de Vries Sacco C, Weijers Dolf
Laboratory of Biochemistry, Wageningen University, Stippeneng 4, 6708WE Wageningen, The Netherlands.
Laboratory of Biochemistry, Wageningen University, Stippeneng 4, 6708WE Wageningen, The Netherlands.
Curr Biol. 2017 Sep 11;27(17):R870-R873. doi: 10.1016/j.cub.2017.05.026.
Land plants are called 'embryophytes' and thus, their collective name is defined by their ability to form embryos. Indeed, embryogenesis is a widespread phenomenon in plants, and much of our diet is composed of embryos (just think of grains, beans or nuts; Figure 1). However, in addition to embryos as a source of nutrition, they are also a fascinating study object. Some of the most fundamental decisions on fate and identity, as well as patterning and morphogenesis, are taken during the first days of plant life. Yet, embryos are diverse in structure and function, and embryogenesis in plants is by no means restricted to the zygote - the product of fertilization. In this Primer, we discuss the adventures of the young plant. We will consider what it means to be a plant embryo and how to become one. We will next highlight how the study of early embryogenesis can reveal principles underlying oriented cell division and developmental pattern formation in plants.
陆生植物被称为“胚植物”，因此，它们的统称是由其形成胚胎的能力来定义的。事实上，胚胎发生在植物中是一种普遍现象，我们的许多食物都由胚胎组成（想想谷物、豆类或坚果；图1）。然而，除了作为营养来源的胚胎外，它们也是一个引人入胜的研究对象。关于命运和身份以及模式形成和形态发生的一些最基本的决定是在植物生命的最初几天做出的。然而，胚胎在结构和功能上是多样的，植物中的胚胎发生绝不限于受精卵——受精的产物。在本入门文章中，我们将讨论幼苗的历程。我们将思考成为植物胚胎意味着什么以及如何成为一个植物胚胎。接下来，我们将强调早期胚胎发生的研究如何揭示植物中定向细胞分裂和发育模式形成的潜在原理。
