POPULAÇÃO FÚNGICA ENCONTRADA EM PASTAGENS CULTIVADA NO CERRADO GOIANO

Abstract

Forages are one of the main food bases for animal production in Brazil, which has the largest bovine herd in the world. With that, there is a concern about diseases and pathologies in forages that can cause significant losses of pastures and directly affect the animals' food. Therefore, the objective of this project is to identify and characterize the fungal microbiota, naturally found in pastures, among the different forage species located in the agrostological field of the Instituto Federal Goiano Campus Ceres-GO. In a DIC, approximately 100 grams of five different types of forage were sampled, in the dry season and in the rainy season, respectively (in a 5x2 split plot). Four repetitions were performed for each treatment. After serial dilution of the collected material, 1 ml aliquots were inoculated in plates containing Potato Dextrose Agar culture medium added with glucose and chloramphenicol for isolation of fungi and yeasts. The identification of developed colonies was carried out. The presence of entomopathogenic and pathogenic fungi was observed, mainly in the rainy season, with emphasis on the forage Ipyporã, which showed greater colonization of fungi. The fungal microbiota found in forages is essential for the development of relevant research for agriculture, eight fungal genera were identified in the studied forages, which aim to use such microorganisms for the development of products to control pathogens and bring benefits. The fungi found in this work have a great potential for use in several areas.