出典:Wikipedia
出典:『Wikipedia』 (2011/03/08 23:07 UTC 版)
Cell cortex are specialized layer of cytoplasm on the inner face of the plasma membrane. The cell cortex functions as a mechanical support of the plasma membrane. In animal cells it is an actin-rich layer responsible for movements of the cell surface. In plant cells, the cell cortex is reinforced by cortical microtubules underlying the plasma membrane. The direction of these cortical microtubules determines which way the cell elongates when it grows.