Pepper root exudate attenuates snap bean root rot by mediating microbial community remodeling.

ABSTRACT: Intercropping, as a sustainable agricultural practice, has shown potential to reduce soil-borne diseases through rhizosphere microbial community remodeling. However, whether pepper (Capsicum annuum L.) confers this benefit to snap bean (Phaseolus vulgaris L.) remains unclear. This study investigated the disease-suppressive effects of exogenously applied pepper root exudates using pot experiments. In vitro assays were used to validate the biocontrol efficacy of antagonistic bacteria and a key flavonoid metabolite (Chrysin). High-throughput sequencing and untargeted metabolomics were combined to analyze changes in the snap bean rhizosphere microbial community and root exudate profiles under pathogen stress. Compared to the treatment inoculated only with Fusarium solan

SUBMITTER: Li Y 

PROVIDER: S-EPMC12628808 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature