Lateral transport in roots.
- Root hairs absorb water and minerals, which move along the walls comprising the
- Minerals and water that cross the plasma membranes of root hairs enter the symplast.
- Along the apoplast some water and minerals are transported into the cytosols
of cells and then move via the symplast.
- The Casparian strip, a belt of waxy material, allows only minerals in the
symplast to pass into the vascular cylinder
through the plasma membrane of endodermal cells.
- Cells in the vascular cylinder transport water and minerals throughout the plant.