Cell-to-cell and cell-to-environment communications are critical to the growth and development of plants. Cell surface-localized receptor-like kinases (RLKs) are mainly involved in sensing various extracellular signals to initiate their corresponding cellular responses. As important vegetative organs for higher plants to adapt to a terrestrial living situation, roots play a critical role for the survival of plants. It has been demonstrated that RLKs control many biological processes during root growth and development. In this review, we summarize several key regulatory processes during Arabidopsis root development in which RLKs play critical roles. We also put forward a number of relevant questions that are required to be explored in future studies.

细胞间和细胞间环境的通讯对于植物的生长和发育至关重要。细胞表面定位的受体样激酶（RLKs）主要参与感测各种细胞外信号以启动其相应的细胞反应。作为高等植物适应陆地生存状况的重要营养器官，根对植物的生存起着至关重要的作用。已经证明，RLK在根生长和发育过程中控制着许多生物过程。在这篇综述中，我们总结了拟南芥根发育过程中的几个关键调控过程，其中RLKs起着关键作用。我们还提出了一些相关的问题，需要在以后的研究中加以探讨。