文献类型：期刊文献

英文题名：Arabidopsis cysteine-rich receptor-like kinase 45 positively regulates disease resistance to Pseudomonas syringae

作者：Zhang, Xiujuan[1,2] Han, Xiaomin[1] Shi, Rui[1] Yang, Guanyu[1] Qi, Liwang[3] Wang, Ruigang[1] Li, Guojing[1]

第一作者：Zhang, Xiujuan

通信作者：Li, GJ[1]

机构：[1]Inner Mongolia Agr Univ, Coll Life Sci, Hohhot 010018, Inner Mongolia, Peoples R China;[2]Inner Mongolia Inst Biotechnol, Hohhot 010070, Inner Mongolia, Peoples R China;[3]Chinese Acad Forestry, Res Inst Forestry, Beijing 100091, Peoples R China

年份：2013

卷号：73

起止页码：383-391

外文期刊名：PLANT PHYSIOLOGY AND BIOCHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000329007000046)】；

基金：We thank Dr. Yiji Xia for the crk45 and wrky70 mutants, Dr. Jianmin Zhou for providing the P. syringae strains, and Dr. Xinnian Dong for the npr1 and cpr5 mutants. This work was supported by the grants from National Natural Science Foundation and Ministry of Education of China (grant nos. 30860029 and NCET-11-1020 to R.W.), and from Ministry of Science and Technology of China and Inner Mongolia Agricultural University (grant nos. 2011AA100203 and NDPYTD2010-3 to G. L.)

语种：英文

外文关键词：Arabidopsis thaliana; CRK45; NPR1; Pseudomonas syringae; Receptor-like protein kinase; Salicylic acid; WRKY70

摘要：Arabidopsis cysteine-rich receptor-like protein kinase 45 (CRK45) was found to be involved in ABA signaling in Arabidopsis thaliana previously. Here, we reported that it also positively regulates disease resistance. The CRK45 overexpression plants increased expression of the defense genes, and enhanced resistance to Pseudomonas syringae whereas the crk45 mutant were more sensitive to P. syringae and weakened expression of the defense genes, compared to the wild type. We also found that treatment with P. syringae leads to a declined expression of CRK45 in the npr1 mutant and the NahG transgenic plants. At the same time, significantly decreased expression of CRK45 transcript in the wrky70 mutant than that in the wild type was also detected. Our results suggested that CRK45 acted as a positive regulator in Arabidopsis disease resistance, and was regulated downstream of NPR1 and WRKY70 at the transcriptional level. (C) 2013 Elsevier Masson SAS. All rights reserved.