Cellular and Molecular Approaches to Fish Ionic Regulation by Chris M. Wood PDF

By Chris M. Wood

ISBN-10: 0123504384

ISBN-13: 9780123504388

Many physiological procedures are regulated via the stream of ions into and out of organs, tissues, and cells. up to now decade, various new recommendations and ways have contributed to a deeper figuring out of the myriad affects ions have at the functionality and constitution of organisms. From breathing and excretion to neurological regulate and metabolic processing, ions and their rules occupy a imperative position in body structure of fish in addition to different organisms. Key positive factors * entire replace of ionic law in fish * specializes in wide array of organ structures and the impression of ions on organ process functionality * Contributions from a global crew

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B. (1983). Sodium chloride absorption across the body surface: Frog skins and other epithelia. Am. J . Physiol. 244, R429-R443. Klyce, S. , and Wong, R. K. S. (1977). Site and mode of adrenaline action on chloride transport across rabbit corneal epithelium. J . Physiol. (London) 266, 777-799. , and Randall, D. (1991). Evidence for the presence of an electrogenic proton pump on the trout gill epithelium. J . Exp. Biol. 161, 119-134. Loretz, C. , and Bern, H. A. (1980). Ion transport by the urinary bladder of the gobiid teleost, Gillichthys mirabilis.

A. (1982). Na+-K+-CI- cotransport in the intestine of a marine teleost. Nature (London) 300, 351-353. ,and Sjoberg, P. (1993). Primary cultures of epithelial cells from rainbow trout gills. J. Exp. Biol. 175, 219-232. , and Marshall, W. S. (1988). NaCl transport in gills and related structures. Adv. Comp. Environ. Physiol. 1, 1-73. Philpott, C. , and Copeland, D. E. (1963). Fine structure of chloride cells from three species of Fundulus. J. Cell Biol. 18, 389-404. , and Rarnbourg, A. (1991). Mitochondria-rich cells in the gill epithelium of teleosts fishes: An ultrastructural approach.

LORETZ 2. IONICBASISFOR THE TRANSEPITHELIAL POTENTIAL Ion transport across the teleost intestine, summarized in Fig. 2, depends ultimately on the basolateral membrane Na+-K+-ATPase,which establishes a large inwardly directed electrochemical gradient for Na+. Transepithelialsalt absorption begins with the coupled, electrically neutral entry of Na+ and C1- across the apical membrane, driven by the Na+ electrochemical gradient. , 1980; and C1-/HC03- antiport: Dixon and Loretz, 1986) pathways. , 1979b), the observed serosa-negative V , was proposed to result from the active transport of Na+ across both the basal and lateral cell membranes; in this model, Na+ delivered to the lateral intercellular space (LIS) would diffuse either through the long and tortuous LIS to the serosal solution or, preferentially, across the cation-selective terminal junction into the mucosal solution, thereby establishing serosal negativity.

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Cellular and Molecular Approaches to Fish Ionic Regulation by Chris M. Wood

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