RAB11A and cyst: The formation of encystment vesicles (positive for ENO) occurred at the same time with Rab11 relocation from the plasma membrane to these vesicles, and it was until later times that F-actin was observed colocalizing with ENO+/Rab11+ vesicles; this last observation suggests that the transport of vesicles could be through F-actin during cyst differentiation.