| Control of root cap formation by microrna-targeted auxin response factors in arabidopsis | |
| Wang, JW; Wang, LJ; Mao, YB; Cai, WJ; Xue, HW; Chen, XY | |
| 刊名 | Plant cell
 |
| 2005-08-01 | |
| 卷号 | 17期号:8页码:2204-2216 |
| ISSN号 | 1040-4651 |
| DOI | 10.1105/tpc.105.033076 |
| 通讯作者 | Chen, xy() |
| 英文摘要 | The plant root cap mediates the direction of root tip growth and protects internal cells. root cap cells are continuously produced from distal stem cells, and the phytohormone auxin provides position information for root distal organization. here, we identify the arabidopsis thaliana auxin response factors arf10 and arf16, targeted by microrna160 ( mir160), as the controller of root cap cell formation. the pro(35s): mir160 plants, in which the expression of arf10 and arf16 is repressed, and the arf10- 2 arf16- 2 double mutants display the same root tip defect, with uncontrolled cell division and blocked cell differentiation in the root distal region and show a tumor- like root apex and loss of gravity- sensing. arf10 and arf16 play a role in restricting stem cell niche and promoting columella cell differentiation; although functionally redundant, the two arfs are indispensable for root cap development, and the auxin signal cannot bypass them to initiate columella cell production. in root, auxin and mir160 regulate the expression of arf10 and arf16 genes independently, generating a pattern consistent with root cap development. we further demonstrate that mir160- uncoupled production of arf16 exerts pleiotropic effects on plant phenotypes, and mir160 plays an essential role in regulating arabidopsis development and growth. |
| WOS关键词 | BINDING-PROTEIN HYL1 ; STEM-CELL NICHE ; TRANSCRIPTION FACTOR ; DIFFERENTIAL GROWTH ; PLANT DEVELOPMENT ; AUX/IAA PROTEINS ; HOBBIT GENE ; THALIANA ; EXPRESSION ; MERISTEM |
| WOS研究方向 | Biochemistry & Molecular Biology ; Plant Sciences ; Cell Biology |
| WOS类目 | Biochemistry & Molecular Biology ; Plant Sciences ; Cell Biology |
| 语种 | 英语 |
| 出版者 | AMER SOC PLANT BIOLOGISTS |
| WOS记录号 | WOS:000230918000006 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2377228 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Chen, XY |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Biol Sci, Natl Key Lab Plant Mol Genet, Inst Plant Physiol & Ecol, Shanghai 200032, Peoples R China 2.Chinese Acad Sci, Grad Sch, Shanghai 200032, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, JW,Wang, LJ,Mao, YB,et al. Control of root cap formation by microrna-targeted auxin response factors in arabidopsis[J]. Plant cell,2005,17(8):2204-2216. |
| APA | Wang, JW,Wang, LJ,Mao, YB,Cai, WJ,Xue, HW,&Chen, XY.(2005).Control of root cap formation by microrna-targeted auxin response factors in arabidopsis.Plant cell,17(8),2204-2216. |
| MLA | Wang, JW,et al."Control of root cap formation by microrna-targeted auxin response factors in arabidopsis".Plant cell 17.8(2005):2204-2216. |
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