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Int. J. Mol. Sci. 2011, 12(11), 7971-7981; doi:10.3390/ijms12117971

Impact of Temporary Nitrogen Deprivation on Tomato Leaf Phenolics

1 INRA UR 1115 Horticultural Plants and Culture Systems (PSH), Domaine Saint Paul, F-84914 Avignon, France 2 UMR 1121 University of Lorraine (INPL)-INRA Agronomy and Environment Nancy-Colmar, ENSAIA 2, avenue de la forêt de Haye F-54505 Vandœuvre-lès-Nancy, France
* Author to whom correspondence should be addressed.
Received: 9 September 2011 / Revised: 7 November 2011 / Accepted: 8 November 2011 / Published: 16 November 2011
(This article belongs to the Section Biochemistry, Molecular Biology and Biophysics)
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Reducing the use of pesticides represents a major challenge of modern agriculture. Plants synthesize secondary metabolites such as polyphenols that participate in the resistance to parasites. The aim of this study was to test: (1) the impact of nitrogen deficiency on tomato (Solanum lycopersicum) leaf composition and more particularly on two phenolic molecules (chlorogenic acid and rutin) as well as on the general plant biomass; and (2) whether this effect continued after a return to normal nitrogen nutrition. Our results showed that plants deprived of nitrogen for 10 or 19 days contained higher levels of chlorogenic acid and rutin than control plants. In addition, this difference persisted when the plants were once again cultivated on a nitrogen-rich medium. These findings offer interesting perspectives on the use of a short period of deprivation to modulate the levels of compounds of interest in a plant.
Keywords: chlorogenic acid; rutin; nitrogen deprivation; phenolic compound; tomato chlorogenic acid; rutin; nitrogen deprivation; phenolic compound; tomato
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Bénard, C.; Bourgaud, F.; Gautier, H. Impact of Temporary Nitrogen Deprivation on Tomato Leaf Phenolics. Int. J. Mol. Sci. 2011, 12, 7971-7981.

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