Fig. 3. (A) ER clusters continue to form during 5-HT-induced oocyte maturation in 20 µM curcumin or 20 µM SB-202190 (inset). Large oocyte in upper right of A is from C. lacteus; others are from Cerebratulus sp. (B) SP600125 fails to block 5-HT-induced GVBD in Cerebratulus sp. but does prevent ER clusters formation. Scale bars: 50 µm.