Salt-Induced Stabilization of EIN3/EIL1 Confers Salinity Tolerance by   Deterring ROS Accumulation in Arabidopsis

doi:10.1371/journal.pgen.1004664

CORC > 北京大学 > 生命科学学院

	Salt-Induced Stabilization of EIN3/EIL1 Confers Salinity Tolerance by Deterring ROS Accumulation in Arabidopsis
	Peng, Jinying ; Li, Zhonghai ; Wen, Xing ; Li, Wenyang ; Shi, Hui ; Yang, Longshu ; Zhu, Huaiqiu ; Guo, Hongwei
刊名	plos genetics
	2014
关键词	ETHYLENE SIGNAL-TRANSDUCTION FINGER PROTEIN ZAT12 REACTIVE OXYGEN TRANSCRIPTION FACTORS STRESS RESPONSES OXIDATIVE STRESS TOBACCO SEEDLINGS PLANT-RESPONSES ABSCISIC-ACID GENE
DOI	10.1371/journal.pgen.1004664
英文摘要	Ethylene has been regarded as a stress hormone to regulate myriad stress responses. Salinity stress is one of the most serious abiotic stresses limiting plant growth and development. But how ethylene signaling is involved in plant response to salt stress is poorly understood. Here we showed that Arabidopsis plants pretreated with ethylene exhibited enhanced tolerance to salt stress. Gain-and loss-of-function studies demonstrated that EIN3 (ETHYLENE INSENSITIVE 3) and EIL1 (EIN3-LIKE 1), two ethylene-activated transcription factors, are necessary and sufficient for the enhanced salt tolerance. High salinity induced the accumulation of EIN3/EIL1 proteins by promoting the proteasomal degradation of two EIN3/EIL1-targeting F-box proteins, EBF1 and EBF2, in an EIN2-independent manner. Whole-genome transcriptome analysis identified a list of SIED (Salt-Induced and EIN3/EIL1-Dependent) genes that participate in salt stress responses, including several genes encoding reactive oxygen species (ROS) scavengers. We performed a genetic screen for ein3 eil1-like salt-hypersensitive mutants and identified 5 EIN3 direct target genes including a previously unknown gene, SIED1 (At5g22270), which encodes a 93-amino acid polypeptide involved in ROS dismissal. We also found that activation of EIN3 increased peroxidase (POD) activity through the direct transcriptional regulation of PODs expression. Accordingly, ethylene pretreatment or EIN3 activation was able to preclude excess ROS accumulation and increased tolerance to salt stress. Taken together, our study provides new insights into the molecular action of ethylene signaling to enhance plant salt tolerance, and elucidates the transcriptional network of EIN3 in salt stress response.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000344650700034&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Genetics & Heredity; SCI(E); PubMed; 18; ARTICLE; hongweig@pku.edu.cn; 10; e1004664; 10
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/188593]
专题	生命科学学院工学院
推荐引用方式 GB/T 7714	Peng, Jinying,Li, Zhonghai,Wen, Xing,et al. Salt-Induced Stabilization of EIN3/EIL1 Confers Salinity Tolerance by Deterring ROS Accumulation in Arabidopsis[J]. plos genetics,2014.
APA	Peng, Jinying.,Li, Zhonghai.,Wen, Xing.,Li, Wenyang.,Shi, Hui.,...&Guo, Hongwei.(2014).Salt-Induced Stabilization of EIN3/EIL1 Confers Salinity Tolerance by Deterring ROS Accumulation in Arabidopsis.plos genetics.
MLA	Peng, Jinying,et al."Salt-Induced Stabilization of EIN3/EIL1 Confers Salinity Tolerance by Deterring ROS Accumulation in Arabidopsis".plos genetics (2014).