P7G: Rhizosphere microbiome and meta-transcriptome of TSPs (TreeDì_P7G Rhizosphere microbiome)

Tree species identity, plant successional stage, plant diversity level, and mycorrhizal type affect the soil microbial community composition. Plant genus diversity was also found to be an important predictor of ectomycorrhizal fungal community composition in subtropical forests. Both arbuscular and ectomycorrhizal fungal diversity and identity are known to influence tree species diversity and composition. Plant diversity level influences fungal community composition and the plant beta-diversity predicts the beta-diversity of fungal functional groups including mycorrhizal fungi. Despite the number of recent advances in the rhizosphere and endosphere microbiome research, there is a limited knowledge on the inter- and intra-kingdom variation in community composition, co-occurrence network patterns, the functional gene profiles, and the drivers of these network patterns and functional gene profiles in the interaction zones of mono- and hetero-specific tree species pairs. Objectives: Assess how the rhizosphere microbiome composition of mono- and hetero-specific TSPs change within and across diversity levels Study the patterns of rhizosphere metagenome/ metatranscriptome profiles of TSPs across diversity levels Identify the drivers and assess the relationships of the microbial co-occurrence network patterns and the functional gene profiles of mono- and hetero-specific TSPs across diversity levels