Screening, isolation and characterization of endophytic bacteria from upland Rice for antagonism against <i>Fusarium graminearum</i>.

ABSTRACT: Endophytic bacteria play an important role in inhibiting plant pathogens. This study aimed to screen endophytic bacteria from upland rice with antagonistic activity against Fusarium graminearum, evaluated their antagonistic potential against F. graminearum, assessed their anti-fungal substances, and elucidated the underlying mechanisms. Some methods were performed, including dual-culture antagonism assays, lipopeptide extraction, identification of antifungal compounds via LC-MS and HS-GC-MS, metabolomic analysis, and microscopic observation. Two endophytic bacterial strains, URR1 and URR2, were identified as Pseudomonas sp. and Bacillus subtilis, respectively. Dual-culture antagonism assays demonstrated that both strains exhibited strong inhibitory activity against F. gram

SUBMITTER: Hu YP 

PROVIDER: S-EPMC12753520 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature