Tunicate Eggs Utilize Ammonium Ions for Flotation
- 7 April 1978
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 200 (4337) , 64-65
- https://doi.org/10.1126/science.200.4337.64
Abstract
Unlike most solitary ascidians, Corella willmeriana retains its eggs and embryos well past hatching. The early stages float to the top of the enlarged atrium from which they cannot escape. Ammonium ions replace other more dense substances in the cell sap of the float cells surrounding the embryo. Energy derived from glycolysis but not mitochondrial processes supports this process.Keywords
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