Communities of mucorales (Phylum mucoromycota) in different ecosystems of the Atlantic forest

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Abstract

As primary decomposers of organic matter, mucoralean fungi have an important ecological role in edaphic systems in the Atlantic Forest. However, there is a knowledge gap regarding how communities of Mucorales are structured in soils of Atlantic Forest areas, and whether these communities are influenced by edaphic attributes in this domain. Thus, the current study aimed to understand the influence of edaphic attributes linked to species richness, abundance and composition of Mucorales in dense ombrophilous forest, ‘tabuleiro’ forest, sandbank and mangrove ecosystems located in Pernambuco, Brazil. Altogether, twenty-three taxa, including seven new records, were reported from soil samples from the ecosystems. Species composition was similar among the ecosystems, except for mangrove, while species richness and diversity of Mucorales were highest in dense ombrophilous forest and ‘tabuleiro’. Together the soil variables were responsible for 35.5 % of the variation in species composition, with pH being responsible for 53.32 % and 47.24 % of the variation in richness and abundance of these communities, respectively. These data indicate that pH is the most important attribute in delimiting the structure of mucoralean communities in the study areas, with influence on the composition, richness, and abundance of these fungi.

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Lima, D. X., Souza-Motta, C. M., De Lima, C. L. F., De Souza, C. A. F., Ribeiro, J. R., & De Azevedo Santiago, A. L. C. M. (2020). Communities of mucorales (Phylum mucoromycota) in different ecosystems of the Atlantic forest. Acta Botanica Brasilica, 34(4), 796–806. https://doi.org/10.1590/0102-33062020abb0118

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