文献类型：期刊文献

英文题名：NtCIPK9: A Calcineurin B-Like Protein-Interacting Protein Kinase From the HalophyteNitraria tangutorum, Enhances Arabidopsis Salt Tolerance

作者：Lu, Lu[1] Chen, Xinying[1] Zhu, Liming[1] Li, Mengjuan[1] Zhang, Jingbo[2] Yang, Xiuyan[3] Wang, Pengkai[1] Lu, Ye[1] Cheng, Tielong[1] Shi, Jisen[1] Yi, Yin[4,5] Chen, Jinhui[1]

第一作者：Lu, Lu

通信作者：Chen, JH[1]

机构：[1]Nanjing Forestry Univ, Coinnovat Ctr Sustainable Forestry Southern China, Key Lab Forestry Genet & Biotechnol, Minist Educ, Nanjing, Peoples R China;[2]Chinese Acad Forestry, Expt Ctr Desert Forestry, Dengkou, Peoples R China;[3]China Acad Forestry, Res Ctr Saline & Alkali Land, Natl Forestry & Grassland Adm, Beijing, Peoples R China;[4]Guizhou Normal Univ, State Forestry Adm, Key Lab Biodivers Conservat Karst Mt Areas Southw, Guiyang, Peoples R China;[5]Guizhou Normal Univ, Guizhou Prov Key Lab Plant Physiol & Dev Regulat, Guiyang, Peoples R China

年份：2020

卷号：11

外文期刊名：FRONTIERS IN PLANT SCIENCE

收录：;Scopus(收录号：2-s2.0-85090386618);WOS:【SCI-EXPANDED(收录号:WOS:000568266100001)】；

基金：This research was supported by Key research and development plan of Jiangsu Province (BE2017376), Foundation of Jiangsu forestry bureau (LYKJ[2017]42), the Nature Science Foundation of China (31770715), the Qinglan project of Jiangsu province, A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Insitutions (PAPD), Natural Science Foundation of Jiangsu Province (BK20181176) and the Joint Fund of the Natural Science Foundation of China and the Karst Science Research Center of Guizhou Province (Grant No. U1812401).

语种：英文

外文关键词：halophyte; Nitraria tangutorum; CIPK9; ion homeostasis; salt tolerance

摘要：Calcineurin B-like protein-interacting protein kinases (CIPKs) play essential roles in plant abiotic stress response. In order to better understand salt tolerance, we cloned and analyzed theNtCIPK9gene from the halophyteNitraria tangutorum. Phylogenetic analysis shows thatNtCIPK9belongs to a sister clade with theArabidopsis AtCIPK9gene and is thought to localize to the plasma membrane.NtCIPK9shows the highest expression level in theNitraria tangutorumroot under normal growth conditions, whereas after NaCl treatment, the highest expression was found in the blade.NtCIPK9-overexpressing Arabidopsis plants have a higher seed germination rate, longer root length, and displayed higher salt tolerance than wild type seedlings under salt stress conditions. Furthermore,NtCIPK9overexpression might enhance the expression of genes related to K(+)transportation after NaCl treatment. Thus, we conclude thatNtCIPK9increases transgenic plant salt tolerance and reduces damage associated with salt stress by promoting the expression of genes controlling ion homeostasis. Our results suggest thatNtCIPK9could serve as an ideal candidate gene to genetically engineer salt-tolerant plants.