Microbiome-mediated elite selection by a composite agent enhances peanut symbiosis and yield

The limited establishment of microbial inoculants within native soil communities severely constrains their agricultural efficacy. While composite inoculants show promise for enhancing crop productivity, the general mechanisms by which they influence the root-associated microbiome remain poorly defined. To address this gap, we hypothesized that such inoculants may function through a microbiome-mediated elite selection process. Using the inoculant named Aspergillus-Rhizobia Coupling (ARC) as a model system, this study aimed to elucidate whether and how such a mechanism modulates the rhizosphere microbiome to improve plant performance.

微生物菌剂在原生土壤群落中的定殖能力有限，严重制约了其农业应用效果。尽管复合菌剂在提升作物生产力方面展现出应用潜力，但这类菌剂调控根际相关微生物组的核心机制仍未得到清晰阐释。为填补这一研究空白，本研究提出假说：此类菌剂可能通过微生物组介导的精英筛选过程发挥功能。本研究以曲霉-根瘤菌耦合剂（Aspergillus-Rhizobia Coupling, ARC）为模型体系，旨在阐明此类机制是否能够调控根际微生物组，进而改善植株生长表现。