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Billet K, Houillé B, Besseau S, Mélin C, Oudin A, Papon N, Courdavault V, Clastre M, Giglioli-Guivarc'h N, Lanoue A. Mechanical stress rapidly induces E-resveratrol and E-piceatannol biosynthesis in grape canes stored as a freshly-pruned byproduct. Food Chem 2017; 240:1022-1027. [PMID: 28946218 DOI: 10.1016/j.foodchem.2017.07.105] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 06/29/2017] [Accepted: 07/24/2017] [Indexed: 12/27/2022]
Abstract
Grape canes represent a promising source of bioactive phytochemicals. However the stabilization of the raw material after pruning remains challenging. We recently reported the induction of stilbenoid metabolism after winter pruning including a strong accumulation of E-resveratrol and E-piceatannol during the first six weeks of storage. In the present study, the effect of mechanical wounding on freshly-pruned canes was tested to increase the induction of stilbenoid metabolism. Cutting the grape canes in short segments immediately after pruning triggered a transient expression of phenylalanine ammonia-lyase (PAL) and stilbene synthase (STS) genes, followed by a rapid accumulation of E-resveratrol and E-piceatannol. The degree of stilbenoid induction was related to the intensity of mechanical wounding. Data suggest that a global defense response is triggered involving jasmonate signaling, PR proteins and stilbenoid metabolism. Mechanical wounding of freshly-pruned canes drastically shortens the time required to reach maximal stilbenoid accumulation from 6 to 2weeks.
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Affiliation(s)
- Kévin Billet
- Université François-Rabelais de Tours, EA 2106 « Biomolécules et Biotechnologie Végétales», UFR des Sciences Pharmaceutiques, 31 av. Monge, F37200 Tours, France
| | - Benjamin Houillé
- Université François-Rabelais de Tours, EA 2106 « Biomolécules et Biotechnologie Végétales», UFR des Sciences Pharmaceutiques, 31 av. Monge, F37200 Tours, France
| | - Sébastien Besseau
- Université François-Rabelais de Tours, EA 2106 « Biomolécules et Biotechnologie Végétales», UFR des Sciences Pharmaceutiques, 31 av. Monge, F37200 Tours, France
| | - Céline Mélin
- Université François-Rabelais de Tours, EA 2106 « Biomolécules et Biotechnologie Végétales», UFR des Sciences Pharmaceutiques, 31 av. Monge, F37200 Tours, France
| | - Audrey Oudin
- Université François-Rabelais de Tours, EA 2106 « Biomolécules et Biotechnologie Végétales», UFR des Sciences Pharmaceutiques, 31 av. Monge, F37200 Tours, France
| | - Nicolas Papon
- Université d'Angers, Groupe d'Etude des Interactions Hôte-Pathogène, Angers, France
| | - Vincent Courdavault
- Université François-Rabelais de Tours, EA 2106 « Biomolécules et Biotechnologie Végétales», UFR des Sciences Pharmaceutiques, 31 av. Monge, F37200 Tours, France
| | - Marc Clastre
- Université François-Rabelais de Tours, EA 2106 « Biomolécules et Biotechnologie Végétales», UFR des Sciences Pharmaceutiques, 31 av. Monge, F37200 Tours, France
| | - Nathalie Giglioli-Guivarc'h
- Université François-Rabelais de Tours, EA 2106 « Biomolécules et Biotechnologie Végétales», UFR des Sciences Pharmaceutiques, 31 av. Monge, F37200 Tours, France
| | - Arnaud Lanoue
- Université François-Rabelais de Tours, EA 2106 « Biomolécules et Biotechnologie Végétales», UFR des Sciences Pharmaceutiques, 31 av. Monge, F37200 Tours, France.
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