Spontaneous Membrane Potential Changes Associated With the Zooid and Vacuolar Contractions In Vorticella Convallaria |
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| Authors: | HISASHI SHIONO RITSUO HARA HIROSHI ASAI |
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| Institution: | Department of Physics, Waseda University, Okubo, Shinjuku-ku Tokyo 160, Japan |
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| Abstract: | SYNOPSIS Interacellular membrane potential and spontaneous changes associated with motile responses in the zooid of Vorticella convallaria Linnaeus were recorded by conventional electrophysiological technics. an all-or-none large transient depolarization (large pulse) occurs in association with a spontaneous contraction of the zooid. A small transient potential change (small pulse) was observed in association with periodic contraction of the contractile vacuole. |
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| Keywords: | Vorticella convallaria membrane potential change contraction zooid contractile vacuole |
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