VLN2 Regulates Plant Architecture by Affecting Microfilament Dynamics and Polar Auxin Transport in Rice
文献类型：期刊论文
| 作者 | Wu, Shengyang4; Xie, Yurong3; Zhang, Junjie4; Ren, Yulong4; Zhang, Xin4; Wang, Jiulin4; Guo, Xiuping4; Wu, Fuqing4; Sheng, Peike4; Wang, Juan1 |
| 刊名 | PLANT CELL
 |
| 出版日期 | 2015 |
| 卷号 | 27期号:10页码:2829-2845 |
| ISSN号 | 1040-4651 |
| DOI | 10.1105/tpc.15.00581 |
| 文献子类 | Article |
| 英文摘要 | 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. |
| 学科主题 | Biochemistry & Molecular Biology ; Plant Sciences ; Cell Biology |
| 出版地 | ROCKVILLE |
| 电子版国际标准刊号 | 1532-298X |
| 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) |
| 语种 | 英语 |
| WOS记录号 | WOS:000368293600018 |
| 出版者 | AMER SOC PLANT BIOLOGISTS |
| 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] |
| 源URL | [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.Chinese Acad Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing 100093, Peoples R China 2.Tsinghua Univ, Sch Life Sci, Ctr Plant Biol, Beijing 100084, Peoples R China 3.Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China 4.Nanjing Agr Univ, Jiangsu Plant Gene Engn Res Ctr, State Key Lab Crop Genet & Germplasm Enhancement, Nanjing 210095, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | 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. |
入库方式： OAI收割
来源：植物研究所
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