Cytokinin affects circadian-clock oscillation in a phytochrome b- and arabidopsis response regulator 4-dependent manner
文献类型：期刊论文
| 作者 | Zheng, BL; Deng, Y; Mu, JY; Ji, ZD; Xiang, TT; Niu, QW; Chua, NH; Zuo, JR |
| 刊名 | Physiologia plantarum
 |
| 出版日期 | 2006-06-01 |
| 卷号 | 127期号:2页码:277-292 |
| ISSN号 | 0031-9317 |
| DOI | 10.1111/j.1399-3054.2006.00660.x |
| 通讯作者 | Zuo, jr() |
| 英文摘要 | In higher plants, many developmental processes, such as photomorphogenesis and flowering, are coregulated by light and the phytohormone cytokinin. interactions between light and cytokinin pathways are presumably mediated by common signaling intermediates. however, the molecular mechanism of these interactions remains unclear. here, we report that cytokinin specifically induces the expression of the arabidopsis circadian oscillator genes late elongated hypocotyl (lhy) and circadian clock-associated 1 (cca1) but represses the expression of timing of cab expression 1 in a light-dependent manner. consistent with these observations, cytokinin causes a shifted phase of the circadian clock. mutant studies showed that the altered clock oscillation modulated by cytokinin is dependent on phytochrome b (phyb) and arabidopsisresponse regulator 4 (arr4). whereas overexpression of lhy or cca1 renders plants slightly more sensitive to cytokinin, phyb and a lhy/cca1 double mutant are less sensitive to the hormone. these results suggest that cytokinin affects the circadian clock oscillation in a phyb- and arr4-dependent manner and that cytokinin signaling is also regulated by light-signaling components, including phyb, lhy and cca1. therefore, phyb, arr4 and the circadian oscillator may function as signaling intermediates to integrate light and cytokinin pathways. |
| WOS关键词 | ARABIDOPSIS RESPONSE REGULATORS ; SIGNAL-TRANSDUCTION ; HISTIDINE KINASE ; RED-LIGHT ; HYPOCOTYL ELONGATION ; GENE-EXPRESSION ; PHOTOPERIODIC CONTROL ; CELL ELONGATION ; TOBACCO TISSUE ; FLOWERING TIME |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000237695100011 |
| 出版者 | BLACKWELL PUBLISHING |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2378925 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zuo, JR |
| 作者单位 | 1.Chinese Acad Sci, Inst Genet & Dev Biol, State Key Lab Plant Genom, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Rockefeller Univ, Plant Mol Biol Lab, New York, NY 10021 USA |
| 推荐引用方式 GB/T 7714 | Zheng, BL,Deng, Y,Mu, JY,et al. Cytokinin affects circadian-clock oscillation in a phytochrome b- and arabidopsis response regulator 4-dependent manner[J]. Physiologia plantarum,2006,127(2):277-292. |
| APA | Zheng, BL.,Deng, Y.,Mu, JY.,Ji, ZD.,Xiang, TT.,...&Zuo, JR.(2006).Cytokinin affects circadian-clock oscillation in a phytochrome b- and arabidopsis response regulator 4-dependent manner.Physiologia plantarum,127(2),277-292. |
| MLA | Zheng, BL,et al."Cytokinin affects circadian-clock oscillation in a phytochrome b- and arabidopsis response regulator 4-dependent manner".Physiologia plantarum 127.2(2006):277-292. |
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来源：中国科学院大学
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