Institute of Plant Biology & Zürich-Basel Plant Science Center, University of Zürich, Zollikerstrasse 107, Zürich, Switzerland.
J Exp Bot. 2011 Mar;62(5):1581-91. doi: 10.1093/jxb/erq445. Epub 2011 Jan 20.
In plants, organ formation and cell elongation require the constant adjustment of the dynamic and adaptable cell wall in response to environmental cues as well as internal regulators, such as light, mechanical stresses, pathogen attacks, phytohormones, and other signaling molecules. The molecular mechanisms that perceive these cues and translate them into cellular responses to maintain integrity and remodelling of the carbohydrate-rich cell wall for the coordination of cell growth are still poorly understood. In the last 3 years, the function of six membrane-localized receptor-like kinases (RLKs) belonging to the CrRLK1L family has been linked to the control of cell elongation in vegetative and reproductive development. Moreover, the presence of putative carbohydrate-binding domains in the extracellular domains of these CrRLK1Ls makes this receptor family an excellent candidate for coordinating cell growth, cell-cell communication, and constant cell wall remodelling during the plant life cycle.
在植物中，器官形成和细胞伸长需要不断调整动态适应的细胞壁，以响应环境线索以及内部调节剂，如光、机械应力、病原体攻击、植物激素和其他信号分子。感知这些线索并将其转化为细胞响应以维持富含碳水化合物细胞壁的完整性和重塑，从而协调细胞生长的分子机制仍知之甚少。在过去的 3 年中，属于 CrRLK1L 家族的六个膜定位受体样激酶 (RLK) 的功能已与营养和生殖发育过程中细胞伸长的控制相关联。此外，这些 CrRLK1Ls 的细胞外结构域中存在假定的碳水化合物结合结构域，这使得该受体家族成为协调细胞生长、细胞间通讯和植物生命周期中细胞壁不断重塑的理想候选者。
