NaCl range low

METPO:1000469 · CLASS · REVIEWED

A NaCl range phenotype in which the upper bound of growth-supporting NaCl concentration is at or below approximately 1% (w/v), characteristic of non-halophilic or halotolerant organisms.

NaCl-range-low non-halophile range

DOI-backed graph linking limited high-salt tolerance to a growth-supporting NaCl range capped at ~1% (w/v).

NaCl-range-low non-halophile range Interactive directed graph showing evidence-backed causal relationships for NaCl range low.

Edge evidence

  • limited high-salt tolerance produces NaCl range low METPO:2000202

    Limited tolerance to elevated NaCl caps growth at low salt.

    • DOI:10.1093/femsre/fuy009 salinity range Supports limited high-salt tolerance as the basis of a low NaCl range.
  • NaCl range low is a NaCl range rdfs:subClassOf

    NaCl range low is a quantitative bin of the NaCl-range phenotype.

    • DOI:10.1093/femsre/fuy009 salinity range Supports low NaCl range as a value within the NaCl-range distribution.
  • NaCl concentration causes hyperosmotic stress biolink:causes

    Increased external NaCl concentration causes hyperosmotic stress.

    • DOI:10.1093/femsml/uqad020 Hyperosmotic upshift elicits rapid K+ import as an emergency response; general bacterial osmotic-stress edge.
  • hyperosmotic stress induces compatible solute accumulation

    Hyperosmotic stress induces accumulation of compatible solutes.

    • DOI:10.1093/femsml/uqad020 After K+ import, cells synthesize or import compatible solutes and export K+ to reduce cytoplasmic ionic strength.
  • hypoosmotic shock opens mechanosensitive channels MscL/MscS

    Hypoosmotic shock opens mechanosensitive channels MscL/MscS to prevent rupture.

    • DOI:10.1093/femsml/uqad020 Hypoosmotic shock triggers transient opening of mechanosensitive channels (MscL/MscS) to prevent turgor-driven cell rupture; broad across bacteria.
  • cyclic di-AMP inhibits OpuA/OpuC compatible-solute importers RO:0002212

    c-di-AMP binds and inhibits OpuA/OpuC compatible-solute importers.

    • DOI:10.1128/mmbr.00181-23 c-di-AMP binds CBS-containing importers (OpuA/OpuC) and negatively regulates their transport activity.
  • choline uptake enables glycine betaine biosynthesis RO:0002327

    Choline uptake enables synthesis of glycine betaine, a key compatible solute.

    • DOI:10.1126/sciadv.ado6229 BetT mediates uptake of external choline used to synthesize glycine betaine, a key compatible solute in hyperosmotic environments.

Provenance

Source
METPO (2025-11-25)
Definition source
DOI:10.1093/femsre/fuy009

Parent traits (1)

Synonyms (3)

  • Halotolerant EXACT_SYNONYM · metpo.owl
  • Non-halophile EXACT_SYNONYM · metpo.owl
  • NaR_<=1 RELATED_SYNONYM · metpo.owl

kg-microbe context

Matched 1 kg-microbe node via direct_metpo.

  • METPO:1000469 [-3.957, -1.727, +0.312, +1.025, …]

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 limited high-salt tolerance to the non-halophile NaCl-range bin.

  3. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 2 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (METPO:2000202×1, rdfs:subClassOf×1).

  4. · ENRICH_CAUSAL_GRAPH · claude

    Added 5 evidence-backed generic edges (9 new nodes) from the deep-research report.

  5. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 3 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (biolink:causes×1, RO:0002212×1, RO:0002327×1).

  6. · GROUND_CAUSAL_NODES · claude

    Grounded 2 causal-node grounding field(s) via mappings/node_grounding.tsv (CHEBI:71578×1, GO:0031456×1).