IB-CAS  > 中科院植物分子生理学重点实验室
VLN2 Regulates Plant Architecture by Affecting Microfilament Dynamics and Polar Auxin Transport in Rice
Wu, Shengyang1; Xie, Yurong2; Zhang, Junjie1; Ren, Yulong1; Zhang, Xin1; Wang, Jiulin1; Guo, Xiuping1; Wu, Fuqing1; Sheng, Peike1; Wang, Juan3; Wu, Chuanyin1; Wang, Haiyang1; Huang, Shanjin2,3; Wan, Jianmin1
2015
发表期刊PLANT CELL
ISSN1040-4651
卷号27期号:10页码:2829-2845
摘要As a fundamental and dynamic cytoskeleton network, microfilaments (MFs) are regulated by diverse actin binding proteins (ABPs). Villins are one type of ABPs belonging to the villin/gelsolin superfamily, and their function is poorly understood in monocotyledonous plants. Here, we report the isolation and characterization of a rice (Oryza sativa) mutant defective in VILLIN2 (VLN2), which exhibits malformed organs, including twisted roots and shoots at the seedling stage. Cellular examination revealed that the twisted phenotype of the vln2 mutant is mainly caused by asymmetrical expansion of cells on the opposite sides of an organ. VLN2 is preferentially expressed in growing tissues, consistent with a role in regulating cell expansion in developing organs. Biochemically, VLN2 exhibits conserved actin filament bundling, severing and capping activities in vitro, with bundling and stabilizing activity being confirmed in vivo. In line with these findings, the vln2 mutant plants exhibit a more dynamic actin cytoskeleton network than the wild type. We show that vln2 mutant plants exhibit a hypersensitive gravitropic response, faster recycling of PIN2 (an auxin efflux carrier), and altered auxin distribution. Together, our results demonstrate that VLN2 plays an important role in regulating plant architecture by modulating MF dynamics, recycling of PIN2, and polar auxin transport.
学科领域Biochemistry & Molecular Biology ; Plant Sciences ; Cell Biology
DOI10.1105/tpc.15.00581
收录类别SCI
语种英语
WOS关键词ACTIN-BINDING-PROTEINS ; MICROTUBULE-ASSOCIATED PROTEIN ; APICAL HOOK DEVELOPMENT ; POLLEN-TUBE GROWTH ; II FORMIN FH5 ; ARABIDOPSIS-THALIANA ; ROOT GRAVITROPISM ; CORTICAL ARRAY ; HELICAL GROWTH ; ORYZA-SATIVA
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号WOS:000368293600018
出版者AMER SOC PLANT BIOLOGISTS
文献子类Article
出版地ROCKVILLE
EISSN1532-298X
资助机构National Natural Science Foundation [31371601, 31125004] ; National Transformation Science and Technology Program [2014ZX08009-003, 2014ZX08010-004] ; 863 Program [2011AA101101] ; National Science and Technology Support Program [2011BAD35B02-02, 2013BAD01B02-16] ; Jiangsu Science and Technology Development Program [BE2012303] ; Jiangsu Province 333 Talents Project [BRA2012126]
作者邮箱sjhuang@ibcas.ac.cn ; wanjianmin@caas.cn
作品OA属性Green Published, Bronze
引用统计
被引频次:48[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/2S10CLM1/25737
专题中科院植物分子生理学重点实验室
作者单位1.Nanjing Agr Univ, Jiangsu Plant Gene Engn Res Ctr, State Key Lab Crop Genet & Germplasm Enhancement, Nanjing 210095, Jiangsu, Peoples R China
2.Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, 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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Wu, Shengyang,Xie, Yurong,Zhang, Junjie,et al. VLN2 Regulates Plant Architecture by Affecting Microfilament Dynamics and Polar Auxin Transport in Rice[J]. PLANT CELL,2015,27(10):2829-2845.
APA Wu, Shengyang.,Xie, Yurong.,Zhang, Junjie.,Ren, Yulong.,Zhang, Xin.,...&Wan, Jianmin.(2015).VLN2 Regulates Plant Architecture by Affecting Microfilament Dynamics and Polar Auxin Transport in Rice.PLANT CELL,27(10),2829-2845.
MLA Wu, Shengyang,et al."VLN2 Regulates Plant Architecture by Affecting Microfilament Dynamics and Polar Auxin Transport in Rice".PLANT CELL 27.10(2015):2829-2845.
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