A group of cells at the tip of the root, rubbed off by the motion of the root tip through the soil and constantly renewed from within.
1
It also revealed a role for the lateral root cap and the epidermis in controlling root growth, a faster response.
2
Despite this well-established role in the control of developmental processes in roots , the root cap's function in nutrition remains obscure.
3
The root cap has a fundamental role in sensing environmental cues as well as regulating root growth via altered meristem activity.