Journal
BRAZILIAN JOURNAL OF MICROBIOLOGY
Volume 46, Issue 4, Pages 1027-1035Publisher
SPRINGER
DOI: 10.1590/S1517-838246420140548
Keywords
fungal communities; seasonality; rainforest; diversity; fungal ecology
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Funding
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
- Programa de Posgraduacao em Botanica - PPGBot/UEFS (CNPq/MCTI)
- Programa de Pesquisa em Biodiversidade - PPBio Semiarido
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We investigated the composition and structure of fungal communities associated with leaf litter generated by Clusia nemorosa and Vismia guianensis that belong to phylogenetically-related botanical families and exist together in a remnant of the Atlantic Forest in Bahia, Brazil. Samplings were conducted during wet (June2011) and dry (January2013) seasons in Serra da Jiboia. The fungi were isolated using particle filtration and the 1,832 isolates represented 92 taxa. The wet season yielded the largest number of isolates (1,141) and taxa (76) compared with the dry season (641 isolates and 37 taxa). The richness and diversity of fungal species associated with C. nemorosa (64 taxa, Simpson = 0.95) were higher compared with those of V. guianensis (59 taxa, Simpson = 0.90). Analysis of similarity (ANOSIM) revealed significant variations in the composition and community structure of fungi isolated from the two plants as a function of seasons. In contrast, nonmetric multidimensional scaling (NMDS) analysis show that the seasonality was an important influence on the distribution of fungal species. However, the populations of the saprobic fungal communities were dynamic, and several factors may influence such communities in the Atlantic Forest.
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