9 results on '"Komura, Dirce Leimi"'
Search Results
2. Historical biogeography and diversification of ringless Amanita (section Vaginatae) support an African origin and suggest niche conservatism in the Americas
- Author
-
Codjia, Jean Evans, I, Sanchez-Ramirez, Santiago, Ebika, Sydney T. Ndolo, Wu, Gang, Margaritescu, Simona, Komura, Dirce Leimi, Oliveira, Jadson J. S., Ryberg, Martin, Tulloss, Rodham E., Yorou, Nourou S., Moncalvo, Jean-Marc, Yang, Zhu L., Codjia, Jean Evans, I, Sanchez-Ramirez, Santiago, Ebika, Sydney T. Ndolo, Wu, Gang, Margaritescu, Simona, Komura, Dirce Leimi, Oliveira, Jadson J. S., Ryberg, Martin, Tulloss, Rodham E., Yorou, Nourou S., Moncalvo, Jean-Marc, and Yang, Zhu L.
- Abstract
Ectomycorrhizal fungi (ECM) sustain nutrient recycling in most terrestrial ecosystems, yet we know little about what major biogeographical events gave rise to present-day diversity and distribution patterns. Given the strict relationship between some ECM lineages and their hosts, geographically well-sampled phylogenies are central to understanding major evolutionary processes of fungal biodiversity patterns. Here, we focus on Amanita sect. Vaginatae to address global diversity and distribution patterns. Ancestral-state-reconstruction based on a 4-gene timetree with over 200 species supports an African origin between the late Paleocene and the early Eocene (ca. 56 Ma). Major biogeographic "out-of-Africa" events include multiple dispersal events to Southeast Asia (ca. 45-21 Ma), Madagascar (ca. 18 Ma), and the current Amazonian basin (ca. 45-36 Ma), the last two likely transoceanic. Later events originating in Southeast Asia involve Nearctic dispersal to North America (ca. 20-5 Ma), Oceania (Australia and New Zealand; ca. 15 Ma), and Europe (ca. 10-5 Ma). Subsequent dispersals were also inferred from Southeast Asia to East Asia (ca. 4 Ma); from North America to East Asia (ca. 11-8 Ma), Southeast Asia (ca. 19-2 Ma), Northern Andes (ca. 15 Ma), and Europe (ca. 15-2 Ma), respectively; and from the Amazon to the Caribbean region (ca. 25-20 Ma). Finally, we detected a significant increase in the net diversification rates in the branch leading to most northern temperate species in addition to higher state-dependent diversification rates in temperate lineages, consistent with previous findings. These results suggest that species of sect. Vaginatae likely have higher dispersal ability and higher adaptability to new environments, in particular compared to those of its sister clade, sect. Caesareae. Overall, the much wider distribution of A. sect. Vaginatae, from pan-tropical to pan-arctic, provides a unique window to understanding niche conservatism across a species-rich clade
- Published
- 2023
- Full Text
- View/download PDF
3. Historical biogeography and diversification of ringless Amanita (section Vaginatae) support an African origin and suggest niche conservatism in the Americas
- Author
-
Codjia, Jean Evans I., primary, Sánchez-Ramírez, Santiago, additional, Ndolo Ebika, Sydney T., additional, Wu, Gang, additional, Margaritescu, Simona, additional, Komura, Dirce Leimi, additional, Oliveira, Jadson J.S., additional, Ryberg, Martin, additional, Tulloss, Rodham E., additional, Yorou, Nourou S., additional, Moncalvo, Jean-Marc, additional, and Yang, Zhu L., additional
- Published
- 2023
- Full Text
- View/download PDF
4. Yeasts found on an ephemeral reproductive caste of the leaf-cutting ant Atta sexdens rubropilosa
- Author
-
Arcuri, Silvio Lovato, Pagnocca, Fernando Carlos, da Paixão Melo, Weilan Gomes, Nagamoto, Nilson Satoru, Komura, Dirce Leimi, and Rodrigues, Andre
- Published
- 2014
- Full Text
- View/download PDF
5. Six new species of Tetrapyrgos (Basidiomycota, Agaricales, Marasmiaceae) from the Brazilian Amazon
- Author
-
KOMURA, DIRCE LEIMI, primary, OLIVEIRA, JADSON JOSÉ SOUZA DE, additional, MONCALVO, JEAN-MARC, additional, MARGARITESCU, SIMONA, additional, and ZARTMAN, CHARLES EUGENE, additional
- Published
- 2020
- Full Text
- View/download PDF
6. Macrofungos Agaricales em áreas de manejo florestal na Amazônia Central
- Author
-
Komura, Dirce Leimi, Moncalvo, Jean-Marc, and Zartman, Charles Eugene
- Subjects
Macrofungos Agaricales ,Taxonomia de Macrofungoa Agaricales - Abstract
Esta tese refere-se ao estudo de macrofungos Agaricales em floresta de terra firme na Estação Experimental de Manejo Florestal do INPA (ZF-2). Durante o período de dois anos, 669 basidiomas (corpos de frutificação) foram coletados nos oito transectos (5 × 50 m cada) localizados em áreas de floresta primária e secundária. Um total de 287 espécies/morfotipos foram identificados durante o estudo. A composição de macrofungos foi diferente entre floresta primária e secundária, diferindo também de acordo com a estação e o ano da coleta. A detecção de macrofungos foi muito baixa na estação seca, principalmente na floresta secundária. Observou-se que, em relação aos substratos (troncos, galhos, folhas e solo), a floresta primária apresentou maior índice de riqueza e diversidade para “solo”. Por outro lado, no substrato “folhas”, estes índices foram maiores para floresta secundária. Os fungos marasmioides e gymnopoides apresentaram um número expressivo de espécies/morfotipos. Em virtude disso, a descrição morfológica usando caracteres macro e microscópicos aliada aos dados moleculares com sequenciamento da região ITS (internal trancribed spacer) foi realizada para estas espécies. Esta etapa do trabalho resultou na descrição de seis espécies novas de Tetrapyrgos (nomes provisórios: T. albonigripes, T. brevipileocystidiata, T. brunneilucida, T. cystidiacrassa, T. pileobrunnea, e T. pseudonigripes) e no registro de nova ocorrência para a Amazônia de T. longicystidiata. Marasmius calvocystidiatus (nome provisório) é descrito como nova espécie, cuja espécie irmã, Marasmius horridulus, é recoletada pela primeira vez após sua descrição. Nove espécies de Marasmius que apresentam a formação de rizomorfos foram descritas, dentre estas, M. cupressiformis, M. populiformis e M. microdendron. Além disso, foram também descritos 37 táxons de Marasmius da seção Marasmius, dos quais 21 em nível de espécie. Em relação às espécies compreendidas em Omphalotaceae (Gymnopus, Marasmiellus e Rhodocollybia), restringiu-se à apresentação de dados moleculares e sinopses. De modo geral, o presente trabalho abre veredas que, espera-se que, possam auxiliar novos estudos interessados na compreensão de macrofungos da Amazônia. This thesis is an ecological and taxonomic account of Agaricales macrofungi in a terra firme forest at the Estação Experimental de Manejo Florestal do INPA (ZF-2). Over a two year period 669 basidiomes (fruiting bodies) were collected in eight transects (5 × 50 m each), located in primary and secondary forests. A total of 290 species/ mophospecies were identified during the study. The macrofungal composition was different among primary and secondary forests, and this difference was also observed among seasons and collection year. In the dry season, the secondary forest presented the lowest macrofungal richness and abundance when compared with primary forest. In relation to substrate type (trunk, branches, leaves and soil), basidiome richness of leaf litter guilds was higher in secondary forest plots, whereas, in contrast, soil guild richness was greater in primary forest. Marasmioid and gymnopoid fungi were the most representative group in this study, and taxonomic descriptions using macro and microscopic characters complemented with molecular data, ITS (internal trancribed spacer), were carried out in these groups. The taxonomic stage resulted in description of six new species for Tetrapyrgos (provisional names: T. albonigripes, T. brevipileocystidiata, T. brunneolucida, T. cystidiacrassa, T. pileobrunnea, and T. pseudonigripes) and T. longicystidiata as newly registered new recording to Amazonia. Marasmius calvocystidiatus (provisional name) is described as new species and its sister species M. horridulus, which just its type specimen was known is recollected. Nine species with rhizomorph are described, among them, M. cupressiformis, M. populiformis e M. microdendron. In addition, 37 taxa of Marasmius are presented, from which 21 are describe at the species level. For the species included in Omphalotaceae (Gymnopus, Marasmiellus and Rhodocollybia), we restrict to the presentation of molecular data and synopses about them. Overall, this work intends to open up paths for future studies of macrofungal taxonomy and ecology in the Amazon basin.
- Published
- 2016
7. Sarcodon atroviridis sensu lato, a stipitate hydnoid from Amazonian campinarana, Roraima, Brazil
- Author
-
Komura, Dirce Leimi, primary, Wartchow, Felipe, additional, and Zartman, Charles E., additional
- Published
- 2015
- Full Text
- View/download PDF
8. Pleurotus ostreatus variedade florida
- Author
-
Komura, Dirce Leimi, Universidade Federal do Paraná. Setor de Ciencias Biológicas. Programa de Pós-Graduaçao em Bioquímica, Carbonero, Elaine Rosechrer, and Iacomini, Marcello
- Subjects
Cogumelos ,Teses ,Pleurotus ostreatus - Published
- 2009
9. Sistemática filogenética de Lactifluus (Russulales) com ênfase em espécies do Norte e Nordeste brasileiro
- Author
-
Silva Filho, Alexandre Gonçalves dos Santos e, Komura, Dirce Leimi, Sulzbacher, Marcelo Aloisio, Almeida, Mariana Cavalcante e, Cortez, Vagner Gularte, and Wartchow, Felipe
- Subjects
Agaricomycetes ,Filogenia ,Russulaceae - fungos ,Taxonomia ,Fungos neotropicais - Abstract
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES Lactifluus (Rusulaceae, Rusulales) reúne fungos que produzem em sua forma reprodutiva basidioma agaricoide, pleurotoide e gasteroide; que se caracterizam principalmente pela exudação de látex. O gênero possui aproximadamente 210 espécies distribuídas principalmente nos trópicos, onde frequentemente faz associação ectomicorrízica com uma ampla variedade de plantas. A diversidade do gênero vem sendo mais bem investigada na África e na Ásia, enquanto permanece ainda pouco explorada na região Neotropical. No Brasil, apenas nove espécies de Lactifluus foram descritas ou reportadas para a Amazônia, Mata Atlântica e Caatinga, e outras dez espécies ainda tratadas como Lactarius necessitam ser revisadas e confirmadas. Com isso, o projeto proposto visou sistematizar e interpretar o gênero Lactifluus a partir de análises morfológicas e moleculares, com o incremento de novas coletas e a revisão de coleções de herbário provenientes dos diferentes biomas das regiões Norte e Nordeste do Brasil. As análises basearam-se em dados morfológicos e moleculares de dez espécimes depositados nos Herbários PACA, INPA JPB, UFRN-Fungos e URM; e de 31 espécimes coletados em diferentes ecossistemas da Amazônia, Caatinga e Mata Atlântica. A revisão morfológica das coleções herborizadas resultou na recombinação de Lactifluus amazonensis, Lf. brasiliensis, Lf. braunii, Lf. mamorensis, Lf. rupestres e Lf. russula; e na designação de um lectótipo para Lf. annulifer, Lf. braunii e Lf. russula. Novas amostras coletadas resultaram na identificação e no sequenciamento de Lf. amazonensis, Lf. annulifer, Lf. dunensis, Lf. lepus, Lf. mamorensis e Lf. neotropicus. Outras 11 espécies são propostas como novas para a ciência, e são elas: Lf. aurantioceraceus nom. prov., Lf. brunneoruber nom. prov., Lf. candidus nom. prov., Lf. flavoscaespitosus nom. prov., Lf. guttulatus sp. nov., Lf. perforatus nom. prov., Lf. piperogalactus sp. nov., Lf. reniformis nom. prov., Lf. restingae nom. prov., Lf. sphatuliformis sp. nov. e Lf. umbilicatus sp. nov. A análise molecular das regiões ITS, LSU e RPB2 do DNA dos espécimes coletados confirmam as espécies citadas como linhagens distintas em Lactifluus, estando elas distribuídas em cinco diferentes clados nos subgêneros Gymnocarpi, Lactariopsis e Pseudogymnocarpi. Além disso, os estudos filogenéticos dos espécimes coletados deram suporte para a delimitação de duas seções: Lf. secão Piperogalacti sec. nov. e Lf. seção Multicepis nom prov.; e para a emenda de Lf. sec. Panuoidei. Lactifluus (Rusulaceae, Rusulales) comprises fungi that produce in their reproductive form agaricoid, pleurotoid and gasteroid basidiomata; mainly characterized by latex exudation. The genus has approximately 210 species distributed mostly in the tropics, where they frequently form ectomycorrhizal association with a wide variety of plants. The diversity of the genus has been better investigated in Africa and Asia, while remains underexplored in Neotropical region. In Brazil, only nine Lactifluus species were described or reported from Amazon, Atlantic Forest and Caatinga, and another ten species still treated as Lactarius needed to be revised and confirmed. Thus, the proposed project aimed to systematize and interpret the genus Lactifluus from morphological and molecular analysis, with the increase of new collections and review of collection of Herbaria from different biomes in the North and Northeast regions of Brazil. The analyzes were based on morphological and molecular data from ten specimens deposited in the PACA, INPA, JPB UFRN-Fungos and URM Herbaria; and also from additional 31 specimens collected in different ecosystems of Amazonia, Caatinga and Atlantic Forest. The morphological review of herborized collections resulted in recombination of Lactifluus amazonensis, Lf. brasiliensis, Lf. braunii, Lf. mamorensis, Lf. russula and Lf. rupestris; and in the designation of one lectotype for Lf. annulifer, Lf. braunii and Lf. russula. New sample resulted in the identification and sequencing of Lf. amazonensis, Lf. annulifer, Lf. dunensis, Lf. lepus, Lf. neotropicus and Lf. mamorensis. Another 11 species were proposed as new to science: Lf. aurantioceraceus nom. prov., Lf. brunneoruber nom. prov., Lf. candidus nom. prov., Lf. flavuscaespitosus nom. prov., Lf. guttulatus sp. nov., Lf. perforatus nom. prov., Lf. piperogalactus sp. nov., Lf. reniformis nom. prov., Lf. restingae nom. prov., Lf. sphatuliformis sp. nov. and Lf. umbilicatus sp. nov. Molecular analysis of the ITS, LSU and RPB2 DNA regions of the collected specimens confirm the distinct lineages of the cited species in Lactifluus, in which are distributed in five different clades in the subgenera Gymnocarpi, Lactariopsis and Pseudogymnocarpi. Furthermore, the phylogenetic analyses of the collected specimens provided support for delimitation of two sections: Lf. section Piperogalacti sect. nov. and Lf. section Multicepis nom prov.; and emendation of Lf. sect. Panuoidei.
- Published
- 2021
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.