Integration of spatial and temporal information during floral induction in Arabidopsis
Integration of spatial and temporal information during floral induction in Arabidopsis
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DOI：
10.1126/science.1114358
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发表时间：
2005-08-12
期刊：
影响因子：
56.9
通讯作者：
Weigel, D
中科院分区：
文献类型：
--
作者：
Wigge, PA;Kim, MC;Weigel, D
拟南芥的开花受多种环境和内源信号的调控。这些输入的一个重要整合者是FLOWERLOCUS T（FT）基因，它编码一种小的、可能是移动的蛋白。对花香的主要反应。诱导是叶中FT RNA表达的激活。因为花在一个遥远的地方形成，即茎尖，这些数据表明FT主要控制开花的时间。整合的时间和空间信息介导的部分bZIP转录因子FD，这是已经表达在茎尖开花前。诱导FT和FD蛋白的复合物反过来可以激活植物群[身份基因，如APETALA 1（AP 1）。
Flowering of Arabidopsis is regulated by several environmental and endogenous signals. An important integrator of these inputs is the FLOWERING LOCUS T (FT) gene, which encodes a small, possibly mobile protein. A primary response to floral. induction is the activation of FT RNA expression in leaves. Because flowers form at a distant site, the shoot apex, these data suggest that FT primarily controls the timing of flowering. Integration of temporal and spatial information is mediated in part by the bZIP transcription factor FD, which is already expressed at the shoot apex before floral. induction. A complex of FT and FD proteins in turn can activate flora[ identity genes such as APETALA1 (AP1).