Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1971 Sep;5(3):250-60.
doi: 10.1007/BF01870553.

Spontaneous and induced changes in the membrane potential and resistance ofAcetabularia mediterranea

H D Saddler  1
Affiliations

Spontaneous and induced changes in the membrane potential and resistance ofAcetabularia mediterranea

H D Saddler. J Membr Biol. 1971 Sep.

Abstract

The normal resting potential across theAcetabularia mediterranea cell membrane is -170 mV and the resistance is about 0.1 kΩ·cm(2). The time courses of potential and resistance changes have been studied in connection with several slow dynamic properties of the membrane. These effects include spontaneous and stimulated depolarizing spikes, spontaneous repolarization after prolonged maintenance of a quasistable depolarized condition, and a hyperpolarizing response when current is applied to the cell in this depolarized state. These processes show considerable similarities to each other, which suggests that they might all be explained by changes in permeability to Cl(-). In normal conditions, membrane punch-through occurs with a relatively small hyperpolarizing bias.

PubMed Disclaimer

References

    1. J Physiol. 1958 Dec 30;144(3):505-24 - PubMed
    1. Acta Physiol Scand. 1967 Jan-Feb;69(1):51-68 - PubMed
    1. Biophys J. 1969 May;9(5):700-28 - PubMed
    1. Planta. 1966 Jun;71(2):184-8 - PubMed
    1. Biophys J. 1968 Jan;8(1):145-7 - PubMed