Describe the structure of stele in maize root

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The stele is bounded by an endodermis and pericycle. Endodermal cells are barrel shaped and have casparian thickenings on their radical and tangential walls. Pericycle is represented by a single layer of thin walled parenchyma cells.

The vascular bundles are many in number (polyarch) and radial with exarch xylem. In the centre of the stele is a parenchymatous pith.

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