The mRNA of the Arabidopsis gene FT moves from leaf to shoot apex and induces flowering (Retracted Article. See vol 316, pg 367, 2007)
The mRNA of the Arabidopsis gene FT moves from leaf to shoot apex and induces flowering (Retracted Article. See vol 316, pg 367, 2007)
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DOI：
10.1126/science.1117768
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发表时间：
2005-09-09
期刊：
影响因子：
56.9
通讯作者：
Nilsson, O
中科院分区：
文献类型：
--
作者：
Huang, T;Böhlenius, H;Nilsson, O
日长控制着许多植物的开花时间。叶子中感知到日长信号，但如何将这种信号传递到发生花起始的芽尖尚不清楚。在拟南芥中，日长响应取决于 FLOWERING LOCUS T (FT) 基因的诱导。我们在此表明，单片拟南芥叶中 FT 的局部诱导足以引发开花。 FT 信使 RNA 被运输至茎尖，下游基因在此被激活。这些数据表明 FT mRNA 是难以捉摸的“成花素”信号的重要组成部分，该信号从叶子移动到茎尖。
Day length controls flowering time in many plants. The day-length signal is perceived in the leaf, but how this signal is transduced to the shoot apex, where floral initiation occurs, is not known. In Arabidopsis, the day-length response depends on the induction of the FLOWERING LOCUS T (FT) gene. We show here that local induction of FT in a single Arabidopsis leaf is sufficient to trigger flowering. The FT messenger RNA is transported to the shoot apex, where downstream genes are activated. These data suggest that the FT mRNA is an important component of the elusive "florigen" signal that moves from leaf to shoot apex.