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CIPK23 is involved in iron acquisition of Arabidopsis by affecting ferric chelate reductase activity

文献类型：期刊论文

作者Tian, Qiuying; Zhang, Xinxin1; Yang, An; Wang, Tianzuo; Zhang, Wen-Hao
刊名PLANT SCIENCE
出版日期2016
卷号246页码:70-79
关键词Arabidopsis Iron acquisition Ferric chelate reductase CIPK Cytosolic Ca2+ concentration
ISSN号0168-9452
DOI10.1016/j.plantsci.2016.01.010
文献子类Article
英文摘要Iron deficiency is one of the major limiting factors affecting quality and production of crops in calcareous soils. Numerous signaling molecules and transcription factors have been demonstrated to play a regulatory role in adaptation of plants to iron deficiency. However, the mechanisms underlying the iron deficiency-induced physiological processes remain to be fully dissected. Here, we demonstrated that the protein kinase CIPK23 was involved in iron acquisition. Lesion of CIPK23 rendered Arabidopsis mutants hypersensitive to iron deficiency, as evidenced by stronger chlorosis in young leaves and lower iron concentration than wild-type plants under iron-deficient conditions by down-regulating ferric chelate reductase activity. We found that iron deficiency evoked an increase in cytosolic Ca2+ concentration and the elevated Ca2+ would bind to CBL1/CBL9, leading to activation of CIPK23. These novel findings highlight the involvement of calcium-dependent CBL-CIPK23 complexes in the regulation of iron acquisition. Moreover, mutation of CIPK23 led to changes in contents of mineral elements, suggesting that CBL-CIPK23 complexes could be as nutritional sensors to sense and regulate the mineral homeostasis in Arabisopsis. (C) 2016 Elsevier Ireland Ltd. All rights reserved.
学科主题Biochemistry & Molecular Biology ; Plant Sciences
出版地CLARE
WOS关键词B-LIKE PROTEINS ; CALCIUM SENSORS ; METAL TRANSPORTER ; ABSCISIC-ACID ; NITRIC-OXIDE ; GENE-EXPRESSION ; H+-ATPASE ; DEFICIENCY ; ROOT ; KINASE
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000373545500007
出版者ELSEVIER IRELAND LTD
资助机构Chinese Academy of SciencesChinese Academy of Sciences [KSCX2-EW-Q-20] ; National Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31071844]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/25189]  
专题植被与环境变化国家重点实验室
作者单位1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
2.Univ Munster, Inst Biol & Biotechnol Pflanzen, Schlossplatz 4, D-48149 Munster, Germany
推荐引用方式
GB/T 7714		 Tian, Qiuying,Zhang, Xinxin,Yang, An,et al. CIPK23 is involved in iron acquisition of Arabidopsis by affecting ferric chelate reductase activity[J]. PLANT SCIENCE,2016,246:70-79.
APA Tian, Qiuying,Zhang, Xinxin,Yang, An,Wang, Tianzuo,&Zhang, Wen-Hao.(2016).CIPK23 is involved in iron acquisition of Arabidopsis by affecting ferric chelate reductase activity.PLANT SCIENCE,246,70-79.
MLA Tian, Qiuying,et al."CIPK23 is involved in iron acquisition of Arabidopsis by affecting ferric chelate reductase activity".PLANT SCIENCE 246(2016):70-79.

入库方式： OAI收割

来源：植物研究所

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