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Over 1000-Fold Synergistic Boost in Viniferin Levels by Elicitation of cv. Gamay Red Cell Cultures over Accumulating Phenylalanine. | LitMetric

Over 1000-Fold Synergistic Boost in Viniferin Levels by Elicitation of cv. Gamay Red Cell Cultures over Accumulating Phenylalanine.

J Agric Food Chem

Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O. Box 15159, Rishon LeZion 7505101, Israel.

Published: April 2022

AI Article Synopsis

Article Abstract

Elicitation treatments of grape cell cultures with methyl jasmonate (MeJA), ultraviolet-C (UV-C) irradiation, and sucrose induce mild production of stilbenes and flavonoids due to limited substrate availability. However, these treatments cause a synergistic boost of stilbenes production when applied to two phenylalanine (Phe)-enriched transgenic grape cell lines, * + and * + . The combined treatment of UV-C elicitation on the Phe-fed * + line resulted in the highest content of stilbenes (37.8-fold increase, 17.39 mg/g dry weight (DW)) mainly due to resveratrol (64-fold, 3.23 mg/g DW) and viniferin (1343-fold, 13.43 mg/g DW). The synergistic increase following either UV-C or MeJA elicitation was due to the induction of stilbene-related genes, while sucrose treatment had no effect on gene expression levels and served as an additional carbon source for phenylpropanoids. The combined strategy presented may enable future usage of grape cell cultures for the production of stilbenes and in particular viniferin.

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Source
http://dx.doi.org/10.1021/acs.jafc.2c00107DOI Listing

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