A theory of self-organization of an excitable membrane formed on the protoplasmic droplet isolated from Nitella

Yoji Aizawa, Yonosuke Kobatake

    研究成果: Article

    3 引用 (Scopus)

    抄録

    The process of self-organization of an excitable membrane of protoplasmic droplet of Nitella is studied theoretically by taking the interaction of the local electric current caused by the spatially non-uniform distribution of active domains into account. The theoretical model employed is that the surface membrane forms a mosaic structure composed of lipids and protein molecules, and that each element of the mosaic structure (domain) on the membrane has two distinct conformations corresponding to excited and resting states. The molecules constituting the membrane are derived from the inside of the protoplasm by diffusion. The excitability of the surface membrane appears suddenly after a morphogenetic structure of the membrane is formed with time on the surface of droplet. Time courses of the variation in membrane potential and in membrane resistance are calculated, and the results are compared with experimental data obtained with the protoplasmic droplet of Nitella.

    元の言語English
    ページ(範囲)393-399
    ページ数7
    ジャーナルJournal of Theoretical Biology
    60
    発行部数2
    DOI
    出版物ステータスPublished - 1976 8 7

    Fingerprint

    Nitella
    Self-organization
    Droplet
    droplets
    Membrane
    Membranes
    electric current
    membrane potential
    Molecules
    Excitability
    lipids
    Membrane Potential
    Electric Current
    Lipids
    Conformation
    Membrane Potentials
    Electric currents
    Theoretical Model
    proteins
    Cytoplasm

    ASJC Scopus subject areas

    • Agricultural and Biological Sciences(all)

    これを引用

    A theory of self-organization of an excitable membrane formed on the protoplasmic droplet isolated from Nitella. / Aizawa, Yoji; Kobatake, Yonosuke.

    :: Journal of Theoretical Biology, 巻 60, 番号 2, 07.08.1976, p. 393-399.

    研究成果: Article

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