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Stable carbon isotopic Fractionations associated with inorganic carbon fixation by anaerobic ammonium-oxidizing bacteria

MPS-Authors
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Strous,  M.
Microbial Fitness Group, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Kuypers,  M. M. M.
Department of Biogeochemistry, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Schubert,  C. J.
Department of Biogeochemistry, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Strous4.pdf
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Citation

Schouten, S., Strous, M., Kuypers, M. M. M., Rijpstra, W. I. C., Baas, M., Schubert, C. J., et al. (2004). Stable carbon isotopic Fractionations associated with inorganic carbon fixation by anaerobic ammonium-oxidizing bacteria. Applied and Environmental Microbiology, 70(6), 3785-3788.


Cite as: http://hdl.handle.net/21.11116/0000-0001-D13E-E
Abstract
Isotopic analyses of Candidatus “Brocadia anammoxidans,” a chemolithoautotrophic bacterium that anaerobically oxidizes ammonium (anammox), show that it strongly fractionates against 13C; i.e., lipids are depleted by up to 47‰ versus CO2. Similar results were obtained for the anammox bacterium Candidatus “Scalindua sorokinii,” which thrives in the anoxic water column of the Black Sea, suggesting that different anammox bacteria use identical carbon fixation pathways, which may be either the Calvin cycle or the acetyl coenzyme A pathway.