Divide and Conquer: The Initiation and Proliferation of Meristems
Divide and Conquer: The Initiation and Proliferation of Meristems
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DOI：
10.1080/07352689.2021.1915228
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发表时间：
2021-03
影响因子：
6.9
通讯作者：
Michael F Schwartz;R. Peters;Aitch Hunt;Abdul-Khaliq Abdul-Matin-Abdul-Khaliq-Abdul-Matin-1438680318;Lisa Van den Broeck;Rosangela Sozzani
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文献类型：
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作者：
Michael F Schwartz;R. Peters;Aitch Hunt;Abdul-Khaliq Abdul-Matin-Abdul-Khaliq-Abdul-Matin-1438680318;Lisa Van den Broeck;Rosangela Sozzani
与动物在发育早期就完成器官形成不同，植物在其整个生命周期中不断产生器官和结构。植物通过分生组织的形成和维持来实现器官的连续生长。植物含有两个顶端分生组织，一个在芽和一个根，分别产生芽的侧部器官和根的细胞簇。植物内的额外分生组织产生分支，而其他分生组织产生脉管系统内的细胞类型。在整个发育过程中，植物必须平衡生产器官和维持其分生组织，这需要严格控制的调节。这篇综述着重于各种植物分生组织，这些分生组织内的细胞如何维持其身份，特别是调节干细胞维持的分子参与者。此外，我们总结了与分生组织共享分子特征的细胞类型，但不遵循相同的规则进行维护，包括周鞘和轴创始人细胞。这些细胞群体共同参与了植物的整个器官发生。
Abstract In contrast to animals, which complete organogenesis early in their development, plants continuously produce organs, and structures throughout their entire lifecycle. Plants achieve the continuous growth of organs through the initiation and maintenance of meristems that populate the plant body. Plants contain two apical meristems, one at the shoot and one root, to produce the lateral organs of the shoot and the cell files of the root, respectively. Additional meristems within the plant produce branches while others produce the cell types within the vasculature system. Throughout development, plants must balance producing organs and maintaining their meristems, which requires tightly controlled regulations. This review focuses on the various plant meristems, how cells within these meristems maintain their identity, and particularly the molecular players that regulate stem cell maintenance. In addition, we summarize cell types which share molecular features with meristems, but do not follow the same rules regarding maintenance, including pericycle and rachis founder cells. Together, these populations of cells contribute to the entire organogenesis of plants.