
On 4th September, Oscar Zárate Martínez successfully defended his thesis "Soil microbial communities in changing landscapes: spatiotemporal patterns in arbuscular mycorrhizal fungi" and earned a PhD degree in Botany and Mycology. The opponent was Karina Engelbrecht Clemmensen from the Swedish University of Agricultural Sciences, and Oscar's supervisors were Meelis Pärtel and Maarja Öpik (Soil Ecology Workgroup).