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Science 8 June 1979:
Vol. 204. no. 4397, pp. 1100 - 1103
DOI: 10.1126/science.572085
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Articles

Science, Vol 204, Issue 4397, 1100-1103
Copyright © 1979 by American Association for the Advancement of Science

articles

Membrane potential changes during chemokinesis in Paramecium

J Van Houten

Intracellular recordings show that (i) paramecia hyperpolarize slightly in attractants and depolarize in repellents that depend on the avoiding reaction (an abrupt change of swimming direction), and (ii) paramecia more strongly hyperpolarize in repellents and more strongly depolarize in attractants that depend on changes of swimming velocity. These membrane potential changes are in agreement with a hypothesis of membrane potential control of chemokinesis in Paramecium.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)