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CASEIN KINASE1-LIKE PROTEIN2 Regulates Actin Filament Stability and Stomatal Closure via Phosphorylation of Actin Depolymerizing Factor
Zhao, Shuangshuang1; Jiang, Yuxiang2; Zhao, Yang1; Huang, Shanjin2,3; Yuan, Ming1; Zhao, Yanxiu; Guo, Yan1
2016
发表期刊PLANT CELL
ISSN1040-4651
卷号28期号:6页码:1422-1439
摘要The opening and closing of stomata are crucial for plant photosynthesis and transpiration. Actin filaments undergo dynamic reorganization during stomatal closure, but the underlying mechanism for this cytoskeletal reorganization remains largely unclear. In this study, we identified and characterized Arabidopsis thaliana casein kinase 1-like protein 2 (CKL2), which responds to abscisic acid (ABA) treatment and participates in ABA- and drought-induced stomatal closure. Although CKL2 does not bind to actin filaments directly and has no effect on actin assembly in vitro, it colocalizes with and stabilizes actin filaments in guard cells. Further investigation revealed that CKL2 physically interacts with and phosphorylates actin depolymerizing factor 4 (ADF4) and inhibits its activity in actin filament disassembly. During ABA-induced stomatal closure, deletion of CKL2 in Arabidopsis alters actin reorganization in stomata and renders stomatal closure less sensitive to ABA, whereas deletion of ADF4 impairs the disassembly of actin filaments and causes stomatal closure to be more sensitive to ABA. Deletion of ADF4 in the ckl2 mutant partially recues its ABA-insensitive stomatal closure phenotype. Moreover, Arabidopsis ADFs from subclass I are targets of CKL2 in vitro. Thus, our results suggest that CKL2 regulates actin filament reorganization and stomatal closure mainly through phosphorylation of ADF.
学科领域Biochemistry & Molecular Biology ; Plant Sciences ; Cell Biology
DOI10.1105/tpc.16.00078
收录类别SCI
语种英语
WOS关键词POLLEN-TUBE GROWTH ; ABSCISIC-ACID ; GUARD-CELLS ; HYDROGEN-PEROXIDE ; SIGNAL-TRANSDUCTION ; COFILIN PHOSPHORYLATION ; INTERACTING PROTEIN-1 ; BINDING PROTEIN ; CORTICAL ARRAY ; NITRIC-OXIDE
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号WOS:000380689400018
出版者AMER SOC PLANT BIOLOGISTS
文献子类Article
出版地ROCKVILLE
EISSN1532-298X
资助机构National Basic Research Program of ChinaNational Basic Research Program of China [2015CB910202] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31430012] ; Foundation for Innovative Research Group of the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31121002]
作者邮箱zhaoyx@sdnu.edu.cn ; guoyan@cau.edu.cn
作品OA属性Green Published, Bronze
引用统计
被引频次:77[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/2S10CLM1/25352
专题中科院植物分子生理学重点实验室
作者单位1.Shandong Normal Univ, Life Sci Coll, Key Lab Plant Stress, Jinan 250014, Peoples R China
2.China Agr Univ, Coll Biol Sci, State Key Lab Plant Physiol & Biochem, Beijing 100193, Peoples R China
3.Chinese Acad Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing 100093, Peoples R China
4.Tsinghua Univ, Sch Life Sci, Ctr Plant Biol, Beijing 100084, Peoples R China
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Zhao, Shuangshuang,Jiang, Yuxiang,Zhao, Yang,et al. CASEIN KINASE1-LIKE PROTEIN2 Regulates Actin Filament Stability and Stomatal Closure via Phosphorylation of Actin Depolymerizing Factor[J]. PLANT CELL,2016,28(6):1422-1439.
APA Zhao, Shuangshuang.,Jiang, Yuxiang.,Zhao, Yang.,Huang, Shanjin.,Yuan, Ming.,...&Guo, Yan.(2016).CASEIN KINASE1-LIKE PROTEIN2 Regulates Actin Filament Stability and Stomatal Closure via Phosphorylation of Actin Depolymerizing Factor.PLANT CELL,28(6),1422-1439.
MLA Zhao, Shuangshuang,et al."CASEIN KINASE1-LIKE PROTEIN2 Regulates Actin Filament Stability and Stomatal Closure via Phosphorylation of Actin Depolymerizing Factor".PLANT CELL 28.6(2016):1422-1439.
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