Archaea catalyze iron-dependent anaerobic oxidation of methane.

  title={Archaea catalyze iron-dependent anaerobic oxidation of methane.},
  author={Katharina Friederike Ettwig and Baoli Zhu and Daan R Speth and J. T. M. Keltjens and Mike S. M. Jetten and Boran Kartal},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={113 45},
Anaerobic oxidation of methane (AOM) is crucial for controlling the emission of this potent greenhouse gas to the atmosphere. Nitrite-, nitrate-, and sulfate-dependent methane oxidation is well-documented, but AOM coupled to the reduction of oxidized metals has so far been demonstrated only in environmental samples. Here, using a freshwater enrichment culture, we show that archaea of the order Methanosarcinales, related to "Candidatus Methanoperedens nitroreducens," couple the reduction of… CONTINUE READING
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