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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
| dc.rights.license | open | en_US |
| hal.structure.identifier | Unité de Recherche Œnologie [Villenave d'Ornon] [OENO] | |
| dc.contributor.author | PEBARTHE-COURROUILH, Anthony | |
| hal.structure.identifier | Unité de Recherche Œnologie [Villenave d'Ornon] [OENO] | |
| dc.contributor.author | JAA, Ayoub | |
| hal.structure.identifier | Unité de Recherche Œnologie [Villenave d'Ornon] [OENO] | |
| dc.contributor.author | VALLS FONAYET, Josep | |
| hal.structure.identifier | Unité de Recherche Œnologie [Villenave d'Ornon] [OENO] | |
| dc.contributor.author | DA COSTA, Grégory | |
| hal.structure.identifier | Unité de Recherche Œnologie [Villenave d'Ornon] [OENO] | |
| dc.contributor.author | PALOS-PINTO, Antonio | |
| hal.structure.identifier | Unité de Recherche Œnologie [Villenave d'Ornon] [OENO] | |
| dc.contributor.author | RICHARD, Tristan | |
| hal.structure.identifier | Unité de Recherche Œnologie [Villenave d'Ornon] [OENO] | |
| dc.contributor.author | CLUZET, Stéphanie | |
| dc.date.accessioned | 2025-04-14T10:12:00Z | |
| dc.date.available | 2025-04-14T10:12:00Z | |
| dc.date.issued | 2024-08-22 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/206177 | |
| dc.description.abstractEn | BACKGROUND: Stilbenoid 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 cinerea) of grapevine extracts exposed to UV. RESULTS: Treatment with UV (365 nm) on a grapevine CE led to degradation of stilbenoids (up to 71% after 1 h). The stilbenoid stability depended on their chemical structure: only those possessing C-C, as trans-resveratrol and trans-ε-viniferin, were affected with first their isomerization and secondly their oxidation/cyclization. As a consequence, UV-exposed extracts (UV-CEs) showed reduced antimicrobial activities against the two pathogens (mycelium and spores). For instance, regarding P. viticola, an UV-CE exposed during 4 h showed an almost total loss of its activity on oomycete development and a 2.4-fold inhibition of zoospore mobility in comparison to CE. For B. cinerea, the inhibition capacity of the same UV-CE was reduced by only 1.1-fold on mycelial development and by 3.2-fold on conidial germination compared to CE. CONCLUSION: UV light triggered modifications on the structure of bioactive stilbenoids, resulting in losses of their antimicrobial activities. Photoprotection of stilbenoids has to be considered in the perspective of using them in vineyards as biopesticides. © 2024 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. © 2024 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. | |
| dc.description.sponsorship | Développement d'une infrastructure française distribuée pour la métabolomique dédiée à l'innovation - ANR-11-INBS-0010 | en_US |
| dc.language.iso | EN | en_US |
| dc.rights | Attribution-NonCommercial 3.0 United States | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc/3.0/us/ | * |
| dc.subject.en | Downy Mildew | |
| dc.subject.en | Gray Mold | |
| dc.subject.en | Photodegradation | |
| dc.subject.en | Photoisomerization | |
| dc.subject.en | Polyphenols | |
| dc.subject.en | Vineyard By-Products | |
| dc.title.en | 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 | |
| dc.type | Article de revue | en_US |
| dc.identifier.doi | 10.1002/ps.8367 | en_US |
| dc.subject.hal | Sciences du Vivant [q-bio]/Biologie végétale | en_US |
| bordeaux.journal | Pest Management Science | en_US |
| bordeaux.page | 6389 - 6399 | en_US |
| bordeaux.volume | 80 | en_US |
| bordeaux.hal.laboratories | Oenologie - UMR 1366 | en_US |
| bordeaux.issue | 12 | en_US |
| bordeaux.institution | Université de Bordeaux | en_US |
| bordeaux.institution | Bordeaux INP | en_US |
| bordeaux.institution | INRAE | en_US |
| bordeaux.peerReviewed | oui | en_US |
| bordeaux.inpress | non | en_US |
| hal.popular | non | en_US |
| hal.audience | Internationale | en_US |
| hal.export | false | |
| dc.rights.cc | CC BY-NC | en_US |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Pest%20Management%20Science&rft.date=2024-08-22&rft.volume=80&rft.issue=12&rft.spage=6389%20-%206399&rft.epage=6389%20-%206399&rft.au=PEBARTHE-COURROUILH,%20Anthony&JAA,%20Ayoub&VALLS%20FONAYET,%20Josep&DA%20COSTA,%20Gr%C3%A9gory&PALOS-PINTO,%20Antonio&rft.genre=article |