transcribed spacer (ITS) and plastid rbcL and rps16 sequence data. Pollen of D. meristocaulis was studied using light microscopy and scanning electron microscopy techniques, and the karyotype was inferred from root tip meristem. † Key Results The phylogenetic inferences (maximum parsimony, maximum likelihood and Bayesian approaches) substantiate with high statistical support the inclusion of sect. Meristocaulis and its single species, D. meristocaulis, within the Australian Drosera clade, sister to a group comprising species of sect. Bryastrum. A chromosome number of 2n ¼ approx. 32‐ 36 supports the phylogenetic position within the Australian clade. The undivided styles, conspicuous large setuous stipules, a cryptocotylar (hypogaeous) germination pattern and pollen tetrads with aperture of intermediate type 7‐8 are key morphological traits shared between D. meristocaulis and pygmy sundews of sect. Bryastrum from Australia and New Zealand. † Conclusions The multidisciplinary approach adopted in this study (using morphological, palynological, cytotaxonomic and molecular phylogenetic data) enabled us to elucidate the relationships of the thus far unplaced taxon D. meristocaulis. Long-distance dispersal between southwestern Oceania and northern South America is the most likely scenario to explain the phylogeographic pattern revealed.
Paulo Minatel Gonella - One of the best experts on this subject based on the ideXlab platform.
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Typification and authorship of Drosera intermedia (Droseraceae)
TAXON, 2020Co-Authors: Andreas Fleischmann, Paulo Minatel GonellaAbstract:Drosera intermedia is lectotypified with the herbarium specimen on which the type drawing in the 1798 protologue was based. The collection history of the specimen, the history of the botanical drawing as original material, and the correct nomenclatural author and publication date of the name are presented based on historical notes and literature. Additionally, the global distribution of the species is given, including the first record from Africa.
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Drosera magnifica (Droseraceae): the largest New World sundew, discovered on Facebook
Phytotaxa, 2015Co-Authors: Paulo Minatel Gonella, Fernando Rivadavia, Andreas FleischmannAbstract:Drosera magnifica , a microendemic sundew discovered on a single mountain top in eastern Minas Gerais (southeastern Brazil), is described here as a new species for science. Regarded as the largest New World sundew and one of the three largest Drosera species, it was just recently discovered through photographs posted on the social network Facebook. A detailed description, remarks on ecology, habitat, and conservation, a distribution map, line drawings, and photographs are provided, as well as a comparison between the related taxa ( D . graminifolia and D. spiralis ). The species is considered Critically Endangered, according to the IUCN Red List categories and criteria.
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Elucidating the controversial Drosera montana complex (Droseraceae): a taxonomic revision
2014Co-Authors: Fernando Rivadavia, Paulo Minatel Gonella, Paulo Takeo Sano, Andreas FleischmannAbstract:author for correspondence The species of the affinity of Drosera montana (Droseraceae) are reviewed taxonomically and the complex is redefined t
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elucidating the controversial drosera montana complex Droseraceae a taxonomic revision
Phytotaxa, 2014Co-Authors: Fernando Rivadavia, Paulo Minatel Gonella, Paulo Takeo Sano, Andreas FleischmannAbstract:The species of the affinity of Drosera montana (Droseraceae) are reviewed taxonomically and the complex is redefined to include only D. montana , D. tentaculata , D. tomentosa var. tomentosa , D. tomentosa var. glabrata , and D. spirocalyx . The latter is a newly described narrow endemic species from the Serra do Cipo in central Minas Gerais state, Brazil. The morphological characters distinguishing these five taxa from each other and from other similar species are discussed together with habitat and ecological information. Detailed illustrations, photographs, distribution maps and an identification key are provided. A lectotype for D. tomentosa is here designated.
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Drosera quartzicola (Droseraceae), a new and threatened species from the Serra do Cipó, Brazil
Phytotaxa, 2011Co-Authors: Fernando Rivadavia, Paulo Minatel GonellaAbstract:Drosera quartzicola (Droseraceae), a new species from the Serra do Cipo highlands, Minas Gerais state, southeastern Brazil, is described here. The morphological characters that distinguish it from similar Drosera species are discussed, together with habitat information, detailed illustrations, and its conservation status. A key to the Drosera species of the Serra do Cipo is provided.
Vitor F. O. Miranda - One of the best experts on this subject based on the ideXlab platform.
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a chemometry of aldrovanda vesiculosa l waterwheel Droseraceae populations
Molecules, 2020Co-Authors: Bartosz J Plachno, Lubomir Adamec, Maciej Strzemski, Slawomir Dresler, Kamila Wojaskrawczyk, Ireneusz Sowa, Anna Danielewicz, Vitor F. O. MirandaAbstract:The genus Aldrovanda is a Palaeogene element containing a single extant species, Aldrovanda vesiculosa L. This aquatic carnivorous herb has a very wide range of distribution, natively covering four continents; however, it is a critically endangered aquatic plant species worldwide. Previous studies revealed that A. vesiculosa had an extremely low genetic variation. The main aim of the present paper is to explore, using chemometric tools, the diversity of 16 A. vesiculosa populations from various sites from four continents (Eurasia, Africa, Australia). Using chemometric data as markers for genetic diversity, we show the relationships of 16 A. vesiculosa populations from various sites, including four continents. Phytochemical markers allowed the identification of five well-supported (bootstrap > 90%) groups among the 16 populations sampled. The principal component analysis data support the idea that the strongly related African (Botswana) and Australian (Kimberley, NT, NW Australia) populations are the most distant ones, separated from the European and Asian ones. However, considering the five Australian populations sampled, three are nested within the Eurasian group. The chemometric data are correlated positively with the geographical distances between the samples, which suggests a tendency toward isolation for the most distant populations.
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Plant or fungal sequences? An alternative optimized PCR protocol to avoid ITS (nrDNA) misamplification
Brazilian Archives of Biology and Technology, 2010Co-Authors: Vitor F. O. Miranda, Antonio Furlan, Vanderlei G. Martins, Mauricio BacciAbstract:The nuclear ribosomal DNA internal transcribed spacers (ITS1 and ITS2) from leaves of Drosera (Droseraceae) were amplified using "universal" primers. The analysis of the products demonstrated most samples were a molecular mixture as a result of unsuccessful and non-specific amplifications. Among the obtained sequences, two were from Basidiomycota fungi. Homologous sequences of Basidiomycota were obtained from GenBank database and added to a data set with sequences from Drosera leaves. Parsimony analysis demonstrated that one sequence was amplified from an Ustilaginomycetes fungus, and another from a Heterobasidiomycetes. Possibly these fungi were associated to leaves of Drosera, and not because of samples contamination. In order to provide optimization and a better specificity of PCR (polymerase chain reaction), a very successful method was demonstrated using dimethyl sulfoxide (DMSO) and bovine serum albumin (BSA) in reactions.
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Plant or fungal sequences? An alternative optimized PCR protocol to avoid ITS (nrDNA) misamplification
Brazilian Archives of Biology and Technology, 2010Co-Authors: Vitor F. O. Miranda, Martins, Vanderlei Geraldo [unesp], Furlan, Antonio [unesp], Bacci Junior, Mauricio [unesp]Abstract:Os espaçadores internos transcritos do DNA nuclear ribossomal (ITS1 e ITS2) de folhas de Drosera (Droseraceae) foram amplificados com o emprego de iniciadores universais. A análise demonstrou que a maior parte das amostras continha uma mistura resultante de amplificações não-específicas. Dentre as sequências de DNA obtidas, duas delas foram de fungos basidiomicetos. Sequências homólogas foram obtidas do GenBank e analisadas junto às sequências obtidas de folhas de Drosera. Através das análises filogenéticas de máxima parcimônia foi possível identificar uma seqüência como sendo de um Ustilaginomycetes e outra de Heterobasidiomycetes (Basidiomycota). Possivelmente esses organismos estavam associados às folhas de Drosera e assim não sejam resultantes de contaminação. Com o objetivo de otimizar e buscar uma melhor especificidade das reações de PCR, um protocolo bem sucedido foi demonstrado com o uso de dimetilsulfóxido (DMSO) e soroalbumina bovina (BSA).The nuclear ribosomal DNA internal transcribed spacers (ITS1 and ITS2) from leaves of Drosera (Droseraceae) were amplified using universal primers. The analysis of the products demonstrated most samples were a molecular mixture as a result of unsuccessful and non-specific amplifications. Among the obtained sequences, two were from Basidiomycota fungi. Homologous sequences of Basidiomycota were obtained from GenBank database and added to a data set with sequences from Drosera leaves. Parsimony analysis demonstrated that one sequence was amplified from an Ustilaginomycetes fungus, and another from a Heterobasidiomycetes. Possibly these fungi were associated to leaves of Drosera, and not because of samples contamination. In order to provide optimization and a better specificity of PCR (polymerase chain reaction), a very successful method was demonstrated using dimethyl sulfoxide (DMSO) and bovine serum albumin (BSA) in reactions
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Plant or fungal sequences? An alternative optimized PCR protocol to avoid ITS (nrDNA) misamplification
Brazilian Archives of Biology and Technology, 2010Co-Authors: Vitor F. O. Miranda, Martins, Vanderlei Geraldo, Furlan Antonio, Bacci Junior MauricioAbstract:Os espaçadores internos transcritos do DNA nuclear ribossomal (ITS1 e ITS2) de folhas de Drosera (Droseraceae) foram amplificados com o emprego de iniciadores universais. A análise demonstrou que a maior parte das amostras continha uma mistura resultante de amplificações não-específicas. Dentre as sequências de DNA obtidas, duas delas foram de fungos basidiomicetos. Sequências homólogas foram obtidas do GenBank e analisadas junto às sequências obtidas de folhas de Drosera. Através das análises filogenéticas de máxima parcimônia foi possível identificar uma seqüência como sendo de um Ustilaginomycetes e outra de Heterobasidiomycetes (Basidiomycota). Possivelmente esses organismos estavam associados às folhas de Drosera e assim não sejam resultantes de contaminação. Com o objetivo de otimizar e buscar uma melhor especificidade das reações de PCR, um protocolo bem sucedido foi demonstrado com o uso de dimetilsulfóxido (DMSO) e soroalbumina bovina (BSA).The nuclear ribosomal DNA internal transcribed spacers (ITS1 and ITS2) from leaves of Drosera (Droseraceae) were amplified using universal primers. The analysis of the products demonstrated most samples were a molecular mixture as a result of unsuccessful and non-specific amplifications. Among the obtained sequences, two were from Basidiomycota fungi. Homologous sequences of Basidiomycota were obtained from GenBank database and added to a data set with sequences from Drosera leaves. Parsimony analysis demonstrated that one sequence was amplified from an Ustilaginomycetes fungus, and another from a Heterobasidiomycetes. Possibly these fungi were associated to leaves of Drosera, and not because of samples contamination. In order to provide optimization and a better specificity of PCR (polymerase chain reaction), a very successful method was demonstrated using dimethyl sulfoxide (DMSO) and bovine serum albumin (BSA) in reactions.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP
