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Molecules 2014, 19(9), 14004-14021; doi:10.3390/molecules190914004

Study of Leaf Metabolome Modifications Induced by UV-C Radiations in Representative Vitis, Cissus and Cannabis Species by LC-MS Based Metabolomics and Antioxidant Assays

1
School of Pharmaceutical Sciences, EPGL, University of Geneva, University of Lausanne, Quai Ernest-Ansermet 30, Geneva CH-1211, Switzerland
2
Station de recherche Agroscope, Institut des Sciences en Production Végétale IPV, Route de Duiller 50, P.O. Box 1012, Nyon 1260, Switzerland
Actual address: Université de Toulouse, UPS, UMR 152 Pharma-DEV, F-31062 Toulouse cedex 09, France.
*
Author to whom correspondence should be addressed.
Received: 10 June 2014 / Revised: 14 August 2014 / Accepted: 27 August 2014 / Published: 5 September 2014
(This article belongs to the Special Issue Phytoalexins: Current Progress and Future Prospects)
View Full-Text   |   Download PDF [1304 KB, uploaded 5 September 2014]   |  

Abstract

UV-C radiation is known to induce metabolic modifications in plants, particularly to secondary metabolite biosynthesis. To assess these modifications from a global and untargeted perspective, the effects of the UV-C radiation of the leaves of three different model plant species, Cissus antarctica Vent. (Vitaceae), Vitis vinifera L. (Vitaceae) and Cannabis sativa L. (Cannabaceae), were evaluated by an LC-HRMS-based metabolomic approach. The approach enabled the detection of significant metabolite modifications in the three species studied. For all species, clear modifications of phenylpropanoid metabolism were detected that led to an increased level of stilbene derivatives. Interestingly, resveratrol and piceid levels were strongly induced by the UV-C treatment of C. antarctica leaves. In contrast, both flavonoids and stilbene polymers were upregulated in UV-C-treated Vitis leaves. In Cannabis, important changes in cinnamic acid amides and stilbene-related compounds were also detected. Overall, our results highlighted phytoalexin induction upon UV-C radiation. To evaluate whether UV-C stress radiation could enhance the biosynthesis of bioactive compounds, the antioxidant activity of extracts from control and UV-C-treated leaves was measured. The results showed increased antioxidant activity in UV-C-treated V. vinifera extracts. View Full-Text
Keywords: phytoalexins; UV-C stress; metabolomics; LC-MS; Cannabis sativa; Cissus antarctica; Vitis vinifera; chemodiversity phytoalexins; UV-C stress; metabolomics; LC-MS; Cannabis sativa; Cissus antarctica; Vitis vinifera; chemodiversity
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Marti, G.; Schnee, S.; Andrey, Y.; Simoes-Pires, C.; Carrupt, P.-A.; Wolfender, J.-L.; Gindro, K. Study of Leaf Metabolome Modifications Induced by UV-C Radiations in Representative Vitis, Cissus and Cannabis Species by LC-MS Based Metabolomics and Antioxidant Assays. Molecules 2014, 19, 14004-14021.

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