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. 2014 Dec 22;4(1):1–11. doi: 10.1002/mbo3.232

Table 3.

Comparisons between the three processes of AOM: S-DAMO, N-DAMO, and M-DAMO

Features S-DAMO N-DAMO M-DAMO
Habitat Marine environments and freshwater environments Freshwater environments Marine environments
Mechanism hypothesis Reverse methanogenesis, acetogenesis, and methylogenesis Aerobic methane oxidation and reverse methanogenesis ND
Electron acceptor Inline graphic Inline graphic Mn4+ and Fe3+
Responsible microbes ANME M. oxyfera and M. nitroreducens MBGD (possible)
Reaction (AOM) Inline graphic (eq. 3) Inline graphic (eq. 12) and Inline graphic (eq. 14) and
Inline graphic (eq. 13) Inline graphic (eq. 15)

S-DAMO, sulfate-dependent anaerobic methane oxidation; N-DAMO, nitrate/nitrite-dependent anaerobic methane oxidation; M-DAMO, metal ion (Mn4+ and Fe3+)-dependent anaerobic methane oxidation; ANME, anaerobic methanotrophic archaea; M. oxyfera, Candidatus Methylomirabilis oxyfera; M. nitroreducens, Candidatus Methanoperedens nitroreducens; MBGD, marine benthic group D; ND, not determined; AOM, anaerobic oxidation of methane.