Investigation of the mechanisms involved in the biocontrol activities of natural products from a marine soil bacterium against rice blast.

ABSTRACT:

Background

Rice blast, caused by Pyricularia oryzae, is a devastating fungal disease threatening global rice production. Overreliance on chemical fungicides has raised environmental concerns and led to resistant strains, necessitating the development of sustainable alternatives. This study integrated marine microbiology and natural antifungal compounds to create eco-friendly alternatives to chemical fungicides for disease management.

Results

We identified Pseudomonas aeruginosa R64 with broad-spectrum antimicrobial activity from mangrove soil in the Mai Po Nature Reserve. The R64 fermentation extract (RFE) exhibited multifaceted inhibition of P. oryzae, suppressing mycelial growth, conidiation, conidial germination and appressorial formation, while disturbing cell wall and m

SUBMITTER: Fei L 

PROVIDER: S-EPMC12074626 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature