temperature range low

METPO:1000449 · CLASS · REVIEWED

A temperature range phenotype in which the growth-supporting ambient temperature range spans approximately 10–22 °C, characteristic of psychrophilic or psychrotolerant physiology.

Temperature-range-low psychrotolerant range

DOI-backed graph linking psychrotolerant adaptation to a temperature growth range of approximately 10–22 °C.

Temperature-range-low psychrotolerant range Interactive directed graph showing evidence-backed causal relationships for temperature range low.

Edge evidence

  • psychrotolerant adaptation enables temperature range low RO:0002327

    Psychrotolerant adaptation enables growth across 10–22 °C.

    • DOI:10.1038/sj.embor.7400662 Cold-shock proteins have also been described Supports cold-shock and acclimation responses as the cool-range mechanism.
  • temperature range low is a temperature range rdfs:subClassOf

    Temperature range low is a quantitative bin of the temperature-range phenotype.

    • DOI:10.1038/sj.embor.7400662 growing well at temperatures around the freezing point of water Supports the 10–22 °C range as a value within the temperature-range distribution.
  • low temperature decreases membrane fluidity RO:0002212

    Low temperature reduces membrane fluidity, triggering compensatory lipid remodeling.

    • DOI:10.1007/s42770-023-01057-4 Cold reduces membrane fluidity; changes in membrane physical state mediate cold sensing.
  • fatty acid desaturase activity increases membrane fluidity RO:0002213

    Fatty acid desaturase activity raises unsaturation to restore membrane fluidity at low temperature.

    • DOI:10.37256/amtt.5220244537 Genes for desaturation are upregulated; desaturases enhance membrane fluidity via unsaturated/PUFA synthesis.
  • low temperature increases unsaturated fatty acid proportion RO:0002213

    Growth at low temperature increases the proportion of unsaturated fatty acids in membrane lipids.

    • DOI:10.1128/aem.01928-22 Proportion of unsaturated fatty acids was higher in strains cultured at low temperatures while long-chain SFAs decreased.
  • cold-shock proteins enables RNA chaperone activity RO:0002327

    Cold-shock proteins act as RNA chaperones supporting translation at low temperature.

    • DOI:10.3389/fmicb.2023.1197797 Cold shock proteins (Csps) can function as RNA chaperones, supporting translation in the cold.
  • compatible solutes provides cryoprotection

    Compatible solutes provide cryoprotection by stabilizing membranes and proteins and lowering freezing point.

    • DOI:10.3389/fmicb.2023.1197797 Compatible osmolytes prevent cell shrinkage, lower freezing point, scavenge radicals, and stabilize membranes/proteins.
  • GroEL/DnaK molecular chaperones prevents protein misfolding RO:0002212

    GroEL/DnaK chaperones prevent cold-denaturation and protein misfolding at low temperature.

    • DOI:10.37256/amtt.5220244537 Chaperones are upregulated at low temperatures to prevent cold-denaturation and misfolding.

Provenance

Source
METPO (2025-11-25)
Definition source
DOI:10.1038/sj.embor.7400662

Synonyms (3)

  • Psychrophile EXACT_SYNONYM · metpo.owl
  • Psychrotolerant EXACT_SYNONYM · metpo.owl
  • TR_10_to_22 RELATED_SYNONYM · metpo.owl

kg-microbe context

Matched 1 kg-microbe node via direct_metpo.

  • METPO:1000449 [-2.321, -1.131, -2.283, +3.294, …]

512-dim DeepWalkSkipGramEnsmallen embedding from kg-microbe (2026-04-25).

Nearest neighbors in embedding space

Top-8 cosine-similar METPO traits from the 2026-04-25 deepwalk (512-D).

Curation history

  1. · SEEDED_FROM_METPO · seed_from_metpo

    imported from data/raw/metpo.owl (CLASS)

  2. · CURATED_CAUSAL_GRAPH · claude

    Added DOI-backed definition and causal graph linking psychrotolerant adaptation to the temperature-range-low bin.

  3. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 2 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (RO:0002327×1, rdfs:subClassOf×1).

  4. · ENRICH_CAUSAL_GRAPH · claude

    Added 6 evidence-backed generic edges (10 new nodes) from the deep-research report.

  5. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 5 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (RO:0002212×2, RO:0002213×2, RO:0002327×1).

  6. · GROUND_CAUSAL_NODES · claude

    Grounded 3 causal-node grounding field(s) via mappings/node_grounding.tsv (PATO:0001306×1, METPO:1007505×1, CHEBI:25728×1).