The structure of the root apex of Pyrus betulaefolia Bunge consists of the stelar meristem,cortical cells and the root cap.
杜梨根端的结构,可分成中柱分生组织,皮层细胞和根冠。
Root cap
英语例句库
In roots, however, the concept is still applied, and in some angiosperm roots a fourth histogen zone is recognized, the calpytrogen, which gives rise to the root cap.
然而在根中，它还是适用的。在一些被子植物的根中，还发现了第四种组织原，即calpytrogen，与根冠发生有关。
英语百科
Root cap
The root cap is a section of tissue at the tip of a plant root. It is also called calyptra. Root caps contain statocytes which are involved in gravity perception in plants. If the cap is carefully removed the root will grow randomly. The root cap protects the growing tip in plants. It secretes mucilage to ease the movement of the root through soil, and may also be involved in communication with the soil microbiota.
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