Biocontrol Potential of Rhizospheric Bacillus Strains Against Sclerotinia minor Jagger Causing Lettuce Drop.

ABSTRACT: Phytopathogenic Sclerotinia minor Jagger causes lettuce drop, a destructive soil-borne disease. As potential biocontrol agents for this disease, 2 of 31 bacterial strains isolated from soil samples from fields containing S. minor Jagger were identified using in vitro antagonistic assays against S. minor Jagger. Bioactivity experiments showed that Bac20 had higher inhibitory activity against S. minor Jagger than Bac45. Based on 16S rRNA sequences and phylogenetic analysis of a combination of sequences from gyrA, rpoB, purH, polC, and groEL, Bac20 and Bac45 were identified as Bacillus velezensis and Bacillus subtilis, respectively. Lipopeptide compounds produced by each strain were identified using matrix-assisted l

SUBMITTER: Xu L 

PROVIDER: S-EPMC11767259 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature