A Diffusion Barrier (IMAGE)

Nagoya University

A Diffusion Barrier

Caption

Vascular plants have evolved a physical barrier that prevents passive apoplastic diffusion of ions and water across the endodermal cells that surround the vascular bundles. This hydrophobic barrier embedded within the walls of endodermal cells is called the Casparian strip.

Credit

Yoshikatsu Matsubayashi

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