What Does Endodermis Mean?
Endodermis is the principal, innermost layer of
cells in a root. It consists of rings of endodermal cells that regulate water uptake. This layer is the boundary between the plant's stele and
Besides regulating water intake, the endodermis helps with hormone and ion movement into
and out of the root’s vascular system. It also protects the plant from absorbing toxins into the vascular structure.
Maximum Yield Explains Endodermis
The endodermis is a layer of cells
that regulate the movement of materials in and out of the root.
The root of a
plant is composed of a variety of layers, each having its own function to promote the overall health of the plant. Most of these layers work together
to absorb nutrients and water for the normal functioning of the plant.
However, the endodermis has a unique function to help protect against water saturation. The endodermis cells are typically thickened on four
sides radial and have a waxy substance that assists its functioning. Before
water can pass into the plant’s Casparian strip, it must go through the
layer does not allow gas bubbles to penetrate the xylem and therefore helps to prevent a clot or air bubbles.
The endodermis also aids nutrients
absorption by preventing absorbed nutrients from finding
their way back to the soil.
In some cases, the endodermis can be used to store starch. In such cases, the endodermis may be referred to as a starch sheath.