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Regulation and Identity of Florigen: FLOWERING LOCUS T Moves Center Stage
Annual Review of Plant Biology ( IF 23.9 ) Pub Date : 2008-06-01 , DOI: 10.1146/annurev.arplant.59.032607.092755
Franziska Turck 1 , Fabio Fornara , George Coupland
Affiliation  

The transition from vegetative to reproductive growth is controlled by day length in many plant species. Day length is perceived in leaves and induces a systemic signal, called florigen, that moves through the phloem to the shoot apex. At the shoot apical meristem (SAM), florigen causes changes in gene expression that reprogram the SAM to form flowers instead of leaves. Analysis of flowering of Arabidopsis thaliana placed the CONSTANS/FLOWERING LOCUS T (CO/FT) module at the core of a pathway that promotes flowering in response to changes in day length. We describe progress in defining the molecular mechanisms that activate this module in response to changing day length and the increasing evidence that FT protein is a major component of florigen. Finally, we discuss conservation of FT function in other species and how variation in its regulation could generate different flowering behaviors.

中文翻译:

Florigen 的调节和识别:FLOWERING LOCUS T 移动中心舞台

在许多植物物种中,从营养生长到生殖生长的过渡是由日长控制的。在叶子中感知日长并诱导一种称为成花素的系统信号,该信号通过韧皮部移动到茎尖。在茎尖分生组织 (SAM),florigen 会导致基因表达发生变化,从而重新编程 SAM 以形成花而不是叶子。拟南芥开花分析将 CONSTANS/FLOWERING LOCUS T (CO/FT) 模块置于促进开花以响应日长变化的途径的核心。我们描述了定义激活该模块以响应不断变化的日长的分子机制方面的进展,以及越来越多的证据表明 FT 蛋白是 florigen 的主要成分。最后,
更新日期:2008-06-01
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