Department of Biology, University of Pennsylvania, Philadelphia, PA, USA.
Genomics and Computational Biology Graduate Group, University of Pennsylvania, Philadelphia, PA, USA.
J Exp Bot. 2021 Mar 29;72(7):2301-2311. doi: 10.1093/jxb/eraa598.
This year marks the 100th anniversary of the experiments by Garner and Allard that showed that plants measure the duration of the night and day (the photoperiod) to time flowering. This discovery led to the identification of Flowering Locus T (FT) in Arabidopsis and Heading Date 3a (Hd3a) in rice as a mobile signal that promotes flowering in tissues distal to the site of cue perception. FT/Hd3a belong to the family of phosphatidylethanolamine-binding proteins (PEBPs). Collectively, these proteins control plant developmental transitions and plant architecture. Several excellent recent reviews have focused on the roles of PEBPs in diverse plant species; here we will primarily highlight recent advances that enhance our understanding of the mechanism of action of PEBPs and discuss critical open questions.
今年是加纳尔（Garner）和阿拉德（Allard）进行实验的 100 周年，他们的实验表明植物可以测量白天和黑夜的持续时间（光周期），从而控制开花时间。这一发现促使人们在拟南芥中鉴定出开花时间基因（FT）和在水稻中鉴定出Heading Date 3a（Hd3a），这两个基因作为一个移动信号，促进了远离 cue 感知部位的组织开花。FT/Hd3a 属于磷脂酰乙醇胺结合蛋白（PEBP）家族。这些蛋白质共同控制植物发育的转变和植物结构。最近有几篇优秀的综述文章集中探讨了 PEBPs 在不同植物物种中的作用；在这里，我们将主要强调最近的进展，以加深我们对 PEBPs 作用机制的理解，并讨论关键的开放性问题。
