title: Histoenzymological studies on the distribution of Ca++-activated adenosine triphosphatase amongst the constituents of the retinae of Varanus and Ptyas.
abstract: A comparative histoenzymological study of the distribution of Ca++-activated adenosine triphosphatase amongst the various constituents of the retinae of Varanus and Ptyas, hitherto not reported in the literature, has been made in great detail. The outer segment has shown an enzymatic activity of a very high degree both in Varanus and Ptyas. A detailed discussion is incorporated in analysing the possible role of the enzyme in the metabolic set-up of the area in relation to the resolution of the stimuli. Besides the outer segments, the areas possessing the lay-outs of nerve fibres and synaptic contacts have also shown ATPase activity of high degree in the retinae. The role of the ATPase in the nerve fibres and the synapses has been discussed in detail.
mesh_terms: D000818:Animals; D000252:Calcium-Transporting ATPases / Q000032:analysis*; D006651:Histocytochemistry; D008116:Lizards; D012160:Retina / Q000201:enzymology*; D012911:Snakes; D014018:Tissue Distribution
chemical_list: D000252:Calcium-Transporting ATPases