Protein-based products as resistance inducers: disease control and mechanisms of action

Abstract: Leaf treatments with a protein derivative represent a sustainable strategy in plant protection, because they induce grapevine resistance, and change the structure of leaf microbial communities on grapevine. Plant-protein hydrolysates reduce powdery mildew severity, and their biocontrol activity is affected by the protein source, degree of hydrolysis and peptide composition.