The content of selected phenolic compounds including resveratrol (trans-3,5,4′-trihydroxystilbene) and its cis-isomer and glucosides (piceides) were monitored in grape (Vitis vinifera L. cv. Corvina) berry skin during ripening in the vineyard and in response to the post-harvest drying process (wilting). Four wilting conditions were compared (traditional, mixed, low-temperature, and high temperature) to verify the eliciting effect of drying on resveratrol production. During fruit ripening the cis-piceid was the major stilbene found in berry skins, and a weak accumulation of stilbene synthase (STS) mRNA was observed, whereas UV-light irradiation greatly stimulated STS transcript of unripe berries. A time-course experiment showed the highest STS mRNA accumulation and resveratrol content (34/μg/g fresh weight at 58 days) occurring in berry skins in a mixed wilting process.
Stilbene compounds and stilbene synthase expression during ripening, wilting, and UV treatment in grape cv. Corvina / Versari A.; Paola Parpinello G.; Battista Tornielli G.; Ferrarini R.; Giulivo C.. - In: JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. - ISSN 0021-8561. - ELETTRONICO. - 49:11(2001), pp. 5531-5536. [10.1021/jf010672o]
Stilbene compounds and stilbene synthase expression during ripening, wilting, and UV treatment in grape cv. Corvina
Versari A.
Membro del Collaboration Group
;Paola Parpinello G.Membro del Collaboration Group
;
2001
Abstract
The content of selected phenolic compounds including resveratrol (trans-3,5,4′-trihydroxystilbene) and its cis-isomer and glucosides (piceides) were monitored in grape (Vitis vinifera L. cv. Corvina) berry skin during ripening in the vineyard and in response to the post-harvest drying process (wilting). Four wilting conditions were compared (traditional, mixed, low-temperature, and high temperature) to verify the eliciting effect of drying on resveratrol production. During fruit ripening the cis-piceid was the major stilbene found in berry skins, and a weak accumulation of stilbene synthase (STS) mRNA was observed, whereas UV-light irradiation greatly stimulated STS transcript of unripe berries. A time-course experiment showed the highest STS mRNA accumulation and resveratrol content (34/μg/g fresh weight at 58 days) occurring in berry skins in a mixed wilting process.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
