Role of SVP in the control of flowering time by ambient temperature in Arabidopsis
Role of SVP in the control of flowering time by ambient temperature in Arabidopsis
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DOI：
10.1101/gad.1518407
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发表时间：
2007-02-15
影响因子：
10.5
通讯作者：
Ahn, Ji Hoon
中科院分区：
文献类型：
--
作者：
Lee, Jeong Hwan;Yoo, Seong Jeon;Ahn, Ji Hoon
植物必须感知环境温度的变化并迅速做出反应，才能成功繁殖。在这里，我们证明了拟南芥短营养期（SVP）在植物对环境温度变化的反应中起着重要的作用。SVP功能的丧失引起对环境温度变化的不敏感性。SVP介导FCA和FVE在温度感觉通路中的温度依赖性功能。SVP通过与FT序列中的CArG基序直接结合来负调节花整合因子FLOWARGLOCUS T（FT）的表达，从而控制开花时间。我们认为这是在温度波动条件下调节开花时间的分子机制之一。
Plants must perceive and rapidly respond to changes in ambient temperature for their successful reproduction. Here we demonstrate that Arabidopsis SHORT VEGETATIVE PHASE (SVP) plays an important role in the response of plants to ambient temperature changes. The loss of SVP function elicited insensitivity to ambient temperature changes. SVP mediates the temperature-dependent functions of FCA and FVE within the thermo-sensory pathway. SVP controls flowering time by negatively regulating the expression of a floral integrator, FLOWERING LOCUS T ( FT), via direct binding to the CArG motifs in the FT sequence. We propose that this is one of the molecular mechanisms that modulate flowering time under fluctuating temperature conditions.