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      Bovista (Lycoperdaceae): dois novos registros para o Brasil Translated title: Bovista (Lycoperdaceae): two new records from Brazil

      research-article
      Acta Botanica Brasilica
      Sociedade Botânica do Brasil
      Agaricales, Lycoperdaceae, gasteroid fungi, taxonomy, Agaricales, Lycoperdaceae, gasteromicetos, taxonomia

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          Abstract

          Duas espécies de Bovista ocorrentes em biomas de cerrado e caatinga são descritas: B. pila Berk. & Curt.e B. plumbea Pers. São fornecidas imagens da ornamentação dos esporos em MEV e chave para identificação das espécies do gênero ocorrentes no Brasil.

          Translated abstract

          Two Bovista species occurring in cerrado and caatinga biomes are described: B. Pila Berk. & Curt and B. plumbea Pers. SEM-photographs of spore ornamentation and a key for Brazilian species are provided.

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          Most cited references29

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          Evolution of gilled mushrooms and puffballs inferred from ribosomal DNA sequences.

          Homobasidiomycete fungi display many complex fruiting body morphologies, including mushrooms and puffballs, but their anatomical simplicity has confounded efforts to understand the evolution of these forms. We performed a comprehensive phylogenetic analysis of homobasidiomycetes, using sequences from nuclear and mitochondrial ribosomal DNA, with an emphasis on understanding evolutionary relationships of gilled mushrooms and puffballs. Parsimony-based optimization of character states on our phylogenetic trees suggested that strikingly similar gilled mushrooms evolved at least six times, from morphologically diverse precursors. Approximately 87% of gilled mushrooms are in a single lineage, which we call the "euagarics." Recently discovered 90 million-year-old fossil mushrooms are probably euagarics, suggesting that (i) the origin of this clade must have occurred no later than the mid-Cretaceous and (ii) the gilled mushroom morphology has been maintained in certain lineages for tens of millions of years. Puffballs and other forms with enclosed spore-bearing structures (Gasteromycetes) evolved at least four times. Derivation of Gasteromycetes from forms with exposed spore-bearing structures (Hymenomycetes) is correlated with repeated loss of forcible spore discharge (ballistospory). Diverse fruiting body forms and spore dispersal mechanisms have evolved among Gasteromycetes. Nevertheless, it appears that Hymenomycetes have never been secondarily derived from Gasteromycetes, which suggests that the loss of ballistospory has constrained evolution in these lineages.
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            Neuer versuch einer systematischen eintheilung der schwaümme

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              Screening of basidiomycetes for antimicrobial activities.

              As a part of a screening programme developed to evaluate the antimicrobial activity of basidiomycetes, 317 isolates representing 204 species collected in Spain were screened against a range of human clinical pathogens and laboratory controls. Extracts from 45% of the isolates, representing 109 species, showed antimicrobial activity. Antibacterial activity was more pronounced than antifungal activity. The proportion of extracts from basidiomycetes showing antimicrobial activity was similar to or above that obtained for representative orders of Ascomycetes, such as Pezizales and Xylariales, but lower than that produced by members of the orders Diaporthales, Eurotiales, Hypocreales, Leotiales and Sordariales. Suprageneric taxa (orders and families) did not show pronounced differences in their antimicrobial activities though such differences were observed at the genus level, suggesting that the ability to produce these bioactive compounds is not homogenously distributed amongst the basidiomycetes. Isolates from some species showed large differences in their ability to produce metabolites with antimicrobial activity, possibly reflecting genetic differences at the infraspecific level.
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                Author and article information

                Journal
                abb
                Acta Botanica Brasilica
                Acta Bot. Bras.
                Sociedade Botânica do Brasil (Alta Floresta, MT, Brazil )
                0102-3306
                1677-941X
                December 2005
                : 19
                : 4
                : 899-903
                Affiliations
                [01] Natal RN orgnameUniversidade Federal do Rio Grande do Norte orgdiv1CB orgdiv2Departamento de Botânica, Ecologia e Zoologia Brasil ibaseia@ 123456cb.ufrn.br
                Article
                S0102-33062005000400024 S0102-3306(05)01900424
                a8bf502f-b8a7-4494-acf1-f5eb3cf0729a

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 02 April 2004
                : 31 May 2005
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 29, Pages: 5
                Product

                SciELO Brazil

                Self URI: Texto completo somente em PDF (PT)

                Lycoperdaceae,taxonomia,gasteromicetos,Agaricales,gasteroid fungi,taxonomy

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