Summary
The occurrence is reported of cells of Hydrodictyon africanum which have, contrary to previous reports by the author, a K influx which is almost insensitive to ouabain. The conditions which govern the ouabain-sensitivity of the K influx have not yet been defined. The low ouabain sensitivity of the total K influx seems to be related to a smaller than usual activity of the component of K influx which is linked to Na efflux, and also to a smaller sensitivity of this component to inhibition by ouabain. The major components of K influx in ouabain-insensitive cells correspond to those components previously described as the passive and Cl-linked components.
The occurrence is also reported of an increased sensitivity of active Cl influx (and the coupled cation influxes) in the light to uncouplers when the medium is aerated or otherwise stirred.
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References
Bonting, S. L.: Sodium-potassium activated adenosinetriphosphatase and cation transport. In: Membranes and Ion Transport, vol. 1, 257–363, ed. E. E. Bittar. London: Wiley-Interscience 1970.
Canny, M. J. P.: Ion accumulation in Hydrodictyon. Ph. D. Thesis, University of Cambridge, 1–189 (1956).
Dee, E., Conway, E. J.: The relation between sodium ion content and efflux of labelled sodium ions from yeast. Biochem. J. 107, 265–271 (1968).
Findlay, G. P., Hope, A. B., Pitman, M. G., Smith, F. A., Walker, N. A.: Ionic fluxes in cells of Chara corallina. Biochim. biophys. Acta (Amst.) 183, 565–576 (1969).
Fogg, G. E., Than-Tun: Interrelations of photosynthesis and assimilation of elementary nitrogen in a blue-green alga. Proc. roy. Soc. B 153, 111–127 (1960).
Gutknecht, J., Dainty, J.: Ionic relations of marine algae. Oceanogr. Mar. Biol. Ann. Rev. 6, 163–200 (1968).
Hilden, S.: Sodium and potassium levels in Blepharisma intermedium. Exp. Cell Res. 61, 246–254 (1970).
Hope, A. B., Walker, N. A.: Ionic relations of Chara australis. III. Vacuolar fluxes of sodium. Aust. J. biol. Sci. 13, 277–291 (1960).
Janacek, K., Rybova, R.: The effect of ouabain on the alga Hydrodictyon reticulatum. Cytologia (Tokyo) 31, 199–202 (1966).
Jeschke, W. D.: Die cyclische und die nichtcyclische Photophosphorylation als Energiequellen der lichtabhängigen Chloridionenaufnahme bei Elodea. Planta (Berl.) 73, 161–174 (1967).
—, Simonis, W.: Über die Wirkung von CO2 auf die lichtabhängige Cl-Aufnahme bei Elodea densa: Regulation zwischen nichtcyclischer und cyclischer Photophosphorylierung. Planta (Berl.) 88, 157–171 (1969).
Kotyk, A., Janacek, K.: Cell membrane transport, p. x+498. New York-London: Plenum Press 1970.
Lannoye, R. J., Tarr, S. E., Dainty, J.: The effects of pH on the ionic and electrical properties of the internodal cells of Chara australis. J. exp. Bot. 21, 543–551 (1970).
Lüttge, U., Pallaghy, C. K., Osmond, C. B.: Coupling of ion transport in green cells of Atriplex spongiosa leaves to energy sources in the light and in the dark. J. Membrane Biol. 2, 17–30 (1970).
MacRobbie, E. A. C.: Ionic relations of Nitella translucens. J. gen. Physiol. 45, 861–878 (1962).
—: Metabolic effects on ion fluxes in Nitella translucens. I. Active influxes. Aust. J. biol. Sci. 19, 363–370 (1966).
—: Active transport of ions in plant cells. Quart. Rev. Biophys. 3, 251–294 (1970).
Raven, J. A.: Ion transport in Hydrodictyon africanum. J. gen. Physiol. 50, 1607–1625 (1967a).
—: Light stimulation of active ion transport in Hydrodictyon africanum. J. gen. Physiol. 50, 1627–1640 (1967b).
—: The linkage of light-stimulated Cl influx to K and Na influxes in Hydrodictyon africanum. J. exp. Bot. 19, 233–253 (1968a).
—: The action of phlorizin on photosynthesis and light-stimulated ion transport in Hydrodictyon africanum. J. exp. Bot. 19, 712–723 (1968b).
—: Action spectra for photosynthesis and light-stimulated ion transport processes in Hydrodictyon africanum. New Phytologist 68, 45–62 (1969a).
—: Effects of inhibitors on photosynthesis and active influxes of K and Cl in Hydrodictyon africanum. New Phytologist 68, 1089–1113 (1969b).
—: The role of cyclic and pseudocyclic photophosphorylation in photosynthetic 14CO2 fixation in Hydrodictyon africanum. J. exp. Bot. 21, 1–16 (1970).
Raven, J. A.: Cyclic and non-cyclic photophosphorylation as energy sources for active K influx in Hydrodictyon africanum. J. exp. Bot. 22, in press (1971a).
Raven, J. A.: Inhibitor effects on photosynthesis, respiration and active ion transport in Hydrodictyon africanum. In preparation (1971b).
Raven, J. A., MacRobbie, E. A. C., Neumann, J.: The effect of Dio-9 on photosynthesis and ion transport in Nitella, Tolypella and Hydrodictyon. J. exp. Bot. 20, 221–235 (1969).
Slayman, C. L., Slayman, C. W.: Net uptake of potassium in Neurospora. Exchange for sodium and hydrogen ions. J. gen. Physiol. 52, 424–443 (1968).
Smith, F. A.: The control of Na uptake into Nitella translucens. J. exp. Bot. 18, 716–731 (1967).
—: Metabolic effects on ion fluxes in Tolypella intricata. J. exp. Bot. 19, 442–451 (1968).
Stolarek, J.: Ionic relations and electrophysiology of single cells of Characeae, part II. The effect of IAA on sodium and potassium influx in cells of Nitella translucens. Acta Soc. Bot. Polon. 37, 337–345 (1968).
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Raven, J.A. Ouabain-insensitive K influx in Hydrodictyon africanum . Planta 97, 28–38 (1971). https://doi.org/10.1007/BF00388403
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DOI: https://doi.org/10.1007/BF00388403