ANAC055 and ANAC092 contribute non-redundantly in an EIN2-dependent manner to Age-Related Resistance in Arabidopsis

被引：18
作者：
Al-Daoud, Fadi [1 ]
Cameron, Robin K. [1 ]
机构：
[1] McMaster Univ, Dept Biol, Hamilton, ON L8S 4K1, Canada
来源：
PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY | 2011年 / 76卷 / 3-4期
关键词：
ANAC055; ANAC092; EIN2; PDF1.2; ICS1; LOX2; Age-Related Resistance; Arabidopsis thaliana; Pseudomonas syringae pv. tomato; PATHOGENESIS-RELATED PROTEINS; NAC TRANSCRIPTION FACTORS; SYRINGAE-PV.-TOMATO; PATTERN-RECOGNITION RECEPTORS; CUP-SHAPED-COTYLEDON; PSEUDOMONAS-SYRINGAE; SALICYLIC-ACID; METHYL JASMONATE; PHYTOTOXIN CORONATINE; DEFENSE RESPONSES;
D O I：
10.1016/j.pmpp.2011.09.003
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
As Arabidopsis matures it becomes resistant to virulent Pseudomonas syringae pv. tomato (Pst), a defense response known as Age-Related Resistance (ARR). The contribution of two NAC transcription factors (ANAC055 and ANAC092) and jasmonic acid/ethylene (JA/ET) signaling to ARR was examined by comparing Pst growth in wild-type plants, nac mutants, an ANAC092-overexpressing line, lox2, and ein2-1. PDF1.2 expression and anac055anac092 double mutant analysis suggests that ANAC055 and ANAC092 play non-redundant roles in ARR. Additionally, ANAC092 contributes to the initiation of flowering in short day-grown plants. ANAC055 and ANAC092 expression was reduced in partially ARR-defective ein2-1 suggesting that regulation of ANAC055 and ANAC092 by EIN2 contributes to ARR. (C) 2011 Elsevier Ltd. All rights reserved.
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收藏
页码：212 / 222
页数：11
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