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Electro-Osmosis in Squid Axons

Published online by Cambridge University Press:  11 May 2009

W. B. Stallworthy
Affiliation:
Mount Allison University, Sackville, New Brunswick, Canada.
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When electro-osmosis is observed through a substance (or tissue) certain inferences can be made about the fine structure of the substance. These include the presence of a zeta potential whose sign is the same as that of the electrode towards which water moves, and the presence of interstices or channels large enough to allow ions to move through them and to sweep along more water molecules than those carried as hydration shells. Channels too large may permit both positive and negative ions to move or at least allow a counter flow of water to reduce the net (observable) movement of water molecules.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1970

References

REFERENCES

Caldwell, P. C., 1960. The phosphorus metabolism of squid axons and its relationship to the active transport of sodium. J. Physiol., Lond., Vol. 152, pp. 545–60.Google Scholar
Cole, K. S. & Hodgkin, A. L., 1939. Membrane and protoplasm resistance in the squid giant axon. J. gen. Physiol., Vol. 22, pp. 671–87.Google Scholar
Dainty, J., Croghan, P. C. & Fensom, D. S., 1963. Electro-osmosis, with some applications to plant physiology. Can. J. Bot., Vol. 41, pp. 953–66.Google Scholar
Dainty, J. & Hope, A. B., 1959. The water permeability of cells of Chara australis R. Br. Aust. J. biol. Set., Vol. 12, pp. 136–45.Google Scholar
Fensom, D. S. & Dainty, J., 1963. Electro-osmosis in Nitella. Can. J. Bot., Vol. 41, pp. 685–91.Google Scholar
Fensom, D. S., Ursino, D. J. & Nelson, C. D., 1967. Determination of relative pore size in living membranes of Nitella by the techniques of electro-osmosis and radioactive tracers. Can. J. Bot., Vol. 45, pp. 1267–75.Google Scholar
Fensom, D. S. & Wanless, I. R., 1967. Further studies of electro-osmosis in Nitella in relation to pores in membranes. J. exp. Bot., Vol. 18, pp. 563–77.Google Scholar
Hodgkin, A. L., Huxley, A. F. & Katz, B., 1952. Measurement of current-voltage relations in the membrane of the giant axon of Loligo. J. PhysioL, Lond., Vol. 116, pp. 424–48.Google Scholar
Hodgkin, A. L. & Keynes, R. D., 1955. Potassium permeability of a giant nerve fiber. J. Physiol, Lond., Vol. 128, pp. 6188.CrossRefGoogle Scholar
House, C. R., 1964. The nature of water transport across frog skin. Biophys. J., Vol. 4, pp. 401–16.Google Scholar
Kedem, O. & Katchalsky, A., 1963. The permeability of composite membranes, Part I—Electric current, volume flow and flow of solute through membranes. Trans. Faraday Soc., Vol. 59, pp. 1918–30.Google Scholar
Macrobbie, E. A. C. & Fensom, D. S., 1969. Measurements of electro-osmosis in Nitella translucens. J. exp. Bot., Vol. 20, pp. 466–84.CrossRefGoogle Scholar
Mudd, S., 1926. Electroendosmosis through mammalian serous membranes. III. The relation of current strength and specific resistance to rate of liquid transport. Transport rate with serum. J. gen. Physiol., Vol. 9, pp. 361–73.Google Scholar
Sawyer, P. N. & Harshaw, D. H., 1966. Electroosmotic characteristics of canine aorta and vena cava wall. Biophys. J., Vol. 6, pp. 653–63.CrossRefGoogle ScholarPubMed
Solomon, A. K., 1960. Red cell membrane structure and ion transport. J. gen. Physiol., Vol. 43, Suppl. I, pp. 115.Google Scholar
Spiegler, K. S., 1958. Transport processes in ionic membranes. Trans. Faraday Soc., pp. 1408–28.Google Scholar
Stämpfli, R., 1959. Is the resting potential of ranvier nodes a potassium potential? Ann. N.Y. Acad. Sci., Vol. 81, pp. 265–84.Google Scholar
Stallworthy, W. B. & Fensom, D. S., 1966. Electro-osmosis in axons of freshly killed squid. Can. J. Physiol. Pharmac., Vol. 44, pp. 866–70.CrossRefGoogle Scholar