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Effects of an hypo-osmotic shock on Na+, K+ and Cl levels in isolated axons of Carcinus maenas
Kevers, C.; Péqueux, A.; Gilles, R. (1979). Effects of an hypo-osmotic shock on Na+, K+ and Cl levels in isolated axons of Carcinus maenas. J. Comp. Physiol. A Sens. Neural Behav. Physiol. 129(4): 365-371. hdl.handle.net/10.1007/BF00686995
In: Journal of Comparative Physiology A. Sensory, Neural, and Behavioral Physiology. Springer: Heidelberg; Berlin. ISSN 0340-7594, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Kevers, C.
  • Péqueux, A.
  • Gilles, R., more

Abstract
    Application of an hypo-osmotic shock to isolated axons of Carcinus maenas induces a decrease in the intracellular content of K+, Na+ and Cl. The changes in Na+ and Cl levels are only transitory while the K+ level reaches new steady-state value much lower than the control. The modification of K+ concentration cannot be ascribed only to a simple dilution process and it is proposed that the regulation of intracellular K+ plays an important role in limiting the swelling which occurs in this tissue.Hypo-osmotic conditions also induce an increase in Na+ permeability.The results are discussed in relation to changes in ion transport and interactions with intracellular organic compounds that could arise during the process of volume regulation.

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