cell width very small

METPO:1000887 · CLASS · REVIEWED

A cell-width phenotype in which the shorter cell dimension is at most approximately 0.5 micrometers.

Very-narrow cell width by streamlining

DOI-backed graph linking nutrient streamlining to a very-narrow rod radius (≤0.5 μm).

Very-narrow cell width by streamlining Interactive directed graph showing evidence-backed causal relationships for cell width very small.

Edge evidence

  • oligotrophic environment regulates streamlining selection RO:0002211

    Persistent oligotrophy selects for streamlined narrow cells.

    • DOI:10.1038/ismej.2014.60 small cells and genomes Supports oligotrophic regimes as drivers of cell-width reduction.
  • streamlining selection produces cell width very small METPO:2000202

    Streamlining selection produces very narrow rods.

    • DOI:10.1038/ismej.2014.60 small cells Supports very narrow width as an outcome of streamlining selection.
  • cell width very small is a cell width rdfs:subClassOf

    Very small cell width is a quantitative bin of the cell-width phenotype.

    • DOI:10.1146/annurev-cellbio-101011-155745 MreB-directed peptidoglycan synthesis Supports very narrow width as a value within the regulated cell-width distribution.
  • high surface-to-volume ratio increases nutrient uptake efficiency RO:0002213

    High surface-to-volume ratio of narrow cells improves nutrient uptake efficiency.

    • DOI:10.31951/2658-3518-2024-a-4-795 Thanks to their high surface-to-volume ratio, small-cell bacteria absorb nutrients most efficiently.
  • small-cell bacteria adapted to oligotrophic waters

    Small-cell bacteria with very narrow widths are adapted to oligotrophic waters.

    • DOI:10.31951/2658-3518-2024-a-4-795 Especially important in oligotrophic water bodies with low organic matter concentrations.
  • reduced genome size associated with streamlining selection biolink:associated_with

    Reduced genome size is associated with streamlining in oligotrophic lineages.

    • DOI:10.1128/mmbr.00124-22 Many microbial cell lineages in nature share with oligotrophs the property of reduced genome size.
  • Rod complex decreases cell width RO:0002212

    Rod-complex-mediated organized circumferential PG insertion reduces cell width (rod-shaped bacteria).

    • DOI:10.1128/msystems.01017-21 Rod complex-mediated organized circumferential insertion of PG strands reduces cell diameter; may generalize to rod-shaped bacteria.
  • class A penicillin-binding proteins increases cell width RO:0002213

    aPBP-mediated isotropic PG insertion enlarges the cell cylinder, increasing width.

    • DOI:10.1128/msystems.01017-21 aPBP-mediated isotropic insertion enlarges the cell cylinder; defines opposite regulation of width.

Provenance

Source
METPO (2025-11-25)
Definition source
DOI:10.1038/ismej.2014.60

Parent traits (1)

Synonyms (1)

  • W_<=0.5 RELATED_SYNONYM · metpo.owl

kg-microbe context

Matched 1 kg-microbe node via direct_metpo.

  • METPO:1000887 [-0.349, -0.753, -1.789, +1.274, …]

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 causal graph linking oligotrophic streamlining selection to very narrow cell width (≤0.5 μm).

  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. · RENAME_PREDICATE_LABELS · claude

    Renamed 1 causal-edge predicate label(s) to align with existing groundings: drives → regulates ×1.

  5. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 1 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (RO:0002211×1).

  6. · ENRICH_CAUSAL_GRAPH · claude

    Added 5 evidence-backed generic edges (7 new nodes) from the deep-research report.

  7. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 4 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (RO:0002213×2, biolink:associated_with×1, RO:0002212×1).