Resting membrane potential and action potential of Nitella expansa protoplasts [algae]

Inside negative membrane potentials were observed for protoplasts obtained from Nitella expansa leaf internodal cells in media containing 1 to 100 mM CaCl2 using the microelectrode technique. The potential values were less negative than the membrane potential of intact N. expansa leaf internodal cel...

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Bibliographic Details
Published in:Plant and cell physiology 1980-06, Vol.21 (4), p.537-546
Main Authors: Abe, S, Takeda, J, Senda, M. (Kyoto Univ. (Japan). Coll. of Agriculture)
Format: Article
Language:English
Subjects:
Action potential
Calcium effect
Membrane potential
Nitella expansa
Protoplasts
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Summary:Inside negative membrane potentials were observed for protoplasts obtained from Nitella expansa leaf internodal cells in media containing 1 to 100 mM CaCl2 using the microelectrode technique. The potential values were less negative than the membrane potential of intact N. expansa leaf internodal cells. In addition, an action potential consisting of two components—a fast component and a slow component—was induced by electrical stimulation for the protoplasts as well as the intact cells.
ISSN:0032-0781
1471-9053
DOI:10.1093/oxfordjournals.pcp.a076029