identifier: traitmech:000707
label: cue-triggered environmental anticipation
definition: A physiological phenotype in which exposure to an environmental cue induces
  changes that prepare a microorganism for a distinct, temporally associated environmental
  condition before that condition occurs.
definition_source: DOI:10.1038/nature08112
trait_category: PHYSIOLOGY
term_kind: CLASS
mapping_status: PROPOSED
parent_traits:
- METPO:1000059
evidence:
- reference: DOI:10.1038/nature08112
  snippet: early stimuli pre-induce genes that would be needed for later ones, yet
    later stimuli only induce genes needed to cope with them.
  notes: Mitchell et al. 2009, PMID:19536156; scientific abstract, checked against
    publisher and source-qualified MED text. Main Figures 2-3 and supplementary Figures
    3 and 6 were visually inspected, with their relevant Methods and control explanations.
    MG1655 sugar-switch assays distinguish early induction from subsequent growth;
    glycerol normalization and residual-sugar controls matter. Loss of the association
    in laboratory-evolved strains concerns selection across generations, not cognitive
    learning. Ecological explanations remain author interpretations. Not all raw data
    were reanalyzed.
- reference: DOI:10.1038/nmicrobiol.2017.84
  snippet: Here, we identify a metabolic adaptation that is triggered upon entry into
    hypoxia-induced quiescence but facilitates subsequent cell cycle re-entry.
  notes: Eoh et al. 2017, PMID:28530656, PMC5540153; scientific abstract, checked
    against publisher and source-qualified MED text. The abstract and qualitative
    main-text framing support metabolically encoded preparation, with hypoxia preceding
    re-aeration in the studied Mycobacterium tuberculosis system. This is not evidence
    for a universal transcriptional mechanism or an in-vivo demonstration of anticipation.
    Figures, supplements and raw data were not independently assessed; no molecular
    causal edges are asserted.
discussions:
- discussion_id: anticipation-scope-and-hierarchy
  prompt: Retain cue-dependent preparation without conflating neighboring temporal-response
    traits.
  kind: CURATION_TODO
  status: OPEN
  rationale: 'The cue-triggered qualifier is deliberate: solely clock-driven preparation
    or constitutive readiness is insufficient. Evidence must link the preceding cue
    to preparation for a different later condition; correlated expression or cross-protection
    alone does not establish that interpretation. Generic stress response, stochastic
    bet hedging, carbon-source memory and diauxic growth are not exact synonyms, although
    particular observations can overlap. Neither cognition nor learning within an
    individual''s lifetime is required; evolutionary regulatory wiring is compatible.
    No universal benefit, fixed delay, asymmetric response or single mechanism is
    required. METPO:1000731 nutrient adaptation is locally framed as chronic copiotroph/oligotroph
    trophic adaptation, not this cue-to-future-condition phenotype. METPO:1000059
    phenotype is the conservative parent pending upstream hierarchy review. This is
    an organismal disposition, not a sequence feature, regulatory site or precomposed
    chemical-use assertion.'
  posed_by: codex
  posed_date: '2026-10-12'
- discussion_id: anticipation-evidence-and-mechanism-limits
  prompt: Resolve assay-specific mechanisms, natural strain provenance and broader
    terminology before extending the record.
  kind: KNOWLEDGE_GAP
  status: OPEN
  rationale: 'No canonical_examples, causal_graphs, exact synonyms or xrefs are asserted.
    The studies do not establish a uniform species-wide phenotype or a common protein
    mechanism; strain provenance and authority-resolved taxa require further review.
    Source-qualified MED, Crossref and visible publisher notice links were checked
    on 2026-10-12; their commentary/review links are not corrections or independent
    experiments. No correction or retraction was exposed for the two retained papers
    in these bounded checks. The separate Tagkopoulos 2008 lead (DOI:10.1126/science.1154456)
    is not counted evidence: its main PMC text was readable, but the indexed 9 June
    2008 supplement correction could not be directly inspected. Broad environmental
    anticipation and adaptive prediction are not assumed exactly equivalent to this
    qualified class. No exact candidate was found in the pinned/current METPO RDF
    and ignored/hidden novelty searches; the pinned ontology remains unchanged.'
  posed_by: codex
  posed_date: '2026-10-12'
curation_history:
- timestamp: '2026-10-12T05:07:15Z'
  curator: codex
  action: MINTED_TRAITMECH_ID
  changes: Added cue-triggered environmental anticipation with two primary DOI-backed
    sources and directly checked scientific-abstract snippets. Reserved 000707, v583
    and 1066000-1066099 after ignored/hidden worktree and pending-PR checks. Scope,
    mechanism, provenance and source-access limits are explicit. Existing traits unchanged;
    timestamp is the observed UTC curation decision.
  llm_assisted: true