Cell potassium and the significance of osmolarity in vertebrates

Burton, R.F. (1968) Cell potassium and the significance of osmolarity in vertebrates. Comparative Biochemistry and Physiology, 27(3), pp. 763-773. (doi:10.1016/0010-406X(68)90616-6) (PMID:5710281)

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Abstract

1. In animals in which the concentration of sodium in the plasma or haemolymph is 130–530 mM/1, concentrations of potassium in muscle cytoplasm are remarkably similar. 2. Only in animals with more dilute body fluids does the concentration of of potassium in the muscle characteristic of the species decrease with the concentration of sodium in the extracellular fluid. 3. It is suggested that the dilution of the body fluids accompanying the original invasion of fresh water by the vertebrates was limited by the need to maintain optimum cellular levels of potassium.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Burton, Dr Richard
Authors: Burton, R.F.
College/School:College of Medical Veterinary and Life Sciences > School of Life Sciences
Journal Name:Comparative Biochemistry and Physiology
Publisher:Pergamon Press
ISSN:0010-406X

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