A transcription factor coordinating internode elongation and photoperiodic signals in rice
A transcription factor coordinating internode elongation and photoperiodic signals in rice
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DOI：
10.1038/s41477-019-0401-4
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发表时间：
2019-04-01
期刊：
影响因子：
18
通讯作者：
Fornara, Fabio
中科院分区：
文献类型：
--
作者：
Gomez-Ariza, Jorge;Brambilla, Vittoria;Fornara, Fabio
在一些植物物种中，花序的形成伴随着茎的伸长。当水稻感知到白天缩短时，这两个过程都会加速。在这里，我们发现编码水稻锌指转录因子的节间提前伸长 1 (PINE1) 会降低茎对赤霉素 (GA) 的敏感性。成花素降低 PINE1 表达，增加茎对 GA 的反应并促进开花。这些数据表明存在协调开花和 GA 依赖性生长的调控网络。
In several plant species, inflorescence formation is accompanied by stem elongation. Both processes are accelerated in rice upon perception of shortening days. Here, we show that PREMATURE INTERNODE ELONGATION 1 (PINE1), encoding a rice zinc-finger transcription factor, reduces the sensitivity of the stem to gibberellin (GA). The florigens reduce PINE1 expression to increase stem responsiveness to GA and promote flowering. These data indicate the existence of a regulatory network coordinating flowering and GA-dependent growth.