Diversity of filamentous fungi from soil native vegetation in areas of cerrado

Abstract

Soil is a habitat intrinsic to the development of the biodiversity of microorganisms, including fungi. The municipality of Tangará da Serra - MT is located in the Cerrado region of Brazil. Considering the limited knowledge of fungal biodiversity in this region, the aim of this research was to isolate and identify filamentous fungi from the soil through seasonal surveys in three areas of native vegetation of the cerrado. Three samples were collected during the rainy period and three in the dry period. The samples were collected at a depth of 20 cm of soil, each point was composed 25 grams of soil, and each sample was subjected to serial dilution technique, inoculated in dishes, placed in a bacteriological 28ºC incubator for five days. Were isolated from 136 specimens (25 Mycelia sterilia) dispersed in 17 genera, equivalent to 02 Ascomycota, 04 Zygomycota and 11 Deuteromycota these subdivided into 10 genera of Hyphomycetes and 01 genera of Coelomycetes. The highest abundance occurred in the rainy season (69 specimens) in relation to drought (67 specimens) and richness higher was observed in the dry season (12 genera) in analogy to the rainy season (11 genera).