Optimization of aroma production in grape cell suspensions induced by chemical elicitor
Abstract
Methyl-jasmonate (MeJA) induces the production of at least 25 compounds with sesquiterpene- like mass spectra in “Cabernet sauvignon”. The most effective concentration of MeJA in stimulating the production of sesquiterpenes was found to be 500 µM if added when the cell suspensions had a PCV of 35 %, and 1000 if added when the cell suspensions had a PCV of 70 %. The production of sesquiterpenes quickly decreased with the increase of cell suspension PCV at the moment of MeJA addition. The production of sequiterpenes began 12 hours after the addition of MeJA, and reached a maximum 72 hours after MeJA addition. MeJA also induced a significantly greater amount of proanthocyanidins and stilbenes in the grape cell cultures.
Issue: Macrowine 2010
Type: Article
Authors
1Department of Fruit Science and Plant Protection of Woody Species ‘G. Scaramuzzi’, Fruit Science Section, University of Pisa, Via del Borghetto 80, 56124 Pisa, I.