UV‐exposure decreases antimicrobial activities of a grapevine cane extract against Plasmopara viticola and Botrytis cinerea as a consequence of stilbene modifications—a kinetic study
Anthony Pébarthé‐Courrouilh,
Ayoub Jaa,
Josep Valls‐Fonayet
et al.
Abstract:BACKGROUNDStilbenoid extracts, such as those originating from grapevine by‐products (e.g. canes), are of interest for use as biopesticides in vineyard owing to their antimicrobial activities. However, stilbenoids are unstable in the environment, especially under light. This study aimed to chemically characterize the effect of UV light on stilbenoids present in a grapevine cane extract (CE), and to evaluate the antimicrobial activities against two major grapevine pathogens (Plasmopara viticola and Botrytis cine… Show more
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