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Molecules 2014, 19(7), 10587-10600; doi:10.3390/molecules190710587

MALDI Mass Spectrometry Imaging for the Simultaneous Location of Resveratrol, Pterostilbene and Viniferins on Grapevine Leaves

1
Laboratoire de Chimie et Physique-Approche Multi échelle des Milieux Complexes (LCP-A2MC), Institut Jean Barriol (FR 2843), Université de Lorraine, ICPM 1 Boulevard Arago, F-57078 Metz, France
2
Institut National de Recherche en Agronomie (INRA) – Santé de la Vigne et Qualité du Vin (UMR 1131), 28 rue de Herrlisheim, F-68021 Colmar, France
*
Author to whom correspondence should be addressed.
Received: 4 May 2014 / Revised: 1 July 2014 / Accepted: 16 July 2014 / Published: 21 July 2014
(This article belongs to the Special Issue Phytoalexins: Current Progress and Future Prospects)
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Abstract

To investigate the in-situ response to a stress, grapevine leaves have been subjected to mass spectrometry imaging (MSI) experiments. The Matrix Assisted Laser Desorption/Ionisation (MALDI) approach using different matrices has been evaluated. Among all the tested matrices, the 2,5-dihydroxybenzoic acid (DHB) was found to be the most efficient matrix allowing a broader range of detected stilbene phytoalexins. Resveratrol, but also more toxic compounds against fungi such as pterostilbene and viniferins, were identified and mapped. Their spatial distributions on grapevine leaves irradiated by UV show their specific colocation around the veins. Moreover, MALDI MSI reveals that resveratrol (and piceids) and viniferins are not specifically located on the same area when leaves are infected by Plasmopara viticola. Results obtained by MALDI mass spectrometry imaging demonstrate that this technique would be essential to improve the level of knowledge concerning the role of the stilbene phytoalexins involved in a stress event. View Full-Text
Keywords: mass spectrometry imaging; grapevine; stilbene phytoalexin; viniferin; resveratrol; pterostilbene; MALDI; Plasmopara viticola; Vitis vinifera mass spectrometry imaging; grapevine; stilbene phytoalexin; viniferin; resveratrol; pterostilbene; MALDI; Plasmopara viticola; Vitis vinifera
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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

Becker, L.; Carré, V.; Poutaraud, A.; Merdinoglu, D.; Chaimbault, P. MALDI Mass Spectrometry Imaging for the Simultaneous Location of Resveratrol, Pterostilbene and Viniferins on Grapevine Leaves. Molecules 2014, 19, 10587-10600.

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