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Science 20 November 1959:
Vol. 130. no. 3386, pp. 1409 - 1410
DOI: 10.1126/science.130.3386.1409
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Articles

Carbon Dioxide Fixation in Marine Invertebrates: A Survey of Major Phyla

CARL S. HAMMEN 1 and PAUL J. OSBORNE 1

1 Duke University Marine Laboratory, Beaufort, North Carolina

Fourteen species of marine invertebrates representing 12 phyla were kept in sea water containing NaHC14O2 for 1 hour. All of them fixed CO2 into acids of the Krebs citric acid cycle. In most species the major portion of the radioactivity recovered after chromatography was in succinic, fumaric, and malic acids. The findings favor the hypothesis that both CO2 fixation and the citric acid cycle are virtually universal among marine invertebrates.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Invertebrate and vertebrate pathways of anaerobic metabolism: evolutionary considerations.
D. R. Livingstone (1983)
Journal of the Geological Society 140, 27-37
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Science. ISSN 0036-8075 (print), 1095-9203 (online)