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anaerobic ammonium oxidation

traitmech:000188 · CLASS · PROPOSED

An anaerobic nitrogen metabolism in which ammonium is oxidized with nitrite as the electron acceptor to form dinitrogen.

Trait evidence (3)

  • DOI:10.1038/22749
    This new process combines ammonia and nitrite directly into dinitrogen gas

    Strous et al. identified the anaerobic ammonia oxidation process and linked ammonia plus nitrite conversion to dinitrogen formation.

  • DOI:10.1128/AEM.65.7.3248-3250.1999
    The affinity constants for the substrates ammonium and nitrite were each less than 0.1 mg of nitrogen per liter.

    Strous et al. measured ammonium and nitrite as high-affinity anammox substrates.

  • DOI:10.1038/nature10453
    anammox converts ammonia and nitrite into dinitrogen (N2) gas

    Kartal et al. review the pathway scope and support anammox as the established exact synonym.

Provenance

Identifier source
TraitMech local identifier
Definition source
DOI:10.1038/22749

Parent traits (1)

Synonyms (2)

  • anammox EXACT_SYNONYM · DOI:10.1038/22749
  • anaerobic ammonia oxidation RELATED_SYNONYM · DOI:10.1038/22749

kg-microbe context

No kg-microbe node embedding matched this record in the 2026-04-25 deepwalk.

Discussions and Knowledge Gaps (1)

Open questions attached to this trait. Seeded by just knowledge-gap-scan and curated; see the corpus-wide index.

Resolve an exact external ontology class for anaerobic ammonium oxidation before adding a TraitRecord xref.

CURATION TODO OPEN anaerobic-ammonium-oxidation-xref-gap · raised by codex · 2026-09-14

Not yet attached to a section of this record — a curator sets attaches_to (e.g. causal_graphs#some_edge) so the gap shows beside the mechanism it concerns.

The pinned METPO snapshot contains only METPO:1000812 obsolete Anaerobic ammonium oxidation. Candidate GO classes should be checked against the primary Gene Ontology release before adding an exact xref because component ammonium- or nitrite-oxidation processes are narrower than the whole anammox metabolism.

Curation history

  1. · MINTED_TRAITMECH_ID · codex

    Minted anaerobic ammonium oxidation as a DOI-backed nitrogen respiration TraitRecord after a repository-wide duplicate review covering ignored and hidden files; the local METPO snapshot has only obsolete anammox classes and the replacement placeholder is reserved in proposals/metpo_traitmech_v65.