Acid-base responses to feeding and intestinal Cl- uptake in freshwater- and seawater-acclimated killifish, Fundulus heteroclitus, an agastric euryhaline teleost

The Journal of Experimental Biology
Chris M WoodMartin Grosell

Abstract

Marine teleosts generally secrete basic equivalents (HCO(3)(-)) and take up Na(+) and Cl(-) in the intestine so as to promote absorption of H(2)O. However, neither the integration of these functions with feeding nor the potential role of the gut in ionoregulation and acid-base balance in freshwater have been well studied. The euryhaline killifish (Fundulus heteroclitus) is unusual in lacking both an acid-secreting stomach and a mechanism for Cl(-) uptake at the gills in freshwater. Responses to a satiation meal were evaluated in both freshwater- and seawater-acclimated killifish. In intact animals, there was no change in acid or base flux to the external water after the meal, in accord with the absence of any post-prandial alkaline tide in the blood. Indeed, freshwater animals exhibited a post-prandial metabolic acidosis ('acidic tide'), whereas seawater animals showed no change in blood acid-base status. In vitro gut sac experiments revealed a substantially higher rate of Cl(-) absorption by the intestine in freshwater killifish, which was greatest at 1-3 h after feeding. The Cl(-) concentration of the absorbate was higher in preparations from freshwater animals than from seawater killifish and increased with fasting. Surprisi...Continue Reading

References

Jun 1, 1990·Biophysical Journal·J A UmbachE M Wright
Jan 1, 1995·Annual Review of Pharmacology and Toxicology·G SachsS Hersey
Feb 8, 2000·Comparative Biochemistry and Physiology. Part C, Pharmacology, Toxicology & Endocrinology·M GrosellC M Wood
Mar 20, 2001·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·W S Marshall, S E Bryson
Sep 7, 2001·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·K M Gilmour
Jun 25, 2002·Journal of Clinical Gastroenterology·Yaron Niv, Gerald M Fraser
Nov 8, 2002·Biochimica Et Biophysica Acta·W S Marshall, T D Singer
Nov 8, 2002·Biochimica Et Biophysica Acta·Rod W WilsonMartin Grosell
Sep 18, 2003·Physiological and Biochemical Zoology : PBZ·Johnnie Bremholm Andersen, Tobias Wang
Sep 1, 1956·Journal of Applied Physiology·A F BRADLEYM STUPFEL
Jan 20, 2004·Biochimica Et Biophysica Acta·Chris M Wood, Pierre Laurent
Mar 11, 2004·The Journal of Experimental Biology·Denis V AndradeTobias Wang
Dec 4, 2004·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·M GrosellF B Jensen
Jul 8, 2005·The Journal of Experimental Biology·Chris M WoodPatrick J Walsh
Jul 22, 2006·The Journal of Experimental Biology·Martin Grosell
Jul 22, 2006·The Journal of Experimental Biology·Josi R Taylor, Martin Grosell
Dec 5, 2006·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Martin Grosell, Josi R Taylor
Feb 7, 2007·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Sunita Rao NadellaChris M Wood
Mar 29, 2007·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Josi R TaylorMartin Grosell
Jul 28, 2007·Respiratory Physiology & Neurobiology·Chris M WoodSunita Nadella
Sep 1, 2007·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Martin GrosellSteven F Perry
Apr 2, 2008·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Chris M Wood, Martin Grosell
Jul 16, 2008·The Journal of Experimental Biology·Graham R ScottChris M Wood
Jul 16, 2008·The Journal of Experimental Biology·Carol Bucking, Chris M Wood
Feb 17, 2009·The Journal of Experimental Biology·Chris M WoodPatrick J Walsh
Jun 30, 2009·The Journal of Experimental Biology·Carol BuckingChris M Wood

❮ Previous
Next ❯

Citations

Oct 28, 2010·The Journal of Biological Chemistry·Ivana NovakSusanne E Hede
Jul 8, 2011·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Jonathan M Whittamore
Oct 14, 2011·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Carol Bucking, Chris M Wood
Jan 10, 2012·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Carol Bucking, Patricia M Schulte
Jun 15, 2011·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Janet Genz, Martin Grosell
Dec 30, 2014·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Julian G RubinoChris M Wood
Dec 22, 2014·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Bernd PelsterAdalberto Val
Aug 16, 2016·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Carol Bucking
Nov 3, 2016·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Tiziano VerriAlessandro Romano
Jul 18, 2019·Proceedings. Biological Sciences·Chris M Wood, Junho Eom
Jun 18, 2020·Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology·Ilan M RuhrMartin Grosell
Aug 26, 2011·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·S GuffeyM Grosell
May 28, 2020·Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology·Martin TresguerresColin J Brauner
Jul 20, 2017·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Alyssa M WeinrauchGreg G Goss
May 30, 2019·The Journal of Experimental Biology·Sandra FehsenfeldMichael J O'Donnell
Apr 2, 2021·Scientific Reports·Mari KawaguchiShigeki Yasumasu
Mar 31, 2021·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Alex M ZimmerChris N Glover
May 11, 2012·The Journal of Experimental Biology·Carol BuckingMartin Grosell
Aug 31, 2019·The Journal of Experimental Biology·Chris M WoodMartin Grosell
Apr 24, 2021·Genome Biology and Evolution·Chao TongKai Zhao

❮ Previous
Next ❯

Related Concepts

Related Feeds

ATP Synthases

ATP synthases are enzymes located in the inner mitochondrial membrane that catalyze the synthesis of ATP during cellular respiration. Discover the latest research on ATP synthases here.