Revealing interactions between root phenolic metabolomes and rhizosphere bacterial communities in Populus euphratica plantations

How the root metabolic profiles and rhizosphere bacterial communities of dioecious plants respond to soil properties sex identity is largely unknown. In this study, we analyzed phenolic metabolomes microbiomes Populus euphratica females males in two P. plantations with different reveal relative importance effects, decipher associations certain compounds specific taxa. We found that abundances OTUs metabolites were closely linked identity. Soil main filter influencing euphratica, while sexes their interactions are secondary factors. Differences diversity evenness affected by plant sex, but not properties. Conversely, independent sex. A multiple regression model indicated presence between bacteria Furthermore, all phyla families correlated at least one metabolite. Especially, both Nitrosomonadaceae Cytophagaceae positively salicylic acid. Thus, our study provides new insights into ecological mechanism maintains desert area.