17 N. Keskin B. Kunter Journal of Animal and Plant Sciences JAPS 20102010/06/01 20 3 197-200 1018-7081 NA <p>In this study, the effects of ultraviolet (UV) irradiation time, incubation time and callus age were investigated for trans-resveratrol induction in callus cultures of Vitis vinifera L. cv. &Ouml;k&uuml;zg&ouml;z&uuml;. Callus tissues were exposed to 254 nm UV light at 10 cm distance from the source for 10 and 15 minutes by opening covers of the petri dishes in a sterile cabinet. High Pressure Liquid Chromatography was used for determining trans-resveratrol production and concentrations were recorded at 0, 24, 48 and 72 hours after beginning of incubation. The highest trans-resveratrol concentration (62.23 g/g callus fresh weight) was determined at 48 hours of 12 -day-old callus cultures irradiated for 15 min. 15 min UV irradiation period was found to be effective for induction of trans-resveratrol production and thus callus cultures could be convenient for trans-resveratrol production.</p> Öküzgözü (Vitis vinifera L. cv.), trans-resveratrol, callus culture, UV irradiation Pakistan Agricultural Scientists Forum https://thejaps.org.pk/AbstractView.aspx?mid=2010-JAPS-312