Abstract
The strict anaerobe Desulfuromonas acetoxidans can oxidize acetate to CO2 with elemental sulfur as electron acceptor. 14C-labelling experiments and enzyme studies are described revealing that acetate oxidation proceeds via the citric acid cycle with the synthesis of oxaloacetate from acetate and 2 CO2 via pyruvate as anaplerotic reaction. An oxidation of acetate via one carbon unit intermediates as proposed for anaerobic bacteria fermenting acetate to 2 CO2 and 4 H2 was excluded.
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Dedicated to Professor Dr. Gerhart Drews on the occasion of his 60th birthday
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Gebhardt, N.A., Thauer, R.K., Linder, D. et al. Mechanism of acetate oxidation to CO2 with elemental sulfur in Desulfuromonas acetoxidans . Arch. Microbiol. 141, 392–398 (1985). https://doi.org/10.1007/BF00428855
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DOI: https://doi.org/10.1007/BF00428855