Analysis of the Effects of Beauveria bassiana Appressorium Formation on Insect Cuticle Metabolism Based on LC-MS.

ABSTRACT: The appressorium is a specialised infection structure formed by Beauveria bassiana during host invasion. This study used sulforaphane to regulate the formation rate of B. bassiana appressoria, evaluated the correlation between appressorium formation and fungal pathogenicity, and explored its impact on insect cuticular metabolism. The results showed that sulforaphane significantly modulated appressorium formation. Spore suspensions with varying appressorium formation rates were injected into Opisina arenosella and Bombyx mori larvae. As the appressorium formation rate increased, B. bassiana exhibited enhanced pathogenicity, leading to accelerated larval mortality. A significant positive correlation (p ≤ 0.05) was observed between appressorium formation and pathogenicity. LC-MS analysis reve

SUBMITTER: Chen J 

PROVIDER: S-EPMC12387848 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature