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Foster C, Amado EM, Souza MM, Freire CA. Do osmoregulators have lower capacity of muscle water regulation than osmoconformers? A study on decapod crustaceans. ACTA ACUST UNITED AC 2009; 313:80-94. [DOI: 10.1002/jez.575] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Whiteley NM, Scott JL, Breeze SJ, McCann L. Effects of water salinity on acid-base balance in decapod crustaceans. J Exp Biol 2001; 204:1003-11. [PMID: 11171423 DOI: 10.1242/jeb.204.5.1003] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Extracellular acid-base balance in decapod crustaceans is influenced by water salinity, although the nature of this relationship is unclear. In euryhaline crabs, a decrease in salinity results in a metabolic alkalosis in the haemolymph and an increase in salinity results in a metabolic acidosis. Alterations in acid-base status by external changes in salinity are thought to be secondary to the adjustments required for ionic and osmotic regulation. In the present study, acid-base adjustments in the haemolymph of Eriocheir sinensis after transfer to 30 % sea water accompanied alterations in muscle pH and [HCO(3)(−)], as an initial acidosis coincided with an alkalosis in the leg muscle. By 48 h transfer, haemolymph pH increased as muscle pH and HCO(3)(−) declined. Haemolymph [Cl(−)] decreased significantly 3 h after transfer to a new steady state but haemolymph [Na(+)] and muscle [Na(+)] and [Cl(−)] remained unchanged. Muscle free amino acid concentration increased twofold 6 h after transfer, followed by a 2.5-fold increase in the haemolymph after 24 h. In contrast, 30 % sea water had no effect on haemolymph acid-base adjustments in the osmoconforming crab, Necora puber, which lacks ion and osmo-regulatory mechansims. Collectively these observations support the view that salinity-induced alterations in acid-base status are caused by adjustments consistent with cell volume regulation.
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Affiliation(s)
- N M Whiteley
- School of Biological Sciences, University of Wales Bangor, Gwynedd LL57 2UW, UK.
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Gllles R, Delpire E. Variations in Salinity, Osmolarity, and Water Availability: Vertebrates and Invertebrates. Compr Physiol 1997. [DOI: 10.1002/cphy.cp130222] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Herrera FC, López I, Egea R, Zanders I. Short-term osmotic responses of cells and tissues of the sea anemone, Condylactis gigantea. ACTA ACUST UNITED AC 1989. [DOI: 10.1016/0300-9629(89)90579-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Volume Regulation in Cells of Euryhaline Invertebrates. CELL VOLUME CONTROL: FUNDAMENTAL AND COMPARATIVE ASPECTS IN ANIMAL CELLS 1987. [DOI: 10.1016/s0070-2161(08)60372-x] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Gilles R, Péqueux A. Cell volume regulation in crustaceans: Relationship between mechanisms for controlling the osmolality of extracellular and intracellular fluids. ACTA ACUST UNITED AC 1981. [DOI: 10.1002/jez.1402150312] [Citation(s) in RCA: 62] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Gilles R. Mechanisms of volume regulation and control of the level of intracellular osmotic effectors. JPEN J Parenter Enteral Nutr 1980; 4:121-30. [PMID: 7401257 DOI: 10.1177/014860718000400210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Kevers C, P�queux A, Gilles R. Effects of an hypo-osmotic shock on Na+, K+ and Cl? levels in isolated axons ofCarcinus maenas. ACTA ACUST UNITED AC 1979. [DOI: 10.1007/bf00686995] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Effects of hypo- and hyperosmotic shocks on the volume and ions content of Carcnus maenas isolated axons. ACTA ACUST UNITED AC 1979. [DOI: 10.1016/0300-9629(79)90464-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Gilles R. Effects of osmotic stresses on the proteins concentration and pattern of Eriocheir sinensis blood. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. A, COMPARATIVE PHYSIOLOGY 1977; 56:109-14. [PMID: 11919 DOI: 10.1016/0300-9629(77)90170-0] [Citation(s) in RCA: 61] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Studies on the effect of nacl on the activity of Eriocheir sinensis glutamate dehydrogenase. ACTA ACUST UNITED AC 1974. [DOI: 10.1016/0020-711x(74)90025-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Gilles R, Gerard JF. Amino-acid metabolism during osmotic stress in isolated axons of Callinectes sapidus. Life Sci 1974; 14:1221-9. [PMID: 4823634 DOI: 10.1016/0024-3205(74)90429-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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