Abstract This review focuses on the hormonal regulation of ovule development, especially on ovule initiation, patterning, and morphogenesis. Understanding of the genetic and molecular basis of ovule development is essential from both the scientific and economic perspective. The ovule represents an attractive system to study lateral organ development in plants, and, since ovules are the precursors of seeds, full comprehension of this process can be the key to the improvement of crops, especially those depending on high production of seeds and grains. Ovule initiation, patterning, and morphogenesis are governed by complex genetic and hormonal networks involving auxins, cytokinins, brassinosteroids, and gibberellins. These coordinate the determination of the ovule number, size, and shape through the regulation of the number of ovule primordia that arise from the placenta and/or ensuring their correct development into mature functional ovules. Here we summarize the current knowledge of how ovules are formed, paying special attention to the roles of these four plant hormones.

中文翻译：

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在通往胚珠的道路上：胚珠发育的激素调节

摘要 本综述侧重于胚珠发育的激素调节，尤其是胚珠的起始、模式形成和形态发生。从科学和经济的角度来看，了解胚珠发育的遗传和分子基础都是必不可少的。胚珠是研究植物侧器官发育的一个有吸引力的系统，并且由于胚珠是种子的前体，因此充分理解这一过程可能是改良作物的关键，尤其是那些依赖于高产种子和谷物的作物。胚珠起始、图案形成和形态发生受复杂的遗传和激素网络控制，包括生长素、细胞分裂素、油菜素类固醇和赤霉素。这些协调确定胚珠数量、大小、通过调节从胎盘产生的胚珠原基的数量和/或确保它们正确发育成成熟的功能胚珠。这里我们总结了目前关于胚珠是如何形成的知识，特别关注这四种植物激素的作用。