Impact of burning vegetation on the Cerrado fungi soil

• Autor(a) principal: Sousa, Rosângela Ribeiro de
• Data de Publicação: 2019
• Outros Autores: Leão, Evelynne Urzêdo, Veloso, Ronice Alves, Giongo, Marcos, Santos, Gil Rodrigues dos
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Ciência Florestal (Online)
• Texto Completo: https://periodicos.ufsm.br/cienciaflorestal/article/view/22614
• topic: Microorganisms; Mycoflora; Fire effect; Microrganismos; Micoflora; Efeito do fogo

There are few studies related to the impact of burnings on soil fungi present in the cerrado. The aim of this work was identify the mycoflora in cerrado soil samples before and afer burning process at two depths; observing the interference of this process in the fungi soil inhabitants population. The samples were collected in area, in the municipality of Jaú do Tocantins, State of Tocantins. Bioassays were installed in a completely randomized experimental design, with four replicates and fve treatments, represented by different concentrations of soil solution. The identifcation of the fungi was made at the genus level according to their morphological structures formed in culture medium through optical microscope observations. In the before burning area we observed greatest diversity of genera and fungi colonies. The opposite was found in the area subsequently submitted to the burning process, showing minor fungal colonies. Among the genera identifed, Aspergillus, Penicillium, Cladosporium, Fusarium, Mucor, Pythium and Trichoderma were the most representative colonies. We observed a reduction of 45% approximately in the population of antagonistic fungi. It was found that the use of fre in vegetation negatively influenced microbial populations present in the surface layers of cerrado soil.