Laboratoire Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRA, INRIA, Lyon 69007, France; Laboratoire Physiologie Cellulaire et Végétale, Université Grenoble Alpes, CNRS, CEA, INRAE, IRIG-DBSCI-LPCV, 17 avenue des Martyrs, F-38054, Grenoble, France.
Laboratoire Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRA, INRIA, Lyon 69007, France.
Trends Plant Sci. 2024 Apr;29(4):413-427. doi: 10.1016/j.tplants.2023.11.003. Epub 2023 Nov 30.
The concept of the meristem was introduced in 1858 to characterize multicellular, formative, and proliferative tissues that give rise to the entire plant body, based on observations of vascular plants. Although its original definition did not encompass bryophytes, this concept has been used and continuously refined over the past 165 years to describe the diverse apices of all land plants. Here, we re-examine this matter in light of recent evo-devo research and show that, despite displaying high anatomical diversity, land plant meristems are unified by shared genetic control. We also propose a modular view of meristem function and highlight multiple evolutionary mechanisms that are likely to have contributed to the assembly and diversification of the varied meristems during the course of plant evolution.
1858 年，人们提出了分生组织的概念，其特征是多细胞、形成和增殖组织，这些组织产生整个植物体，这一概念基于对维管植物的观察。尽管其最初的定义不包括苔藓植物，但在过去的 165 年中，这个概念已经被用于描述所有陆地植物的不同顶端分生组织，并不断得到完善。在这里，我们根据最近的演化发育研究重新审视了这个问题，并表明，尽管陆地植物的分生组织具有高度的解剖多样性，但它们的遗传控制是统一的。我们还提出了一个分生组织功能的模块化观点，并强调了可能有助于植物进化过程中多样化的分生组织组装和多样化的多种进化机制。
