identifier: traitmech:000198
label: chlorate respiration
definition: An anaerobic respiration in which an organism uses chlorate as the terminal
  electron acceptor and reduces it to chloride for energy conservation.
definition_source: DOI:10.1128/AEM.69.9.5585-5592.2003
trait_category: METABOLISM
term_kind: CLASS
mapping_status: PROPOSED
parent_traits:
- METPO:1000802
synonyms:
- synonym_text: dissimilatory chlorate reduction
  synonym_type: RELATED_SYNONYM
  source: DOI:10.1128/AEM.07303-11
evidence:
- reference: DOI:10.1128/AEM.69.9.5585-5592.2003
  snippet: chlorate ion as the sole electron acceptor for oxidation of organic matter
    in a previously unknown mode of respiration
  notes: Danielsson Thorell et al. support the organism-level respiratory use of chlorate
    as the electron acceptor.
- reference: DOI:10.1128/AEM.69.9.5585-5592.2003
  snippet: 'reduction of chlorate occurs in a two-step reaction: chlorate reduction
    followed by chlorite decomposition'
  notes: The Ideonella dechloratans chlorate pathway reduces chlorate and then decomposes
    the chlorite intermediate.
- reference: DOI:10.1128/AEM.07303-11
  snippet: Perchlorate-respiring bacteria (PRB) can use both perchlorate and chlorate
    as terminal electron acceptors, whereas chlorate-respiring bacteria (CRB) use
    only chlorate
  notes: Hellberg Lindqvist et al. separate chlorate-respiring bacteria from broader
    perchlorate reducers.
canonical_examples:
- taxon_id: NCBITaxon:36863
  taxon_label: Ideonella dechloratans
  note: Chlorate-respiring bacterium assayed anaerobically with acetate as electron
    donor and sodium chlorate as electron acceptor.
  reference: DOI:10.1128/AEM.07303-11
discussions:
- discussion_id: chlorate-respiration-xref-gap
  prompt: Resolve an exact external ontology class for organism-level chlorate respiration
    before adding a TraitRecord xref.
  kind: CURATION_TODO
  status: OPEN
  rationale: The pinned METPO snapshot contains only the obsolete broad (Per)chlorate
    respiration class and no active exact organism-level chlorate respiration class.
    Candidate EC, Rhea, and protein-family terms for chlorate reductase or chlorite
    dismutase are narrower than the whole-organism anaerobic respiration phenotype.
  posed_by: codex
  posed_date: '2026-09-15'
curation_history:
- timestamp: '2026-09-15T01:28:00Z'
  curator: codex
  action: MINTED_TRAITMECH_ID
  changes: Minted chlorate respiration as a DOI-backed anaerobic respiration TraitRecord
    with a related synonym after a repository-wide duplicate review covering ignored
    and hidden files; the local METPO snapshot has only an obsolete broad (Per)chlorate
    respiration class and the replacement placeholder is reserved in proposals/metpo_traitmech_v75.
  llm_assisted: true