Cell cycle regulation is of pivotal importance for plant growth and development. Although plant cell division shares basic mechanisms with all eukaryotes, plants have evolved novel molecules orchestrating the cell cycle. Some regulatory proteins, such as cyclins and inhibitors of cyclin-dependent kinases, are particularly numerous in plants, possibly reflecting the remarkable ability of plants to modulate their postembryonic development. Many plant cells also can continue DNA replication in the absence of mitosis, a process known as endoreduplication, causing polyploidy. Here, we review the molecular mechanisms that regulate cell division and endoreduplication and we discuss our understanding, albeit very limited, on how the cell cycle is integrated with plant development.

中文翻译：

---

植物发育中的细胞周期调控。

细胞周期调节对于植物生长和发育至关重要。尽管植物细胞分裂与所有真核生物都有基本的机制，但植物已经进化出协调细胞周期的新型分子。一些调节蛋白，例如细胞周期蛋白和细胞周期蛋白依赖性激酶的抑制剂在植物中特别多，这可能反映了植物调节其胚后发育的显着能力。在没有有丝分裂的情况下，许多植物细胞也可以继续DNA复制，这一过程称为内复制，导致多倍性。在这里，我们回顾了调节细胞分裂和核内复制的分子机制，并讨论了关于细胞周期如何与植物发育整合的理解，尽管非常有限。