Embryogenesis - the humble beginnings of plant life
Embryogenesis - the humble beginnings of plant life
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DOI：
10.1111/j.1365-313x.2010.04143.x
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发表时间：
2010-03-01
期刊：
影响因子：
7.2
通讯作者：
Juergens, Gerd
中科院分区：
文献类型：
--
作者：
De Smet, Ive;Lau, Steffen;Juergens, Gerd
每种植物都是从卵子和精子细胞融合而成的受精卵开始生命的。受精卵形成多细胞胚胎，表现出基本的植物体组织，并被营养丰富的胚乳和母体组织所包围。在10年前拟南芥基因组测序完成之前，就已经研究了身体组织是如何产生的，但自那以后，人们发现或更详细地分析了胚胎发育的几种调控机制。尽管这一进展并不严格依赖于基因组序列本身的可用性，但相当大程度上促进了几项进展。在这篇综述中，我们主要讨论早期胚胎发育，重点强调一般机制和关键调节因子，包括植物激素，它们参与了胚胎的模式形成，并主要在后基因组十年进行了分析。我们还指出了一些尚未解决的问题，对拟南芥胚胎研究的未来进行了简要的展望，并讨论了如何将拟南芥获得的知识转化为作物物种。
P>Each plant starts life from the zygote formed by the fusion of an egg and a sperm cell. The zygote gives rise to a multicellular embryo that displays a basic plant body organization and is surrounded by nutritive endosperm and maternal tissue. How the body organization is generated had already been studied before the genome sequence of Arabidopsis thaliana was completed 10 years ago, but several regulatory mechanisms of embryo development have since been discovered or analysed in more detail. Although this progress did not strictly depend on the availability of the genome sequence itself, several advances were considerably facilitated. In this review, we mainly address early embryo development, highlighting general mechanisms and crucial regulators, including phytohormones, that are involved in patterning the embryo and were mainly analysed in the post-genome decade. We also highlight some unsolved problems, provide a brief outlook on the future of Arabidopsis embryo research, and discuss how the knowledge gained from Arabidopsis could be translated to crop species.