Daldinia eschscholtzii (Ascomycota, Xylariaceae) isolated from the Brazilian Amazon: taxonomic features and mycelial growth conditions

Acta Amazonica

Kamila Tomoko Yuyama²  Jadergudson Pereira¹  Cristina Sayuri Maki¹  Noemia Kazue Ishikawa² 

[1] ,Instituto Nacional de Pesquisas da AmazôniaManaus AM

关键词: Daldinia eschscholzii;    fungal diversity;    macrofungus;    occurrence;    Daldinia eschscholzii;    diversidade fúngica;    macrofungos;    ocorrência;   

DOI  :  10.1590/S0044-59672013000100001

来源: SciELO

【 摘 要 】

The Amazon has a high diversity of fungi, including species of the genus Daldinia (Ascomycota, Xylariaceae), which produce secondary metabolites with recognized nematicidal and antimicrobial activity. The ecological role of Daldinia is important, as stromata serve as refuges to many insects and arthropodes, and the fungi contribute to the degradation of vegetable organic matter. The aim of this study was to analyze the taxonomic features and mycelial growth conditions in vitro of a Daldinia specimen collected in the Brazilian Amazon. Morphological and molecular studies of the fungus identified it as D. eschscholtzii. To evaluate mycelial growth, we cultivated the fungus at 20, 25, 30, 35, and 40 °C in malt extract-peptone agar (MEPA), malt extract-peptone (MEP), potato dextrose (PD), and minimum medium (MM). The best mycelial growth occurred at 35 °C, although the greatest amount of biomass was obtained at 25 °C and 30 °C. PD proved to be the best medium for biomass production.

【 授权许可】

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