Research article summary (published Feb 2006):

Rapid analysis of stilbenes and derivatives from downy mildew-infected grapevine leaves by liquid chromatography-atmospheric pressure photoionisation mass spectrometry.

Full Abstract

Resveratrol, trans-epsilon-viniferin and trans-delta-viniferin are the major stilbenes induced in downy mildew infected grapevine leaves. In addition, nine minor polyphenolic compounds, described as stilbenes derivatives, have been separated and detected among known stilbenes after a methanolic microextraction of small pieces (1-2 mg) from infected grapevine leaves with a rapid, qualitative and optimized HPLC method coupled to mass spectrometry using atmospheric pressure photoionisation (APPI-MS(n)). The characterization of unknown stilbenic derivatives as six resveratrol dimers, two dimethylated resveratrol dimers and a resveratrol trimer are reported. Therefore, structures have been proposed for the dimethylated resveratrol dimers. Use of an easy sample treatment and the LC-APPI-MS(n) method results in spectral data of these minor naturally occurring viniferin analogues.

Author information

Author/s: Jean-Denis, J Bernard (JB); Pezet, Roger (R); Tabacchi, Raffaele (R);

Affiliation: Institute of Chemistry, University of Neuchatel, Rue Emile Argand 11, CH-2009 Neuchatel, Switzerland.

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Journal of chromatography. A (J Chromatogr A), published in Netherlands. (Language: eng)

Reference: 2006-Apr; vol 1112 (issue 1-2) : pp 263-8

Dates: Created 2006/04/17; Completed 2006/06/27; Revised 2009/01/15;

PMID: 16458906, status: MEDLINE (last retrieved date: 2/18/2009)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MeSH Headings (categories) shown below.

Chromatography, Liquid - methods Flavonoids - analysis Phenols - analysis Plant Diseases Plant Leaves - chemistry

Plant Leaves - chemistry Sensitivity and Specificity Spectrometry, Mass, Electrospray Ionization - methods Stilbenes - analysis Vitis - chemistry

Note: Bold headings indicate primary MeSH headings or qualifiers.

Associated Chemicals: Flavonoids (0) ; Phenols (0) ; Stilbenes (0) ; polyphenols (0)

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