SABP2, a methyl salicylate esterase is required for the systemic acquired resistance induced by acibenzolar-S-methyl in plants

被引：70

作者：

Tripathi, Diwaker ^{[1
]}

Jiang, Yu-Lin ^{[2
]}

Kumar, Dhirendra ^{[1
]}

机构：

[1] E Tennessee State Univ, Dept Biol Sci, Johnson City, TN 37614 USA

[2] E Tennessee State Univ, Dept Chem, Johnson City, TN 37614 USA

来源：

FEBS LETTERS | 2010年 / 584卷 / 15期

基金：

美国国家科学基金会;

关键词：

Acibenzolar-S-methyl; Acibenzolar; Salicylic acid-binding protein 2; Systemic acquired resistance; Methyl salicylic acid; ACID-BINDING PROTEIN-2; BENZOTHIADIAZOLE; TOBACCO; IDENTIFICATION; ACTIVATION; SIGNAL; GENE; NPR1; ARABIDOPSIS; INDUCTION;

D O I：

10.1016/j.febslet.2010.06.046

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：

Tobacco SABP2, a 29 kDa protein catalyzes the conversion of methyl salicylic acid (MeSA) into salicylic acid (SA) to induce SAR. Pretreatment of plants with acibenzolar-S-methyl (ASM), a functional analog of salicylic acid induces systemic acquired resistance (SAR). Data presented in this paper suggest that SABP2 catalyzes the conversion of ASM into acibenzolar to induce SAR. Transgenic SABP2-silenced tobacco plants when treated with ASM, fail to express PR-1 proteins and do not induce robust SAR expression. When treated with acibenzolar, full SAR is induced in SABP2-silenced plants. These results show that functional SABP2 is required for ASM-mediated induction of resistance. 2010 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.

引用

页码：3458 / 3463

页数：6

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