Development of a chemotactic SynCom bioorganic fertilizer for biocontrol of bacterial wilt in tobacco fields.

ABSTRACT: Bacterial wilt caused by Ralstonia solanacearum is one of the most severe plant diseases all over the world. Currently, many scientists are using SynCom (synthetic microbial community) to control this disease. However, designing of highly efficient SynCom remains challenging. In this study, we isolated 372 bacteria with different morphologies from the rhizosphere soil of healthy tobacco plants in a diseased field. Based on the antagonistic activity, compatibility, and presence of cheA gene, a marker gene of chemotaxis, we constructed a chemotactic SynCom comprising two Pseudomonas strains and one Bacillus strain. In vitro experiments revealed that vitamin C, propionic acid, and esculetin significantly promoted the growth and antagonistic ability of chemotactic SynCom strains. Next, we opti

SUBMITTER: Liu Y 

PROVIDER: S-EPMC12267373 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature