Distribution of carbonic anhydrase in digestive tract of pond loach (Misgurnus anguilicaudatus).
Carbonic anhydrase (CA) family is discovered in various species including mammals, avians and even plants, but it is rarely reported in fishes. Ten Pond Loaches were used in this study. The results indicated that no evidence of distribution of CA in esophagus. Nonetheless CA was found in the mucosal epithelium of stomach and in the villous epithelium of intestine demonstrated histochemically by the numerous black sedimentation of cobaltous sulfide (CoS) in these areas. In addition, black sedimentations of CoS were also found in all the vascular endothelium examined and red blood cells of digestive tract. The distribution of CA in Pond loach was more closely resemble amphibians than to other species, suggesting evolutional adaptation for Pond loach in aquatic environments.
Chang
Ming-Huang
MH
Department of Veterinary Medicine, College of Agriculture, National Chiayi University, Chiayi, Taiwan, ROC.
Lo
Dan-Yuan
DY
Chou
Chi-Chung
CC
Lee
Wei-Ming
WM
D000818:Animals; D002256:Carbonic Anhydrases / Q000378:metabolism*; D003531:Cypriniformes; D004730:Endothelium, Vascular / Q000201:enzymology; D004912:Erythrocytes / Q000201:enzymology; D041981:Gastrointestinal Tract / Q000098:blood supply / Q000201:enzymology*
D002256:Carbonic Anhydrases