Action potentials inAcetabularia: Measurement and simulation of voltage-gated fluxes

  title={Action potentials inAcetabularia: Measurement and simulation of voltage-gated fluxes},
  author={H. Mummert and D. Gradmann},
  journal={The Journal of Membrane Biology},
  • H. Mummert, D. Gradmann
  • Published 2005
  • Chemistry, Medicine
  • The Journal of Membrane Biology
  • SummaryAmounts and temporal changes of the release of the tracer ions K+ (86Rb+),22Na+, and36Cl− as well as of H+ in the course of action potentials inAcetabularia have been recorded. New results and model calculations confirm in quantitative terms the involvement of three major ion transport systemsX in the plasmalemma: Cl− pumps, K+ channels, and Cl− channels (which are marked in the following by the prefixes,P, K andC) with their equilibrium voltagesXVe and voltage/time-dependent… CONTINUE READING

    Figures and Topics from this paper.

    Simulation of Variation Potential in Higher Plant Cells
    • 33
    A Mathematical Model of Action Potential in Cells of Vascular Plants
    • 53
    Light-induced modification of plant plasma membrane ion transport.
    • 27
    Mathematical Models of Electrical Activity in Plants
    • 23
    • Highly Influenced


    Publications referenced by this paper.
    Slow kinetics of a potassium channel inAcetabularia
    • 12
    “Metabolic” action potentials inAcetabularia
    • 30
    Current-voltage relationships of potassium channels in the plasmalemma ofAcetabularia
    • 21
    Voltage dependent potassium fluxes and the significance of action potentials in Acetabularia.
    • 34
    Ion fluxes inAcetabularia: Vesicular shuttle
    • 4
    Analog circuit of theAcetabularia membrane
    • 8
    Cl $^-$ Channels in Chara [and Discussion]
    • 22
    Efflux of Chloride Ions during the Action Potential of Nitella
    • 76