Assays of Antifungal Activity of an Antimicrobial Peptide Against Botrytis cinerea

Antimicrobial peptides (AMPs) represent the first line of host immune defense against a broad spectrum of microorganisms. Whether naturally occurring or synthetically designed, these small peptides can potently inhibit microbial growth and remain stable under diverse conditions. Most AMPs act by directly disrupting fungal or bacterial membranes. In this study, we identified a glycine-rich peptide with strong antifungal activity against Botrytis cinerea. We further investigated its mode of action (MOA) and demonstrated its preventive antifungal activity in plants. Our work focuses primarily on the in vitro characterization of AMP features in the context of plant-Botrytis interactions.