Arabidopsis AIP1-1 regulates the organization of apical actin filaments by promoting their turnover in pollen tubes
文献类型：期刊论文
| 作者 | Diao, Min1,3; Li, Xin2; Huang, Shanjin1 |
| 刊名 | SCIENCE CHINA-LIFE SCIENCES
 |
| 出版日期 | 2020 |
| 卷号 | 63期号:2页码:239-250 |
| 关键词 | pollen tube apical actin structure actin dynamics actin turnover ADF AIP1 |
| ISSN号 | 1674-7305 |
| DOI | 10.1007/s11427-019-9532-0 |
| 文献子类 | Article |
| 英文摘要 | Apical actin filaments are highly dynamic structures that are crucial for rapid pollen tube growth, but the mechanisms regulating their dynamics and spatial organization remain incompletely understood. We here identify that AtAIP1-1 is important for regulating the turnover and organization of apical actin filaments in pollen tubes. AtAIP1-1 is distributed uniformly in the pollen tube and loss of function of AtAIP1-1 affects the organization of the actin cytoskeleton in the pollen tube. Specifically, actin filaments became disorganized within the apical region of aip1-1 pollen tubes. Consistent with the role of apical actin filaments in spatially restricting vesicles in pollen tubes, the apical region occupied by vesicles becomes enlarged in aip1-1 pollen tubes compared to WT. Using ADF1 as a representative actin-depolymerizing factor, we demonstrate that AtAIP1-1 enhances ADF1-mediated actin depolymerization and filament severing in vitro, although AtAIP1-1 alone does not have an obvious effect on actin assembly and disassembly. The dynamics of apical actin filaments are reduced in aip1-1 pollen tubes compared to WT. Our study suggests that AtAIP1-1 works together with ADF to act as a module in regulating the dynamics of apical actin filaments to facilitate the construction of the unique apical actin structure in the pollen tube. |
| 学科主题 | Biology |
| 出版地 | BEIJING |
| 电子版国际标准刊号 | 1869-1889 |
| WOS关键词 | DEPOLYMERIZING FACTORS ADF7 ; INTERACTING PROTEIN-1 ; POLARIZED GROWTH ; BINDING PROTEINS ; DYNAMICS ; POLYMERIZATION ; GERMINATION ; HOMOLOG ; COFILIN ; COMPLEX |
| WOS研究方向 | Life Sciences & Biomedicine - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000511741500006 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/21924]  |
| 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, Beijing 100093, Peoples R China 2.Tsinghua Univ, Sch Life Sci, Ctr Plant Biol, Beijing 100084, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Shanghai Tech Univ, IHuman Inst, Shanghai 201210, Peoples R China |
| 推荐引用方式 GB/T 7714 | Diao, Min,Li, Xin,Huang, Shanjin. Arabidopsis AIP1-1 regulates the organization of apical actin filaments by promoting their turnover in pollen tubes[J]. SCIENCE CHINA-LIFE SCIENCES,2020,63(2):239-250. |
| APA | Diao, Min,Li, Xin,&Huang, Shanjin.(2020).Arabidopsis AIP1-1 regulates the organization of apical actin filaments by promoting their turnover in pollen tubes.SCIENCE CHINA-LIFE SCIENCES,63(2),239-250. |
| MLA | Diao, Min,et al."Arabidopsis AIP1-1 regulates the organization of apical actin filaments by promoting their turnover in pollen tubes".SCIENCE CHINA-LIFE SCIENCES 63.2(2020):239-250. |
入库方式： OAI收割
来源：植物研究所
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