identifier: traitmech:000204
label: organohalide respiration
definition: An anaerobic respiration in which an organism uses an organohalide as
  the terminal electron acceptor for energy conservation.
definition_source: DOI:10.1098/rstb.2012.0322
trait_category: METABOLISM
term_kind: CLASS
mapping_status: PROPOSED
parent_traits:
- METPO:1000802
evidence:
- reference: DOI:10.1098/rstb.2012.0322
  snippet: Organohalide respiration is an anaerobic bacterial respiratory process
    that uses halogenated hydrocarbons as terminal electron acceptors during electron
    transport-based energy conservation.
  notes: Hug et al. define organohalide respiration as anaerobic electron-transport-based
    energy conservation with halogenated hydrocarbons as terminal electron acceptors.
- reference: DOI:10.1098/rstb.2012.0322
  snippet: Organohalide-respiring bacteria have been identified from multiple bacterial
    phyla
  notes: Hug et al. support the record as a reusable bacterial respiration phenotype
    rather than a single-strain label.
- reference: DOI:10.1126/science.276.5318.1568
  snippet: Growth of strain 195 with H2 and tetrachloroethene as the electron donor
    and acceptor pair required extracts from mixed microbial cultures.
  notes: Maymo-Gatell et al. support tetrachloroethene as a growth-coupled organohalide
    electron acceptor in Dehalococcoides mccartyi strain 195.
canonical_examples:
- taxon_id: NCBITaxon:243164
  taxon_label: Dehalococcoides mccartyi 195
  note: Strain 195 grows by coupling H2 oxidation to tetrachloroethene reduction,
    establishing growth-coupled organohalide respiration.
  reference: DOI:10.1126/science.276.5318.1568
discussions:
- discussion_id: organohalide-respiration-xref-gap
  prompt: Resolve an exact external ontology class for organism-level organohalide
    respiration before adding a TraitRecord xref.
  kind: CURATION_TODO
  status: OPEN
  rationale: The pinned METPO snapshot contains only obsolete Halogenated compound
    respiration and Organohalide respiration classes. Candidate reductive dehalogenase
    protein-family and enzyme terms are narrower than the whole-organism anaerobic
    respiration phenotype.
  posed_by: codex
  posed_date: '2026-09-15'
curation_history:
- timestamp: '2026-09-15T04:25:36Z'
  curator: codex
  action: MINTED_TRAITMECH_ID
  changes: Minted organohalide respiration as a DOI-backed anaerobic respiration TraitRecord
    after a repository-wide duplicate review covering ignored and hidden files; the
    local METPO snapshot has only obsolete organohalide/halogenated-compound respiration
    classes and the replacement placeholder is reserved in proposals/metpo_traitmech_v81.
  llm_assisted: true