Apple MdERF4 negatively regulates salt tolerance by inhibiting MdERF3 transcription

被引：29

作者：

An, Jian-Ping ^{[1
]}

Zhang, Xiao-Wei ^{[1
]}

Xu, Rui-Rui ^{[2
]}

You, Chun-Xiang ^{[1
]}

Wang, Xiao-Fei ^{[1
]}

Hao, Yu-Jin ^{[1
]}

机构：

[1] Shandong Agr Univ, Coll Hort Sci & Engn, MOA Key Lab Hort Crop Biol & Gennplasm Innovat, State Key Lab Crop Biol, Tai An 271018, Shandong, Peoples R China

[2] Weifang Univ, Coll Biol & Agr Engn, Weifang 261061, Shandong, Peoples R China

来源：

PLANT SCIENCE | 2018年 / 276卷

关键词：

Apple; ERF; Ethylene; Salt stress; ETHYLENE-RESPONSE FACTORS; GENE-EXPRESSION; ARABIDOPSIS-THALIANA; STRESS RESPONSES; ABSCISIC-ACID; ECTOPIC EXPRESSION; PLANT-RESPONSES; ABIOTIC STRESS; RICE; DROUGHT;

D O I：

10.1016/j.plantsci.2018.08.017

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Phytohormone ethylene is involved in salt stress response. As a key regulator of ethylene signaling, ethylene response factors (ERFs) have been reported to regulate salt stress tolerance. However, there are few studies on the relationship between ERFs in salt stress response. In this study, we isolated a salt-responsive gene MdERF4. Overexpression of MdERF4 negatively regulated salt stress tolerance and ethylene response, which was contrary to that of MdERF3 transgenic lines. Biochemical assays showed that MdERF4 directly bound to the DRE motif of MdERF3 promoter and suppressed its transcription. In addition, genetic analysis revealed that MdERF4 was involved in ethylene-mediated salt tolerance. Taken together, these findings demonstrated the transcriptional regulation between MdERF4 and MdERF3 in salt stress response and provided new insight into the ethylene modulated salt stress response.

引用

页码：181 / 188

页数：8

共 53 条

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