noun
- the innermost layer of cells in the cortex of a plant root or stem that regulates the passage of materials between the cortex and the vascular tissue
Usage: botanical
Examples
- The endodermis acts as a selective barrier in plant roots.
- Water and nutrients must pass through the endodermis to reach the plant’s vascular system.
- The Casparian strip is a key feature of endodermis cells.
- Botanists study the endodermis to understand how plants control water uptake.
- The endodermis helps prevent harmful substances from entering the plant’s core tissues.
- In cross-sections of roots, the endodermis appears as a distinct cellular layer.