细胞分裂素
拟南芥
细胞分裂
细胞周期
细胞生物学
生物
细胞周期蛋白
突变体
拟南芥
细胞周期蛋白
细胞
生长素
生物化学
基因
作者
Catherine Riou,Rachael P. Huntley,Annie Jacqmard,J. A. H. Murray
出处
期刊:Science
[American Association for the Advancement of Science]
日期:1999-03-05
卷期号:283 (5407): 1541-1544
被引量:771
标识
DOI:10.1126/science.283.5407.1541
摘要
Cytokinins are plant hormones that regulate plant cell division. The D-type cyclin CycD3 was found to be elevated in a mutant of Arabidopsis with a high level of cytokinin and to be rapidly induced by cytokinin application in both cell cultures and whole plants. Constitutive expression of CycD3 in transgenic plants allowed induction and maintenance of cell division in the absence of exogenous cytokinin. Results suggest that cytokinin activates Arabidopsis cell division through induction of CycD3 at the G 1 -S cell cycle phase transition.
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