Kuznetsova Ksenia, Efremova Elena, Dodueva Irina, Lebedeva Maria, Lutova Ludmila
Department of Genetics and Biotechnology, Saint Petersburg State University, Universitetskaya Emb. 7/9, 199034 Saint Petersburg, Russia.
Plants (Basel). 2023 Oct 23;12(20):3661. doi: 10.3390/plants12203661.
A feature of higher plants is the modular principle of body organisation. One of these conservative morphological modules that regulate plant growth, histogenesis and organogenesis is meristems-structures that contain pools of stem cells and are generally organised according to a common principle. Basic content: The development of meristems is under the regulation of molecular modules that contain conservative interacting components and modulate the expression of target genes depending on the developmental context. In this review, we focus on two molecular modules that act in different types of meristems. The WOX-CLAVATA module, which includes the peptide ligand, its receptor and the target transcription factor, is responsible for the formation and control of the activity of all meristem types studied, but it has its own peculiarities in different meristems. Another regulatory module is the so-called florigen-activated complex, which is responsible for the phase transition in the shoot vegetative meristem (e.g., from the vegetative shoot apical meristem to the inflorescence meristem).
The review considers the composition and functions of these two functional modules in different developmental programmes, as well as their appearance, evolution and use in plant breeding.
高等植物的一个特征是其身体组织的模块化原则。这些调控植物生长、组织发生和器官发生的保守形态模块之一是分生组织——包含干细胞库且通常按照共同原则组织起来的结构。
分生组织的发育受分子模块的调控，这些分子模块包含保守的相互作用成分，并根据发育环境调节靶基因的表达。在本综述中，我们聚焦于在不同类型分生组织中起作用的两个分子模块。WOX-CLAVATA模块，包括肽配体、其受体和靶转录因子，负责所研究的所有分生组织类型的形成和活性控制，但在不同的分生组织中有其自身特点。另一个调控模块是所谓的成花素激活复合体，它负责茎营养分生组织中的阶段转变（例如，从营养茎尖分生组织到花序分生组织）。
本综述探讨了这两个功能模块在不同发育程序中的组成和功能，以及它们在植物育种中的出现、进化和应用。
