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[扁卷螺软体动物神经元的离子膜选择性]

[Ionic membrane selectivity of Planorbarius corneus mollusk neurons].

作者信息

Skul'skiĭ I A, Malov A M

出版信息

Zh Evol Biokhim Fiziol. 1977 Sep-Oct;13(5):635-7.

PMID:919907
Abstract

In electrophysiological investigations, relative permeabilities of somatic neuronal membrane in the winkle for K+, Rb+ and Tl+ have been obtained which made it possible to establish the selectivity row for this membrane. This row in principle coincides with similar rows for the membranes of other excitable formations. The difference lies in higher permeability of the membrane investigated for sodium. Permeability coefficients for K+, Rb+, Tl+ and Na+ in this membrane were also determined. In marine molluscs, sodium and potassium permeabilities of the membranes are lower than in fresh-water or terrestrial ones.

摘要

在电生理研究中,已得出滨螺体神经元膜对K⁺、Rb⁺和Tl⁺的相对渗透率,这使得确定该膜的选择性序列成为可能。该序列原则上与其他可兴奋结构膜的类似序列一致。不同之处在于所研究的膜对钠的渗透率更高。还测定了该膜中K⁺、Rb⁺、Tl⁺和Na⁺的渗透系数。在海洋软体动物中,膜的钠和钾渗透率低于淡水或陆生软体动物。

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1
[Ionic membrane selectivity of Planorbarius corneus mollusk neurons].[扁卷螺软体动物神经元的离子膜选择性]
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2
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