Osgsr1 is involved in crosstalk between gibberellins and brassinosteroids in rice
文献类型：期刊论文
| 作者 | Wang, Li1,5; Wang, Zhen1; Xu, Yunyuan1; Joo, Se-Hwan3; Kim, Seong-Ki3; Xue, Zhen1; Xu, Zhihong1,4; Wang, Zhiyong1,2; Chong, Kang1,4 |
| 刊名 | Plant journal
 |
| 出版日期 | 2009-02-01 |
| 卷号 | 57期号:3页码:498-510 |
| 关键词 | Osgsr1 Rice Phytohormone Gibberellins Brassinosteroids Crosstalk |
| ISSN号 | 0960-7412 |
| DOI | 10.1111/j.1365-313x.2008.03707.x |
| 通讯作者 | Chong, kang(chongk@ibcas.ac.cn) |
| 英文摘要 | Gibberellins (gas) and brassinosteroids (brs), two growth-promoting phytohormones, regulate many common physiological processes. their interactions at the molecular level remain unclear. here, we demonstrate that osgsr1, a member of the gast (ga-stimulated transcript) gene family, is induced by ga and repressed by br. rna interference (rnai) transgenic rice plants with reduced osgsr1 expression show phenotypes similar to plants deficient in br, including short primary roots, erect leaves and reduced fertility. the osgsr1 rnai transgenic rice shows a reduced level of endogenous br, and the dwarf phenotype could be rescued by the application of brassinolide. the yeast two-hybrid assay revealed that osgsr1 interacts with dim/dwf1, an enzyme that catalyzes the conversion from 24-methylenecholesterol to campesterol in br biosynthesis. these results suggest that osgsr1 activates br synthesis by directly regulating a br biosynthetic enzyme at the post-translational level. furthermore, osgsr1 rnai plants show a reduced sensitivity to ga treatment, an increased expression of the ga biosynthetic gene osga20ox2, which is feedback inhibited by ga signaling, and an elevated level of endogenous ga: together, these suggest that osgsr1 is a positive regulator of ga signaling. these results demonstrate that osgsr1 plays important roles in both br and ga pathways, and also mediates an interaction between the two signaling pathways. |
| WOS关键词 | BIMOLECULAR FLUORESCENCE COMPLEMENTATION ; ARABIDOPSIS-THALIANA ; GENE-EXPRESSION ; DELLA PROTEIN ; MICROARRAY ANALYSIS ; DWARF MUTANT ; GROWTH ; ELONGATION ; ENCODES ; CYTOCHROME-P450 |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000262695800010 |
| 出版者 | WILEY-BLACKWELL PUBLISHING, INC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2398009 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Chong, Kang |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, Key Lab Photosynth & Environm Mol Physiol, Res Ctr Mol & Dev Biol, Beijing 100093, Peoples R China 2.Carnegie Inst, Dept Plant Biol, Stanford, CA 94305 USA 3.Chung Ang Univ, Dept Life Sci, Seoul 156756, South Korea 4.Natl Plant Gene Res Ctr, Beijing 100093, Peoples R China 5.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Li,Wang, Zhen,Xu, Yunyuan,et al. Osgsr1 is involved in crosstalk between gibberellins and brassinosteroids in rice[J]. Plant journal,2009,57(3):498-510. |
| APA | Wang, Li.,Wang, Zhen.,Xu, Yunyuan.,Joo, Se-Hwan.,Kim, Seong-Ki.,...&Chong, Kang.(2009).Osgsr1 is involved in crosstalk between gibberellins and brassinosteroids in rice.Plant journal,57(3),498-510. |
| MLA | Wang, Li,et al."Osgsr1 is involved in crosstalk between gibberellins and brassinosteroids in rice".Plant journal 57.3(2009):498-510. |
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来源：中国科学院大学
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