Localization of NaK ATPase activity in the nautilus siphuncle

Autor:	Gustav Verderber, Lewis Greenwald, Carl T. Singley
Rok vydání:	1984
Předmět:	Siphuncle biology Hydrostatic pressure Chambered nautilus General Medicine Anatomy biology.organism_classification Osmosis Ouabain Biophysics medicine Osmotic pressure Animal Science and Zoology Na+/K+-ATPase Nautilus medicine.drug
Zdroj:	Journal of Experimental Zoology. 229:481-484
ISSN:	1097-010X 0022-104X
DOI:	10.1002/jez.1402290316
Popis:	The siphuncle of the chambered nautilus (Nautilus spp) can transport cameral liquid against osmotic pressure gradients, and is presumed to be able to transport against hydrostatic pressure gradients. It is hypothesized that the mechanism of such transport involves “local osmosis” in which the siphuncle actively trasports sodium into the blind-ended sacs of the siphuncle cells' basolateral labyrinth. This study supports this hypothesis since NaK ATPase activity was localized only over the membranes of the labyrinth. The appearance of the reaction product required potassium and was inhibited by ouabain, a specific inhibitor of the NaK ATPase.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c57c2dd50d2eccdb741ae10802f7754a https://doi.org/10.1002/jez.1402290316 Zobrazit plný text záznamu Plný text