Our combined data demonstrate that OBs and g-exonemes are different
types of vesicles, which discharge at different time points
post-activation with the exocytosis of the OBs preceding discharge of
the g-exonemes. Further, we showed that exocytosis of the g-exonemes,
but not of the OBs, is sensitive to the calcium chelator BAPTA-AM,
indicating its dependency on intracellular calcium.