Plant genotype and seasonality drive fine changes in olive root microbiota

Due to global warming, the cultivation range of many crops is extending at higher altitudes and latitudes exposing plants new climatic environmental conditions, as early spring frosts. To face these issues in a sustainable agriculture context, innovative technologies, use biostimulants manipulation plant microbiota, are emerging. Here, we focused on anarea Northern Italy which olive tree cultivation, traditionally economically-relevant item Mediterranean agriculture, rapidly inland cold-temperate areas. We conducted an assessment prokariotic fungal microbiota present root endosphere cold-hardy cold-susceptible Italian cultivar (Leccino Frantoio, respectively) along winter seasons. Microbiota assembly diversity analysis revealed that microbiotas more than 20 years-old were highly stable with few variations occurring across seasons genotypes. Notably, detected fine seasonal-dependent community adjustments genotype, involved beneficial microbes pathogens. Moreover, different patterns abundance found for arbuscular mycorrhizal fungi their endobacteria revealing presence intimate tripartite interactions. Overall, results suggest healthy could provide useful tool help trees those related climate change.