Aim of the study: To evaluate effects a mega-fire on arbuscular mycorrhizal fungi (AMF) community and parameters in soils under Cerrado vegetation. Study area: Chapada dos Veadeiros National Park, Goiás, Brazil. This site suffered biggest fire its history October 10, 2017, with an affected area 66,000 ha. Material methods: We analyzed AMF spore density, roots’ colonization rate, easily extracta...