Water extracts from winery by-products as plant defence inducers

Razik Benouaret; Eric Goujon; Aurélien Trivella; Claire Richard; Gérard Ledoigt; Jean-Marie Joubert; Aude Mery-Bernardon; Pascale Goupil

doi:10.1007/s10646-014-1298-3

Journal articles

Water extracts from winery by-products as plant defence inducers

Razik Benouaret ¹ Eric Goujon ¹ Aurélien Trivella ² Claire Richard ² Gérard Ledoigt ¹ Jean-Marie Joubert ³ Aude Mery-Bernardon ³ Pascale Goupil ^{1, *}

* Corresponding author

1 PIAF - Laboratoire de Physique et Physiologie Intégratives de l'Arbre Fruitier et Forestier

2 ICCF - Institut de Chimie de Clermont-Ferrand

3 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)

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.

Keywords : Elicitor Grape marc extracts Pathogenesis-related protein genes Plant defense reactions Tobacco

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Journal articles

Domain :

Life Sciences [q-bio] / Vegetal Biology

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Submitted on : Wednesday, November 19, 2014 - 11:37:24 AM
Last modification on : Wednesday, December 9, 2020 - 7:20:01 PM

Water extracts from winery by-products as plant defence inducers

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Water extracts from winery by-products as plant defence inducers

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