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The calcium sensor PeCBL1, interacting with PeCIPK24/25 and PeCIPK26, regulates Na+/K+ homeostasis in Populus euphratica

文献类型： 外文期刊

作者： Zhang, Hechen 1 ; Lv, Fuling 1 ; Han, Xiao 1 ; Xia, Xinli 1 ; Yin, Weilun 1 ;

作者机构： 1.Beijing Forestry Univ, Coll Biol Sci & Biotechnol, Natl Engn Lab Forest Genet & Tree Breeding, Beijing 100083, Peoples R China

2.Henan Acad Agr Sci, Inst Hort Res, Zhengzhou 450002, Henan Province, Peoples R China

关键词： Populus euphratica;Signal transduction pathway;Low K+ stress;Salt stress;PeCBL1

期刊名称：PLANT CELL REPORTS （ 影响因子：4.57； 五年影响因子：4.463 ）

ISSN： 0721-7714

年卷期： 2013 年 32 卷 5 期

页码：

收录情况： SCI

摘要： This paper is the first to directly link two types of ion channel regulation pathway into an emerging and complex CBL-CIPK signal system in wooden plant. In Arabidopsis thaliana, the calcineurin b-like (CBL) 1 gene has been shown to be necessary in response to abiotic stresses. In this study, we identified CBL1 in the woody plant Populus euphratica, designated as PeCBL1. Heterologous expression of PeCBL1 could build the resistance of sensitive phenotypes to low K+ stress in the corresponding Arabidopsis cbl1/cbl9 mutant, and display a salt-sensitive phenotype compared with the mutant. Protein interaction analysis showed that PeCBL1 can interact with PeCIPK24, 25 and 26, and form different complexes of PeCBL-PeCIPK. To further investigate the mechanism of PeCBL1, we analyzed the fluxes of K+ and Na+ in roots of the wild-type Arabidopsis, cbl1/9 mutant, and PeCBL1 transgenic plants under low K+ stress and high Na+ stress. These analyses revealed that, compared to the cbl1/9 mutant, the PeCBL1 transgenic plant roots exhibited a higher capacity to absorb K+ after exposure to low K+ stress, and a lower capacity to discharge Na+ after exposure to salt stress. The results suggest that CBL1 interacts with CIPK24, CIPK25 and CIPK26 to regulate Na+/K+ homeostasis in Populus euphratica.

  • 相关文献

[1]Expression profiling and functional characterization of a CBL-interacting protein kinase gene from Populus euphratica. Lv, Fuling,Xia, Xinli,Yin, Weilun,Zhang, Hechen.

[2]Two poplar calcineurin B-like proteins confer enhanced tolerance to abiotic stresses in transgenic Arabidopsis thaliana. Li, D. -D.,Xia, X. -L.,Yin, W. -L.,Zhang, H. -C.,Zhang, H. -C.. 2013

[3]Molybdenum Affects Photosynthesis and Ionic Homeostasis of Chinese Cabbage under Salinity Stress. Hu, Chengxiao,Sun, Xuecheng,Zhao, Xiaohu,Tan, Qiling,Zhang, Ying,Zhang, Mu,Li, Na.

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[5]Arabidopsis LOS5 Gene Enhances Chilling and Salt Stress Tolerance in Cucumber. Liu Li-ying,Duan Liu-sheng,Zhang Jia-chang,Zhang Xiao-lan,Zhang Zhen-xian,Ren Hua-zhong,Mi Guo-quan. 2013

[6]Identification of early salt stress responsive proteins in seedling roots of upland cotton (Gossypium hirsutum L.) employing iTRAQ-based proteomic technique. Li, Wu,Li, Wu,Zhao, Fu'an,Fang, Weiping,Xie, Deyi,Hou, Jianan,Yang, Xiaojie,Zhao, Yuanming,Tang, Zhongjie,Nie, Lihong,Lv, Shuping. 2015

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