perivitelline การใช้

This signal acts after the egg has left the follicle cells so this signal is stored in the perivitelline space.
The follicle cells secrete "'Torso-like "'into the perivitelline space only at the poles.
Once the spermatozoon has entered, the peripheral portion of the yolk changes into a membrane, the perivitelline membrane, which prevents the passage of additional spermatozoa.
In the cortical reaction, cortical granules directly beneath the plasma membrane are released into the space between the plasma membrane and the vitelline membrane ( the perivitelline space ).
"S . gibbosa " have unique eggs because they do not possess a wide perivitelline space ( an important aspect to sardinella eggs and most pelagic fish ).