Solar UV-B radiation modifies the proportion of Volatile Organic Compounds in flowers of field-grown grapevine (Vitis vinifera L.) cv. Malbec

Gil, Mariana
Bottini, Rubén
Pontin, Mariela Ana
Berli, Federico Javier
Salomon, María Victoria
Piccoli, Patricia Noemí

Open link

Publication date

March 2014

DOI

10.1007/s10725-014-9911-2

Publisher

Springer Science and Business Media LLC

Journal

Plant Growth Regulation

Abstract

Ultraviolet-B solar radiation (UV-B) is an environmental signal with biological effects in different plant tissues. Recent investigations reported dramatic changes of terpenes with a protective role in plant tissues submitted to biotic and abiotic stresses. This study examined the volatile organic compounds (VOCs) profile in flowers of Vitis vinifera L. cv. Malbec under filtered UV-B (or not). Gas chromatography-electron impact mass spectrometry analysis of flowers resulted in the identification of 12 VOCs, including eight sesquiterpenes, two aldehydes, and two ketones, being the oxygenated sesquiterpene farnesol the most abundant. The total amount of VOCs in flowers did not change irrespective UV-B had been filtered or not, suggesting thos...