... 2021 Summary: Na + /H + exchangers contribute differentially to sodium and pH regulation in the midgut fluids of the sea urchin larva. Acid–base regulation Alkaline midgut Ion-selective microelectrodes NHE Ocean acidification Sodium/hydrogen exchanger In contrast...

..., has an established role in potassium and acid–base regulation in mammals and is well known for its role in gastric acidification. However, the role of HKA in extra-gastric organs such as the gill and kidney is less clear, especially in fishes. In the present study in Nile tilapia, Oreochromis...

... regulation among fish by measuring pH i regulation in 10 different fish species that are broadly phylogenetically separated, spanning six orders, eight families and 10 genera. Contrary to previous views, we show that preferential pH i regulation is the most common strategy for acid–base regulation within...

.... and Weihrauch , D. ( 2013 ). Differential acid-base regulation in various gills of the green crab Carcinus maenas: Effects of elevated environmental pCO2 . Comp. Biochem Physiol. A   164 , 54 - 65 . 10.1016/j.cbpa.2012.09.016 Fehsenfeld , S. and Weihrauch , D. ( 2016 ). Mechanisms...

... regulation has been identified in several adult fish species and an aquatic amphibian, but never in adult amniotes. Recently, common snapping turtles were observed to preferentially regulate pH i during development; the pattern of acid–base regulation in these species shifts from preferential pH i regulation...

... disturbances. This pattern of acid–base regulation has never been observed before in amniotes. Acid–base regulation Development Reptile Preferential pH i regulation Hypercarbia Amniotes Physiology CO 2 The nests of many reptiles naturally experience changes in CO 2 levels, often...

... Brauner , C. J. and Baker , D. W. ( 2009 ). Patterns of Acid-base Regulation During Exposure to Hypercarbia in Fishes. Cardio-respiratory Control in Vertebrates , pp. 43 - 63 . Berlin Heidelberg : Springer . Brauner , C. J. , Wang , T. , Wang , Y. , Richards , J. G...

.... and J.M.W. revised the manuscript. Competing interests The authors declare no competing financial interests. 21 10 2013 20 5 2014 © 2014. Published by The Company of Biologists Ltd 2014 Carp Cyprinus carpio Kidney Acid–base regulation Ion regulation Renal...

.... , Thorndyke   M. ( 2010 ). Impact of near-future ocean acidification on echinoderms . Ecotoxicology   19 , 449 - 462 . Evans   D. H. , Piermarini   P. M. , Choe   K. P. ( 2005 ). The multifunctional fish gill: dominant site of gas exchange, osmoregulation, acid-base regulation...

.... , Hamill   O. P. , Sakmann   B. ( 1987 ). Mechanism of anion permeation through channels gated by glycine and gamma-aminobutyric acid in mouse cultured spinal neurones . J. Physiol.   385 , 243 - 286 . Brauner   C. J. , Baker   D. W. ( 2009 ). Patterns of acid-base regulation during...

... in the insect armor? If so, it may be possible to identify compounds with pharmacological activity on insect receptors that are blind to vertebrate receptors, or among insect taxa,providing a novel, specific, control strategy. Aedes aegypti serotonin hemolymph acid–base regulation SSRI 2009...

...K. M. Gilmour; S. F. Perry SUMMARY Carbonic anhydrase (CA) is the zinc metalloenzyme that catalyses the reversible reactions of CO 2 with water. CA plays a crucial role in systemic acid–base regulation in fish by providing acid–base equivalents for exchange with the environment. Unlike air...

... tilapia MR cells (T. Kaneko, personal communication). e-mail: [email protected] 21 1 2009 2009 mitochondria-rich cells embryo ion regulation acid–base regulation Homeostasis of body fluids is vital for vertebrates including fish. Compared with terrestrial...

... Ursachen. Deut. Arch. Klin. Med. 117 , 497 -516. Evans, D. H., Piermarini, P. M. and Choe, K. P. ( 2005 ). The multifunctional fish gill: dominant site of gas exchange, osmoregulation, acid-base regulation, and excretion of nitrogenous waste. Physiol. Rev. 85 , 97 -177. Finke, M. D...

... ). Acid-base regulation. In The Physiology of Fishes (ed. D. H. Evans), pp. 177 -197. Boca Raton: CRC Press. Claiborne, J. B. and Evans, D. H. ( 1988 ). Ammonia and acid-base balance during high ammonia exposure in a marine teleost Myoxocephalus octodecemspinosus. J. Exp. Biol. 140 , 89 -106...

...Martin Tresguerres; Fumi Katoh; Heather Fenton; Edyta Jasinska; Greg G. Goss SUMMARY To study the mechanisms of branchial acid-base regulation, Pacific spiny dogfish were infused intravenously for 24 h with either HCl (495± 79μmol kg -1 h -1 ) or NaHCO 3 (981±235μmol kg -1 h -1 ). Infusion of HCl...

... and degree of pH recovery during hypercapnia. Waters of the Amazon are characteristically dilute in ions, which may have consequences for acid-base regulation during environmental hypercapnia in endemic fishes. The armoured catfish Liposarcus pardalis , from the Amazon, was exposed to a water P CO 2 of 7, 14...

...: critical temperatures in metabolic, ionic and acid-base regulation? In Cold Ocean Physiology (ed. H. O. Pörtner and R. Playle ), pp. 88 – 120 . Cambridge : University Press . Reeves , R. B. ( 1972 ). An imidazole alphastat hypothesis for vertebrate acid-base regulation...

...-bremerhaven.de † Present address: Institut für Tierphysiologie, Freie Universität Berlin, Grunewaldstrasse 34, D-12165, Berlin, Germany 9 10 1997 9 12 1997 © The Company of Biologists Limited 1988 acid–base regulation ammonia excretion buffer value CO2 partial pressure...

... for correspondence (e-mail: [email protected] ). 17 07 1997 ©The Company of Biologists Limited 1997 acid–base regulation hypercapnia pH compensation fixed buffer resources transfer of acid–base equivalents Rana catesbeiana In adult amphibians, exposure to environmental...