TY - JOUR T1 - Effect of Benzothiadiazole and Methyl Jasmonate on the Volatile Compound Composition of Monastrell Grapes and Wines JF - American Journal of Enology and Viticulture JO - Am. J. Enol. Vitic. DO - 10.5344/ajev.2012.12011 SP - ajev.2012.12011 AU - Encarna Gómez-Plaza AU - Laura Mestre-Ortuño AU - Yolanda Ruiz-García AU - Jose Ignacio Fernández-Fernández AU - Jose María López-Roca Y1 - 2012/06/25 UR - http://www.ajevonline.org/content/early/2012/06/22/ajev.2012.12011.abstract N2 - Benzothiadiazole (BTH) and methyl jasmonate (MeJ) have been described as exogenous elicitors of some plant defence compounds. The objective of this study was to determine whether the application of BTH and MeJ to grape clusters at the beginning of the ripening process affects the synthesis of volatile compounds in grapes (as has been observed in other fruits) and whether this effect has a technological significance in the resulting wines. The results indicated that both treatments increased the levels of volatile compounds in grapes, especially terpenes and norisoprenoids in BTH-treated grapes. The wines obtained from the treated grapes also showed higher levels of terpene and isoprenoids. Wines from MeJ-treated grapes presented levels of these volatile compounds almost two times higher than the wines made from control grapes. These differences in the volatile compound levels could be sensorially detected. ER -