1. Stilbenes from Vitis vinifera L. Waste: A Sustainable Tool for Controlling Plasmopara Viticola.
- Author
-
Gabaston J, Cantos-Villar E, Biais B, Waffo-Teguo P, Renouf E, Corio-Costet MF, Richard T, and Mérillon JM
- Subjects
- Fungicides, Industrial chemistry, Fungicides, Industrial isolation & purification, Molecular Structure, Oomycetes growth & development, Plant Diseases microbiology, Plant Diseases prevention & control, Plant Extracts chemistry, Plant Extracts isolation & purification, Plant Roots microbiology, Stilbenes chemistry, Stilbenes isolation & purification, Fungicides, Industrial pharmacology, Oomycetes drug effects, Plant Extracts pharmacology, Stilbenes pharmacology, Vitis chemistry, Waste Products analysis
- Abstract
Stilbene-enriched extracts from Vitis vinifera waste (cane, wood, and root) were characterized by UHPLC-MS. Eleven stilbenes were identified and quantified as follows: ampelopsin A, (E)-piceatannol, pallidol, (E)-resveratrol, hopeaphenol, isohopeaphenol, (E)-ε-viniferin, (E)-miyabenol C, (E)-ω-viniferin, r2-viniferin, and r-viniferin. The fungicide concentration inhibiting 50% of growth of Plasmopara viticola sporulation (IC
50 ) was determined for the extracts and also for the main compounds isolated. r-Viniferin followed by hopeaphenol and r2-viniferin showed low IC50 and thus high efficacy against Plasmopara viticola. Regarding stilbene extracts, wood extract followed by root extract showed the highest antifungal activities. These data suggest that stilbene complex mixtures from Vitis vinifera waste could be used as a cheap source of bioactive stilbenes for the development of natural fungicides.- Published
- 2017
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