Water extracts from winery by-products as plant defence inducers

Abstract : Water extracted winery by-products exhibited significant plant defence inducer properties. Experiments were conducted on three marc extracts containing various amounts of polyphenols and anthocyanins. Infiltration of red, white and seed grape marc extracts into tobacco leaves induced hypersensitive reaction-like lesions with cell death evidenced by Evans Blue staining. The infiltration zones and the surrounding areas revealed accumulation of autofluorescent compounds under UV light. Leaf infiltration of the three winery by-products induced defence gene expression. The PR1, PR2, and PR3 target genes were upregulated locally in tobacco plants following grape marc extract treatments. PR5 transcripts accumulated as well in red marc extract treated-tobacco leaves. Overall, the winery by-products extracts elicited an array of plant defence responses making the grape residues a potential use of high value compounds.
Type de document :
Article dans une revue
Ecotoxicology, Springer Verlag, 2014, 23, pp.1574-1581. 〈10.1007/s10646-014-1298-3〉
Liste complète des métadonnées

Littérature citée [33 références]  Voir  Masquer  Télécharger

https://hal-clermont-univ.archives-ouvertes.fr/hal-01084437
Contributeur : Pascale Goupil <>
Soumis le : mercredi 19 novembre 2014 - 11:37:24
Dernière modification le : vendredi 6 juillet 2018 - 15:06:09

Annexe

Identifiants

Citation

Razik Benouaret, Eric Goujon, Aurélien Trivella, Claire Richard, Gérard Ledoigt, et al.. Water extracts from winery by-products as plant defence inducers. Ecotoxicology, Springer Verlag, 2014, 23, pp.1574-1581. 〈10.1007/s10646-014-1298-3〉. 〈hal-01084437〉

Partager

Métriques

Consultations de la notice

272

Téléchargements de fichiers

1