Assertion: meristem's cell | /r/HasAspect | casparian strips
Facets:
value: within their walls
type: LOCATION
Source sentences:
text: The endodermis (the innermost layer of the cortex adjacent to the pericycle) is composed of closely packed cells that have within their walls Casparian strips, water-impermeable deposits of suberin that regulate water and mineral uptake by the roots.