Casparian strip
Root's waxy checkpoint
A Casparian strip is a band of waxy, waterproof material in the cell walls of plant root tissue.
It forces water and dissolved minerals to pass through cell membranes rather than flowing freely between cells, allowing the plant to regulate which substances enter its vascular system.
Named after botanist Robert Caspary.
structure
Rigid cellular outer layer
- ligninStructural plant polymer
- hydrophobicRepels aqueous substances
- waterproofingMaking impervious to moisture
- bandGroup playing music together
deposition · impregnation · middle lamella · membrane · waxy · impermeable · annular
anatomy
Inscribed memorial pillar
development
Hardening into woody tissue
- maturationProcess of becoming complete
- specificationDetailed technical requirement
- gene expressionDNA to functional product
function
Control of liquid resources
- exclusionBeing barred from participation
- filtrationSeparating solids from liquids
- compartmentalizationDivision into distinct sections
cell wall
Rigid cellular outer layer
- ligninStructural plant polymer
- hydrophobicRepels aqueous substances
- waterproofingMaking impervious to moisture
band · deposition · impregnation · middle lamella · membrane · waxy · impermeable · annular
stele
Inscribed memorial pillar
lignification
Hardening into woody tissue
- maturationProcess of becoming complete
- specificationDetailed technical requirement
- gene expressionDNA to functional product
water regulation
Control of liquid resources
- exclusionBeing barred from participation
- filtrationSeparating solids from liquids
- compartmentalizationDivision into distinct sections