title: A comparative histochemical study of alkaline phosphatase and acetylcholinesterase in the hind-brain of Channa punctatus and Heteropneustes fossils.
abstract: The presentation deals with the distribution of alkaline phosphatase (GP-AII) and acetylcholinesterase (CHO-A) in the hind brain of Channa punctatus, and Heteropneustes fossils and the following results have been obtained: CHO-A is localized only in the neurons. The motor neurons show a stronger staining than the sensory neurons. In Heteropneustes the sensory nuclei of the VIIth and Xth nerve are better developed and show stronger activity of CHO-A than Channa. In Channa, motor nuclei are better developed and show stronger activity of CHO-A than in Heteropneustes. Irrespective of their sensory or motor nature, all the cranial nerve nuclei exhibit a strong GP-AII activity. Purkinje cells of Heteropneustes show stronger activity of GP-AII than Channa. The functional significance of the enzyme as compared with other vertebrates is discussed.
mesh_terms: D000110:Acetylcholinesterase / Q000032:analysis*; D000469:Alkaline Phosphatase / Q000032:analysis*; D000818:Animals; D001921:Brain / Q000201:enzymology*; D005399:Fishes; D006651:Histocytochemistry; D014018:Tissue Distribution
chemical_list: D000110:Acetylcholinesterase; D000469:Alkaline Phosphatase