Biochemical and Ultrastructural Changes in the Hepatopancreas of Bellamya aeruginosa (Gastropoda) Fed with Toxic Cyanobacteria

Figure 4

Ultrastructural changes in the hepatopancreas of B. aeruginosa exposed to the suspension of M. aeruginosa and mixed algae, respectively. (a) Mitochondria and glycogen (yellow arrow) of control snail, 50000x. (b) The swelling and vesiculation of mitochondria in the mixed group at 10 days postexposure, 50000x. (c) The loss of cristae and matrix in mitochondria in the cyanobacterial group at 15 days postexposure, 50000x. (d) Most mitochondria recovered considerably at the end of the experiment in the mixed group, 50000x. (e) The occurrence of myelinated structures (yellow arrow) in matrix of mitochondria in the cyanobacterial group at 15 days postexposure, 32000x. (f) The recovery of mitochondria and myelinated structures (yellow arrow) at the end of the experiment in the cyanobacterial group, 32000x.