Ecological effects of <i>B. subtilis</i> C3 in kiwifruit rhizosphere soil and its prevention and control against root rot disease.

ABSTRACT: As the world's largest producer of kiwifruit, China faces significant yield and quality losses due to the widespread occurrence of kiwifruit root rot. To explore alternative biological control strategies for kiwifruit root rot, this study isolated 11 fungal isolates from diseased kiwifruit roots and identified Fusarium solani as the primary pathogen. Additionally, a biocontrol strain, Bacillus subtilis C3, was isolated from the rhizosphere of healthy kiwifruit and shown to significantly inhibit pathogen growth. The B. subtilis C3 strain effectively controls root rot via multiple mechanisms, including direct antagonism, secretion of antimicrobial proteins, promotion of seedling growth, and induction of plant defense enzymes. In pot and field trials, C3 treatment increas

SUBMITTER: Guoyi X 

PROVIDER: S-EPMC12408652 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature