贵刊 2 0 0 0年 11期“根的结构一节内容安排的几点改进”一文认为 :根冠属于保护组织 ,这是有科学错误的。实际上 ,根冠是根所具有的一种特殊组织。根冠是位于根尖最前端的帽状结构 ,以保护其内分生区 ,适应土中生长。根冠由三种细胞组成 :①根冠分生细胞 ,又称根冠源 ,与分生 The article “Some Improvements in the Content Arrangement of the Structure of the Root Section” of the 11th issue of your edition in 2010 was considered: The root canopy belongs to the protection organization, which is a scientific mistake. In fact, the root canopy is a special organization that the root has. The root cap is a cap-shaped structure located at the forefront of the root tip to protect its inner division zone and accommodate the growth in the soil. The root canopy is composed of three types of cells: a crown-derived cell, also known as the root-crown source, and the meristem