Antifungal activity of chili pepper extract with potential for the control of some major pathogens in grapevine.

Autor: Vuerich M; Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy., Petrussa E; Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy., Filippi A; Department of Medicine, University of Udine, Udine, Italy., Cluzet S; Equipe Molécules d'Intérêt Biologique (MIB)-ISVV, University of Bordeaux, Faculté des Sciences Pharmaceutiques, INRAE, Bordeaux INP, Bordeaux Sciences Agro, OENO, UMR 1366, Villenave d'Ornon, France., Fonayet JV; Equipe Molécules d'Intérêt Biologique (MIB)-ISVV, University of Bordeaux, Faculté des Sciences Pharmaceutiques, INRAE, Bordeaux INP, Bordeaux Sciences Agro, OENO, UMR 1366, Villenave d'Ornon, France.; MetaboHUB, Bordeaux Metabolome Facility, Villenave d'Ornon, France., Sepulcri A; Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy., Piani B; Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy., Ermacora P; Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy., Braidot E; Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Udine, Italy.
Jazyk: angličtina
Zdroj: Pest management science [Pest Manag Sci] 2023 Jul; Vol. 79 (7), pp. 2503-2516. Date of Electronic Publication: 2023 Mar 16.
DOI: 10.1002/ps.7435
Abstrakt: Background: In recent years, biofungicides have drawn increasing interest in vineyards for a more sustainable integrated and copper-limited pest management. Among alternatives, botanicals could represent valuable tools, being rich sources of biologically active compounds. Conversely to the well-known antioxidant and biological properties in relation to health benefits, investigation on bioactivity of hot pungent Capsicum sp. products against fungal phytopathogens in vineyards is still scarce. Therefore, the present study aimed at exploring the biologically active compounds profile of a chili pepper (Capsicum chinense Jacq.) pod extract and its antimicrobial properties against some of the major fungal and Oomycetes pathogens of grapevine, including Botrytis cinerea Pers., Guignardia bidwellii (Ellis) Viala & Ravaz and Plasmopara viticola (Berk. & M.A. Curtis) Berl. & De Toni.
Results: The ethyl acetate-extracted oleoresin from the most pungent varieties was rich in capsaicinoids and polyphenols (371.09 and 268.5 μg mg -1 dry weight, respectively). Capsaicin and dihydrocapsaicin, hydroxycinnamic and hydroxybenzoic acids and quercetin derivatives were the most abundant, while carotenoids represented only a minor fraction. The oleoresin was efficient to inhibit all three pathogenic fungi and ED 50 values were determined, evidencing that G. bidwellii was the more sensitive (0.233 ± 0.034 mg mL -1 ).
Conclusion: The results suggested a potentiality of chili pepper extract for the control of some important grapevine pathogens, their possible application being helpful for the recommended limitation in extensive use of copper in vineyard. The complex mixture of high amounts of capsaicinoids, associated to specific phenolic acids and other minor bioactive components might contribute to the observed antimicrobial action of chili pepper extract. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
(© 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.)
Databáze: MEDLINE
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