Soil microbes drive the effect of plant species and genotypic diversity interaction on productivity.

The effect of plant species and genotypic diversity on productivity has been well documented but little is known about the contribution interaction between diversity. Since influence soil microorganisms diversity-productivity relationship increasingly recognized, we investigated potential interactions diversity, microbes. We hypothesized that non-additive effects could be microbe-driven. set up pea wheat monocultures mixtures in a growth chamber, varying for their levels under three different microbial contexts. assessed shoot root biomass production, mineral nitrogen content described bacterial communities. found involving both was higher than expected considering additive Rather synergy two positive observed mixture compensated negative Regarding influence, were all driven by community as no pre-sterilised soil. Our study suggests shaped three-way Thus, plant-microbe plant-plant determinant relationship.