The AtGSTU7 gene influences glutathione-dependent seed germination under ABA and osmotic stress in Arabidopsis

文献类型： 外文期刊

第一作者： Wu, Juan

作者： Wu, Juan;Zhang, Nan;Lin, Jianhui;Yang, He;Liu, Ziguang;Liu, Shengyi;Liu, Chunxiao;Li, Shuang;Yukawa, Yasushi

作者机构：

关键词： Glutathione S-Transferases; Seed germination; ABA signaling; Reactive oxygen species

期刊名称：BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS （ 影响因子：3.575； 五年影响因子：3.381 ）

ISSN： 0006-291X

年卷期： 2020 年 528 卷 3 期

页码：

收录情况： SCI

摘要： Glutathione S-transferases (GSTs) play important roles in metabolism and detoxification of plant cells. However, their functions during development are less well understood. Arabidopsis AtGSTU7 (AT2G29420) encodes a Tau class GST. Here we provide the AtGSTU7 was abundantly expressed in seeds and in roots at an early stage of germination. AtGSTU7 expression was repressed by exogenous ABA and promoted by osmotic stress. A null mutant of AtGSTU7 (atgstu7) accumulated higher contents of reduced GSH and decreased amounts of endogenous H2O2 in seedlings. The atgstu7 plants showed decreased osmotic tolerance during seed germination, which was influenced by GSH and ABI3 gene expression. The results suggested that AtGSTU7 involvement in seed germination is mediated by GSH-ROS homeostasis and ABA signaling. (C) 2020 Elsevier Inc. All rights reserved.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序