Temporal control of trichome distribution by microrna156-targeted spl genes in arabidopsis thaliana
文献类型：期刊论文
| 作者 | Yu, Nan1,2; Cai, Wen-Juan1,2; Wang, Shucai3; Shan, Chun-Min1,2; Wang, Ling-Jian1; Chen, Xiao-Ya1 |
| 刊名 | Plant cell
 |
| 出版日期 | 2010-07-01 |
| 卷号 | 22期号:7页码:2322-2335 |
| ISSN号 | 1040-4651 |
| DOI | 10.1105/tpc.109.072579 |
| 通讯作者 | Chen, xiao-ya(xychen@sibs.ac.cn) |
| 英文摘要 | The production and distribution of plant trichomes is temporally and spatially regulated. after entering into the flowering stage, arabidopsis thaliana plants have progressively reduced numbers of trichomes on the inflorescence stem, and the floral organs are nearly glabrous. we show here that squamosa promoter binding protein like (spl) genes, which define an endogenous flowering pathway and are targeted by microrna 156 (mir156), temporally control the trichome distribution during flowering. plants overexpressing mir156 developed ectopic trichomes on the stem and floral organs. by contrast, plants with elevated levels of spls produced fewer trichomes. during plant development, the increase in spl transcript levels is coordinated with the gradual loss of trichome cells on the stem. the myb transcription factor genes trichomeless1 (tcl1) and triptychon (try) are negative regulators of trichome development. we show that spl9 directly activates tcl1 and try expression through binding to their promoters and that this activation is independent of glabrous1 (gl1). the phytohormones cytokinin and gibberellin were reported to induce trichome formation on the stem and inflorescence via the c2h2 transcription factors gis, gis2, and zfp8, which promote gl1 expression. we show that the gis-dependent pathway does not affect the regulation of tcl1 and try by mir156-targeted spls, represented by spl9. these results demonstrate that the mir156-regulated spls establish a direct link between developmental programming and trichome distribution. |
| WOS关键词 | EPIDERMAL-CELL FATE ; TRANSCRIPTION FACTOR ; DOMAIN PROTEIN ; DNA-BINDING ; SBP-DOMAIN ; ANTHOCYANIN BIOSYNTHESIS ; SHOOT MATURATION ; MYB GENE ; ROOT ; DIFFERENTIATION |
| 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 |
| WOS记录号 | WOS:000282432700018 |
| 出版者 | AMER SOC PLANT BIOLOGISTS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2405659 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Chen, Xiao-Ya |
| 作者单位 | 1.Shanghai Inst Biol Sci, Inst Plant Physiol & Ecol, Natl Key Lab Plant Mol Genet, Shanghai 200032, Peoples R China 2.Chinese Acad Sci, Grad Sch, Shanghai 200032, Peoples R China 3.Univ British Columbia, Dept Bot, Vancouver, BC V6T 1Z4, Canada |
| 推荐引用方式 GB/T 7714 | Yu, Nan,Cai, Wen-Juan,Wang, Shucai,et al. Temporal control of trichome distribution by microrna156-targeted spl genes in arabidopsis thaliana[J]. Plant cell,2010,22(7):2322-2335. |
| APA | Yu, Nan,Cai, Wen-Juan,Wang, Shucai,Shan, Chun-Min,Wang, Ling-Jian,&Chen, Xiao-Ya.(2010).Temporal control of trichome distribution by microrna156-targeted spl genes in arabidopsis thaliana.Plant cell,22(7),2322-2335. |
| MLA | Yu, Nan,et al."Temporal control of trichome distribution by microrna156-targeted spl genes in arabidopsis thaliana".Plant cell 22.7(2010):2322-2335. |
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来源：中国科学院大学
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