The Arabidopsis mutant iop1 exhibits induced over-expression of the plant defensin gene PDF1.2 and enhanced pathogen resistance

被引：4
|
作者：
Penninckx, IAMA
Eggermont, K
Schenk, PM
Van Den Ackerveken, G
Cammue, BPA
Thomma, BPHJ
机构：
[1] Katholieke Univ Leuven, Ctr Microbial & Plant Genet, B-3001 Heverlee, Belgium
[2] Univ Queensland, Cooperat Res Ctr Trop Plant Protect, St Lucia, Qld, Australia
[3] Univ Utrecht, Dept Mol & Cellular Biol, NL-3584 CH Utrecht, Netherlands
来源：
MOLECULAR PLANT PATHOLOGY | 2003年 / 4卷 / 06期
关键词：
D O I：
10.1046/J.1364-3703.2003.00193.X
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Jasmonate and ethylene are concomitantly involved in the induction of the Arabidopsis plant defensin gene PDF1.2. To define genes in the signal transduction pathway leading to the induction of PDF1.2, we screened for-mutants with induced over-expression of a beta-glucuronidase reporter, under the control of the PDF1.2 promoter. One mutant, iop1 (induced over-expressor of PDF1.2) produced small plants that showed induced over-expression of the pathogenesis-related genes PR-3, PR-4 and PR-1,2 (PDF1.2), combined with a down-regulated induction of PR-1 upon pathogen inoculation. The iop1 mutant showed enhanced resistance to a number of necrotrophic pathogens.
引用
收藏
页码：479 / 486
页数：8
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