Characterization of CBL-CIPK signaling complexes and their involvement in cold response in tea plant
文献类型： 外文期刊
第一作者： Wang, Lu
作者： Wang, Lu;Feng, Xia;Yao, Lina;Ding, Changqing;Lei, Lei;Hao, Xinyuan;Li, Nana;Zeng, Jianming;Yang, Yajun;Wang, Xinchao;Wang, Lu;Hao, Xinyuan;Li, Nana;Zeng, Jianming;Yang, Yajun;Wang, Xinchao
作者机构：
关键词： Abiotic stress; Calcium; CBL-CIPK; Cold response; Tea plant (Camellia sinensis)
期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：4.27； 五年影响因子：4.816 ）
ISSN： 0981-9428
年卷期： 2020 年 154 卷
页码：
收录情况： SCI
摘要： Calcineurin B-like (CBL) proteins, a class of Ca2+-binding proteins, play vital roles in calcium signal transduction by interacting specifically with CBL-interacting protein kinases (CIPKs), and these two gene families and their interacting complexes are involved in regulating plant responses to various environmental stimuli. In the present study, eight CBL and 25 CIPK genes were identified in tea plant and divided into four and five subfamilies, respectively. Analysis of the expression of these genes in response to abiotic stresses (mature leaves treated with cold, salinity, and PEG and young shoots treated with cold) revealed that CsCBL1/3/5 and CsCIPK1/4/5/6a/7/8/10b/10c/12/14a/19/23a/24 could be induced by at least two stresses. Under cold stress, CsCBL9 and CsCIPK4/6a/6b/7/1/14b/19/20 were upregulated in both mature leaves and young shoots, CsCBL1/3/5 and CsCIPK1/8/10a/10b/10c/12/14a/23a/24 were induced only in mature leaves, and CsCIPK5/25 were induced only in young shoots. Yeast two-hybrid analysis showed that CsCBL1 could interact with CsCIPK1/10b/12 but not with CsCIPK6a/7/11/14b/20. CsCBL9 was found to interact with CsCIPK1/10b/12/14b but not with CsCIPK6a/7/11/20. These results suggest divergent responses to cold stress regulated by CBL-CIPK complexes between tea plant and Arabidopsis, as well as between mature leaves and young shoots in tea plant. A model of Ca2+ -CsCBL-CsCIPK module-mediated abiotic stress signaling in tea plant is proposed.
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