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The multifunctional fish gill: dominant site of gas exchange, osmoregulation, acid-base regulation, and excretion of nitrogenous waste.
The fish gill is a multipurpose organ that, in addition to providing for aquatic gas exchange, plays dominant roles in osmotic and ionic regulation, acid-base regulation, and excretion of nitrogenousExpand
Pendrin immunoreactivity in the gill epithelium of a euryhaline elasmobranch.
Pendrin is an anion exchanger in the cortical collecting duct of the mammalian nephron that appears to mediate apical Cl(-)/HCO3(-) exchange in bicarbonate-secreting intercalated cells. The goals ofExpand
Ionic transport in the fish gill epithelium
The gill of fishes is modified for gas exchange, thereby providing a site for net movement of salts and water down their respective gradients. Specialized cells in the gill epithelium are joined byExpand
Effects of environmental salinity on Na(+)/K(+)-ATPase in the gills and rectal gland of a euryhaline elasmobranch (Dasyatis sabina).
Changes in Na(+)/K(+)-ATPase activity and abundance associated with environmental salinity were investigated in the gills and rectal gland of the Atlantic stingray Dasyatis sabina. Using aExpand
Immunochemical analysis of the vacuolar proton-ATPase B-subunit in the gills of a euryhaline stingray (Dasyatis sabina): effects of salinity and relation to Na(+)/K(+)-ATPase.
In the gills of freshwater teleost fishes, vacuolar proton-ATPase (V-H(+)-ATPase) is found on the apical membrane of pavement and chloride (Na(+)/K(+)-ATPase-rich) cells, and is an importantExpand
Effect of Human Carbonic Anhydrase II on the Activity of the Human Electrogenic Na/HCO3 Cotransporter NBCe1-A in Xenopus Oocytes*
Others report that carbonic anhydrase II (CA II) binds to the C termini of the anion exchanger AE1 and the electrogenic Na/HCO3 cotransporter NBCe1-A, enhancing transport. After injecting oocytesExpand
The accumulation of methylamine counteracting solutes in elasmobranchs with differing levels of urea: a comparison of marine and freshwater species
SUMMARY We compared levels of the major organic osmolytes in the muscle of elasmobranchs, including the methylamines trimethylamine oxide (TMAO), betaine and sarcosine as well as the β-amino acidsExpand
Osmoregulation of the Atlantic Stingray (Dasyatis sabina) from the Freshwater Lake Jesup of the St. Johns River, Florida
  • P. Piermarini, David H. Evans
  • Biology, Medicine
  • Physiological Zoology
  • 1 September 1998
The goals of this study were to (1) measure plasma osmolytes and rectal gland weights of a freshwater (FW) Atlantic stingray (Dasyatis sabina) population in the St. Johns River, Florida, and (2)Expand
Neuronal nitric oxide synthase in the gill of the killifish, Fundulus heteroclitus.
Neuronal NOS (nNOS) is a constitutively expressed enzyme that catalyzes the oxidation of L-arginine and water to L-citrulline and the gas nitric oxide (NO). Nitric oxide is involved in regulation ofExpand