Methyl Jasmonate Treatment as a Trigger of Resveratrol Synthesis in Cultivated Grapevine

• Silvia Vezzulli ^[1] ; Silvia Civardi ^[2] ; Federico Ferrari ^[2] ; Luigi Bavaresco ^[2]
  1. [1] IASMA Research Center
  2. [2] Università Cattolica del Sacro Cuor
• Localización: American Journal of Enology and Viticulture, ISSN 0002-9254, Vol. 58, Nº 4, 2007, págs. 530-533
• Idioma: inglés
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• Resumen

  • The effect of an exogenous grape berry application of methyl jasmonate (MeJA) on the enhancement of the in vivo resveratrol production was tested. MeJA is a plant volatile that acts as an important intracellular regulator mediating diverse developmental processes and defense responses. A treatment with MeJA spray solution was performed on clusters of Vitis vinifera cv. Barbera grafted onto 3309 C rootstock under drought stress condition and regular water supply and at fruit set, veraison, and ripening. Cumulative MeJA treatments significantly increased berry resveratrol and ε-viniferin production at ripening. Water stress did not affect stilbene synthesis.