identifier: traitmech:000131
label: dark hydrogen oxidation
definition: A metabolism in which an organism oxidizes molecular hydrogen as an electron
  donor for energy conservation independently of light.
definition_source: DOI:10.1126/science.aaf4507
trait_category: METABOLISM
term_kind: CLASS
mapping_status: PROPOSED
parent_traits:
- METPO:1000060
synonyms:
- synonym_text: dark_hydrogen_oxidation
  synonym_type: RELATED_SYNONYM
  source: DOI:10.1126/science.aaf4507
evidence:
- reference: DOI:10.3389/fmicb.2018.02873
  snippet: hydrogen-oxidizing organisms play a key role in deep-sea hydrothermal vent
    ecosystems as they can be considerably involved in light-independent primary biomass
    production
  notes: Adam and Perner review hydrogen oxidation in deep-sea hydrothermal vents
    as a light-independent microbial energy metabolism.
curation_history:
- timestamp: '2026-09-08T00:00:00Z'
  curator: codex
  action: PROPOSED_FROM_RESEARCH
  changes: Proposed a DOI-backed FAPROTAX metabolic capability from proposals/metpo_traitmech_v11
    after repository-wide duplicate review.
  llm_assisted: true