Casparian band

Casparian band
Region of plant-cell wall specialized to act as a seal to prevent back-leakage of secreted material (analogous to tight junctionbetween epithelial cells). Found particularly where root parenchymal cells secrete solutes into xylem vessels.

Dictionary of molecular biology. 2004.

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  • casparian strip — noun Usage: usually capitalized C Etymology: Robert Caspary died 1887 German botanist + English an : a secondary thickening in many endodermal cells in the form of a continuous band or strip on the radial and transverse walls compare endodermis …   Useful english dictionary

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  • endodermis — Single layer of cells surrounding the central stele (vascular tissue) in roots. The radial and transverse walls contain the hydrophobic Casparian band, that prevents water flow in or out of the stele through the apoplast. Also present in some… …   Dictionary of molecular biology

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