Illuminating flowers: CONSTANS induces LEAFY expression
Illuminating flowers: CONSTANS induces LEAFY expression
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DOI：
10.1002/bies.950190403
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发表时间：
1997-04-01
期刊：
影响因子：
4
通讯作者：
Blazquez, MA
中科院分区：
文献类型：
--
作者：
Blazquez, MA
高等植物如果要成功地完成生命周期，就必须经历一个主要的发育转换，即向开花过渡。在许多植物中，何时开始开花的关键决定主要由环境信号控制。花的诱导过程涉及两类基因活动的整合：一类是作为对环境的响应以及内源性时钟控制开花时间的基因，另一类是决定细胞花的身份的基因。这两类基因之间的第一个直接联系现在已被证实。胁迫表达一个开花时间基因CONSTANS，通过转录激活一个花-分生组织同源基因LEAFY来促进开花。
Higher plants must undergo a major developmental switch, the transition to flowering, if they are to successfully complete their life cycle. In many plants, the crucial decision of when to begin to produce flowers is primarily controlled by environmental signals. The process of floral induction involves the integration of the activities of two types of genes: those that control flowering time as a response to the environment as well as an endogenous clock, and those that determine the floral identity of the cells. The first direct link between these two classes of genes has now been demonstrated((1)). Forced expression of CONSTANS, a flowering-time gene, promotes flowering through the transcriptional activation of LEAFY, a flower-meristem-identity gene.