endodermis
noun [ S ] biology specialized uk/ˌen.dəʊˈdɜː.mɪs/ us/ˌen.doʊˈdɝː.mɪs/
（植物根部的）内皮层
a layer of cells in a plant's root that is the inside part of the cortex (= the part under the exodermis and outer layer)
The only way for the water to cross the endodermis is through the cytoplasm of these cells. 水穿过内皮层的唯一途径是通过这些细胞的细胞质。
- More examples
- She had been describing a plant's epidermis and endodermis - osmotic pumps moving water across the root.
- The cells in the endodermis have a thick, waterproof, waxy band of suberin in their cell walls.
- In the root, water which has crossed the cortex, endodermis and pericycle moves into the xylem vessels through the pits in their walls.
- The researchers discovered that a protein molecule moves from the vascular cylinder to the endodermis, an inner skin within the root.