A novel nuclear-localized ccch-type zinc finger protein, osdos, is involved in delaying leaf senescence in rice
文献类型：期刊论文
| 作者 | Kong, Zhaosheng; Li, Meina; Yang, Wenqiang; Xu, Wenying; Xue, Yongbiao |
| 刊名 | Plant physiology
 |
| 出版日期 | 2006-08-01 |
| 卷号 | 141期号:4页码:1376-1388 |
| ISSN号 | 0032-0889 |
| DOI | 10.1104/pp.106.082941 |
| 通讯作者 | Xue, yongbiao(ybxue@genetics.ac.cn) |
| 英文摘要 | Leaf senescence is a developmentally programmed degeneration process, which is fine tuned by a complex regulatory network for plant fitness. however, molecular regulation of leaf senescence is poorly understood, especially in rice ( oryza sativa), an important staple crop for more than half of the world population. here, we report a novel nuclear-localized ccch-type zinc finger protein, oryza sativa delay of the onset of senescence (osdos), involved in delaying leaf senescence in rice. the expression of osdos was down-regulated during natural leaf senescence, panicle development, and pollination, although its transcripts were accumulated in various organs. rnai knockdown of osdos caused an accelerated age-dependent leaf senescence, whereas its overexpression produced a marked delay of leaf senescence, suggesting that it acts as a negative regulator for leaf senescence. a genome-wide expression analysis further confirmed its negative regulation for leaf senescence and revealed that, in particular, the jasmonate (ja) pathway was found to be hyperactive in the osdos rnai transgenic lines but impaired in the osdos overexpressing transgenic lines, indicating that this pathway is likely involved in the osdos-mediated delaying of leaf senescence. furthermore, methyl ja treatments of both seeds and detached leaves from the rnai and the overexpressing transgenic lines showed hyper-and hyporesponses, respectively, consistent with the negative regulation of the ja pathway by osdos. together, these results indicate that osdos is a novel nuclear protein that delays leaf senescence likely, at least in part, by integrating developmental cues to the ja pathway. |
| WOS关键词 | ORYZA-SATIVA L. ; F-BOX PROTEIN ; GENE-EXPRESSION ; MESSENGER-RNA ; ARABIDOPSIS-THALIANA ; TRANSCRIPTION FACTOR ; SELF-INCOMPATIBILITY ; JASMONIC ACID ; STAY-GREEN ; C-ELEGANS |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000239636800022 |
| 出版者 | AMER SOC PLANT BIOLOGISTS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2379541 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Xue, Yongbiao |
| 作者单位 | 1.Chinese Acad Sci, Inst Genet & Dev Biol, Lab Mol & Dev Biol, Beijing 100080, Peoples R China 2.Natl Ctr Plant Gene Res, Beijing 100080, Peoples R China 3.Grad Univ, Chinese Acad Sci, Beijing 100049, Peoples R China 4.Tianjin Normal Univ, Coll Life Sci, Tianjin 300074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kong, Zhaosheng,Li, Meina,Yang, Wenqiang,et al. A novel nuclear-localized ccch-type zinc finger protein, osdos, is involved in delaying leaf senescence in rice[J]. Plant physiology,2006,141(4):1376-1388. |
| APA | Kong, Zhaosheng,Li, Meina,Yang, Wenqiang,Xu, Wenying,&Xue, Yongbiao.(2006).A novel nuclear-localized ccch-type zinc finger protein, osdos, is involved in delaying leaf senescence in rice.Plant physiology,141(4),1376-1388. |
| MLA | Kong, Zhaosheng,et al."A novel nuclear-localized ccch-type zinc finger protein, osdos, is involved in delaying leaf senescence in rice".Plant physiology 141.4(2006):1376-1388. |
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来源：中国科学院大学
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