WRKY62 transcription factor acts downstream of cytosolic NPR1 and   negatively regulates jasmonate-responsive gene expression

doi:10.1093/pcp/pcm058

CORC > 北京大学 > 生命科学学院

	WRKY62 transcription factor acts downstream of cytosolic NPR1 and negatively regulates jasmonate-responsive gene expression
	Mao, Peng ; Duan, Mingrui ; Wei, Chunhong ; Li, Yi
刊名	plant and cell physiology
	2007
关键词	cytosolic jasmonate NPR1 salicylate WRKY62 SYSTEMIC ACQUIRED-RESISTANCE DNA-BINDING PROTEINS ARABIDOPSIS-THALIANA SALICYLIC-ACID PLANT DEFENSE SIGNALING PATHWAYS PR-1 GENE DISEASE-RESISTANCE TGA FACTORS CROSS-TALK
DOI	10.1093/pcp/pcm058
英文摘要	Cytosolic NPR1 has been shown to be essential for the salicylic acid (SA)-mediated suppression of jasmonic acid (JA)-responsive gene expression. However, factors downstream of NPR1 in the cross-talk between SA and JA signaling are unclear. Here we show that Arabidopsis WRKY62, a member of WRKY group III transcription factors, was induced by methyl jasmonate (MeJA) and SA treatment. The presence of basal SA is required for the MeJA-induced WRKY62 expression, and both chemicals exhibit a synergistic effect on WRKY62 induction. In addition, upon treatment with an extremely low concentration of SA, cytosolic NPR1 controls the MeJA-induced expression of WRKY62. TGA transcription factors, which up-regulate SA-induced expression of WRKY62, are dispensable for the induction of WRKY62 in JA signaling. Genetic dissection of both wrky62 mutants and WRKY62-overexpressing plants indicated that WRKY62 down-regulates JA-responsive LOX2 and VSP2 expression. Our results demonstrate that WRKY62 acts downstream of cytosolic NPR1 and negatively regulates JA-responsive gene expression, suggesting that WRKY62 may be involved in the SA-mediated suppression of JA signaling.; Plant Sciences; Cell Biology; SCI(E); PubMed; 45; ARTICLE; 6; 833-842; 48
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/345571]
专题	生命科学学院
推荐引用方式 GB/T 7714	Mao, Peng,Duan, Mingrui,Wei, Chunhong,et al. WRKY62 transcription factor acts downstream of cytosolic NPR1 and negatively regulates jasmonate-responsive gene expression[J]. plant and cell physiology,2007.
APA	Mao, Peng,Duan, Mingrui,Wei, Chunhong,&Li, Yi.(2007).WRKY62 transcription factor acts downstream of cytosolic NPR1 and negatively regulates jasmonate-responsive gene expression.plant and cell physiology.
MLA	Mao, Peng,et al."WRKY62 transcription factor acts downstream of cytosolic NPR1 and negatively regulates jasmonate-responsive gene expression".plant and cell physiology (2007).