Ionophore-Mediated Calcium Entry Induces Mussel Gill Ciliary Arrest
- 7 November 1975
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 190 (4214), 586-588
- https://doi.org/10.1126/science.1103290
Abstract
Lateral cilia of freshwater mussel gills, which normally beat with metachronal rhythm, are arrested pointing frontally by perfusion with 6.25 to 12.5 millimolar calcium and 10(-5) molar A23187, a calcium ionophore. Arrest does not occur in either calcium or ionophore and monovalent cations alone. Activity returns with continued perfusion in potassium chloride or calcium chloride, and more slowly in sodium chloride, after removal of ionophore. These results support the hypothesis that a local rise in internal calcium causes ciliary arrest.Keywords
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