School of Biosciences, University of Birmingham, Birmingham, B15 2TT, UK.
Trends Plant Sci. 2016 Jun;21(6):498-505. doi: 10.1016/j.tplants.2016.02.001. Epub 2016 Feb 28.
The seed to seedling transition in plants is initiated following the termination of seed dormancy. Here, I present a simplified developmental framework describing the events underlying this transition. I discuss putative mechanisms of signal integration and their relation to a global developmental fate switch in seeds within this framework. I delineate the events that occur before and after the flipping of this switch, marking an important distinction between these different developmental states. To end, I propose that the final fate switch resides within the embryo, and is informed by the endosperm in arabidopsis (Arabidopsis thaliana). This framework can serve as a template to focus future research in seed science.
植物从种子到幼苗的转变是在种子休眠结束后开始的。在这里，我提出了一个简化的发育框架，描述了这一转变的基础事件。我在这个框架内讨论了信号整合的假设机制及其与种子中全局发育命运转变的关系。我描述了在这个开关翻转前后发生的事件，这标志着这两个不同发育状态之间的一个重要区别。最后，我提出最终的命运开关位于胚胎内，并受拟南芥（Arabidopsis thaliana）胚乳的影响。这个框架可以作为一个模板，为种子科学的未来研究提供重点。
