The production of resveratrol (3,5,4'‐trihydroxystilbene) by grapevine in vitro cultures, and its application to screening for grey mould resistance

• Autores: Philippe Jeandet, Mohamed Sbaghi, Roger Bessis
• Localización: Journal of wine research, ISSN 0957-1264, Vol. 3, Nº 1, 1992, págs. 47-57
• Idioma: inglés
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• Resumen

  • The ability of grapevine in vitro cultures to synthesise the phytoalexin precursor resveratrol in response to ultraviolet light irradiations is investigated in order to develop methods for screening for resistance to grey mould (Botrytis cinerea Pers.) in grapevines produced as a result of somatic embryogenesis. It is demonstrated that resveratrol formation can be reproducibly induced in leaves of in vitro plantlets. Differences in the production of resveratrol among the three varieties of Vitis vinifera tested (Pinot Noir, Chardonnay and Cabernet Sauvignon) were consistent with observations regarding their field susceptibility to grey mould. The use of phytoalexin induction and of in vitro methods as a tool for selection of Vitis resistant genotypes in early screening tests is discussed.