Salicylic acid and its location in response to biotic and abiotic stress

被引：127

作者：

Fragniere, Cindy ^{[1
]}

Serrano, Mario ^{[1
]}

Abou-Mansour, Eliane ^{[1
]}

Metraux, Jean-Pierre ^{[1
]}

L'Haridon, Floriane ^{[1
]}

机构：

[1] Univ Fribourg, Dept Biol, CH-1700 Fribourg, Switzerland

来源：

FEBS LETTERS | 2011年 / 585卷 / 12期

基金：

瑞士国家科学基金会;

关键词：

Isochorismate synthase; Nicotiana; Salicylic acid; Salicylate hydroxylase; CELL-SUSPENSION CULTURES; ARABIDOPSIS-THALIANA; VACUOLAR LOCALIZATION; DISEASE RESISTANCE; IN-VIVO; CROSSTALK; CHLOROPLASTS; DEFENSE; PROTEIN; PLANTS;

D O I：

10.1016/j.febslet.2011.04.039

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Salicylic acid (SA) is an important signal involved in the activation of plant defence responses against abiotic and biotic stress. SA may derive from the phenylpropanoid pathway or via isochorismate synthase as demonstrated in Nicotiana benthamiana, tomato and Arabidopsis thaliana. The phenylpropanoid pathway as well as isochorismate synthase are localized in the chloroplasts but it remains unknown if the end product SA is in the same organelle. We have studied the localization of SA in A. thaliana using the salicylate hydroxylase (NahG) gene expressed with a chloroplast targeting sequence. Plants expressing NahG in the chloroplasts are unable to accumulate SA induced after pathogen or UV exposure. Our data infer that SA is initially located in the chloroplasts. (C) 2011 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.

引用

页码：1847 / 1852

页数：6

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