Houillé, Benjamin, Besseau, Sébastien, Delanoue, Guillaume, Oudin, Audrey, Papon, Nicolas, Clastre, Marc, Simkin, Andrew John, Guérin, Laurence, Courdavault, Vincent, Giglioli-Guivarc’h, Nathalie, and others. (2015) Composition and Tissue-Specific Distribution of Stilbenoids in Grape Canes Are Affected by Downy Mildew Pressure in the Vineyard. Journal of Agricultural and Food Chemistry, 63 (38). pp. 8472-8477. ISSN 0021-8561. E-ISSN 1520-5118. (doi:10.1021/acs.jafc.5b02997) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:93902)
| The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. | |
| Official URL: https://doi.org/10.1021/acs.jafc.5b02997 |
Abstract
Grape canes are byproducts of viticulture containing valuable bioactive stilbenoids including monomers and oligomers of E-resveratrol. Although effective contents in stilbenoids are known to be highly variable, the determining factors influencing this composition remain poorly understood. As stilbenoids are locally induced defense compounds in response to phytopathogens, this study assessed the impact of downy mildew infection during the growing season on the stilbenoid composition of winter-harvested grape canes. The spatial distribution between pith, conducting tissues, and cortex of E-piceatannol, E-resveratrol, E-ε-viniferin, ampelopsin A, E-miyabenol C, Z/E-vitisin B, hopeaphenol, and isohopeaphenol in grape canes from infected vineyards was strongly altered. In conducting tissues, representing the main site of stilbenoid accumulation, E-ε-viniferin content was higher and E-resveratrol content was lower. These findings suppose that the health status in vineyards could modify the composition of stilbenoids in winter-harvested grape canes and subsequently the potential biological properties of the valuable extracts.
| Item Type: | Article |
|---|---|
| DOI/Identification number: | 10.1021/acs.jafc.5b02997 |
| Uncontrolled keywords: | Fluorescence,Plant derived food,Plants,Phytochemistry,Infectious diseases |
| Subjects: | Q Science |
| Divisions: | Divisions > Division of Natural Sciences > Biosciences |
| Depositing User: | Andrew Simkin |
| Date Deposited: | 05 May 2022 18:58 UTC |
| Last Modified: | 05 Nov 2024 12:59 UTC |
| Resource URI: | https://kar.kent.ac.uk/id/eprint/93902 (The current URI for this page, for reference purposes) |
University of Kent Author Information
Simkin, Andrew John.
| Creator's ORCID: |
 https://orcid.org/0000-0001-5056-1306
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