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

Abstract:

:Tobacco SABP2, a 29kDa 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.

journal_name

FEBS Lett

journal_title

FEBS letters

authors

Tripathi D,Jiang YL,Kumar D

doi

10.1016/j.febslet.2010.06.046

subject

Has Abstract

pub_date

2010-08-04 00:00:00

pages

3458-63

issue

15

eissn

0014-5793

issn

1873-3468

pii

S0014-5793(10)00554-5

journal_volume

584

pub_type

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