identifier: METPO:1007082
label: urease test
definition: A biochemical test that detects urease enzyme activity by observing urea
  hydrolysis (typically via a pH-indicator color change). The test outcome (positive
  or negative) is captured by its child classes; this class itself does not assert
  urease activity.
trait_category: OTHER
term_kind: CLASS
mapping_status: SEEDED
parent_traits:
- METPO:1000059
synonyms:
- synonym_text: urea hydrolysis test
  synonym_type: EXACT_SYNONYM
  source: metpo.owl
- synonym_text: urease activity test
  synonym_type: EXACT_SYNONYM
  source: metpo.owl
created_by: Marcin Joachimiak
curation_history:
- timestamp: '2026-09-11T14:52:53Z'
  curator: seed_from_metpo
  action: SEEDED_FROM_METPO
  changes: imported from data/raw/metpo.owl (CLASS)
- timestamp: '2026-09-11T14:53:47Z'
  curator: codex
  action: ENRICHED_FROM_LITERATURE
  changes: Enriched the seeded METPO urease test with OMP definition provenance plus
    DOI-backed urea-hydrolysis and pH-indicator evidence after a repository-wide duplicate
    review covering ignored and hidden files.
  llm_assisted: true
definition_source: http://purl.obolibrary.org/obo/OMP_0000222
evidence:
- reference: DOI:10.5812/chbs-160199
  snippet: Urea is classified as a diamide, and certain bacteria possessing the enzyme
    urease are capable of utilizing urea to generate ammonia, carbon dioxide, and
    water
  notes: Hafezi and Khamar describe the urease-test chemistry linking bacterial urease
    to urea conversion into alkaline products.
- reference: DOI:10.5812/chbs-160199
  snippet: Both types contain a phenol red reagent that changes color with pH variations
  notes: The review describes phenol red as the pH indicator for both liquid and solid
    urease-test media.