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

doi:10.1016/j.plantsci.2016.01.010

	CIPK23 is involved in iron acquisition of Arabidopsis by affecting ferric chelate reductase activity
	Tian, Qiuying ; Zhang, Xinxin 1; Yang, An ; Wang, Tianzuo ; Zhang, Wen-Hao
	2016
发表期刊	PLANT SCIENCE
ISSN	0168-9452
卷号	246 页码:70-79
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.
关键词	Arabidopsis Iron acquisition Ferric chelate reductase CIPK Cytosolic Ca2+ concentration
学科领域	Biochemistry & Molecular Biology ; Plant Sciences
DOI	10.1016/j.plantsci.2016.01.010
收录类别	SCI
语种	英语
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)
WOS记录号	WOS:000373545500007
出版者	ELSEVIER IRELAND LTD
文献子类	Article
出版地	CLARE
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]
作者邮箱	whzhang@ibcas.ac.cn
作品OA属性	Bronze
引用统计	被引频次：55[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	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.

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