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The Role Of Na+ + K+ -Activated Adenosine Triphosphatase In The Osmoregulating Marsh Clam, Rangia Cuneata, David Goodwin Sainting
The Role Of Na+ + K+ -Activated Adenosine Triphosphatase In The Osmoregulating Marsh Clam, Rangia Cuneata, David Goodwin Sainting
Master's Theses
The marsh clam, Rangia cuneata has been shown in other laboratories to maintain body fluid osmolality above that of the medium in salinities below 10 o/oo. Since the membrane bound enzyme Na ++ K+ - ATPase has been implicated in the osmoregulatory processes in many aquatic organisms, the levels of Na++K+-ATPase activity and 3H-ouabain binding in homogenized tissue samples from mantle, gill, rectum, ventricle, kidney, and foot (including epithelial and muscle tissue) were measured. Mantle, kidney, and gill contained substantial concentrations o f Na + +K+ -AT Pase acti. vi. ty an d 3H- ouab ai. n bin d"i ng …