Elusimicrobium minutum

Bacteria
General | Carbohydrate O/F | Substrate utilisation | Enzymes | Metabolites | Antibiotics

Overview

  • Elusimicrobium minutum is a Gram-negative, non-spore-forming, strictly anaerobic, non-motile, pleiomorph rod-shaped bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. Elusimicrobium minutum is likely to be transient and not a long-term gut coloniser. (Geissinger2009)



  • This organism has been recovered from termite gut. Pathogenicity status unknown, or very unlikely to be pathogenic. A possible gut commensal.
    • QUIRKS
  • Produces alanine as a metabolic endpoint. Doesn't grow at 37C so probably not a coloniser of the gut.
    • GENERAL CHARACTERISTICS (Geissinger2009);
    Character Response
  • pH
  • Acidity tolerance:
  • tolerates pH 6.5; tolerates pH 8.5; Grows optimally at pH 7.5.
  • 🌡
  • Temperature tolerance:
  • grows at 20℃; grows at 32℃; Grows optimally at 30℃.
  • H+
  • Acid from carbohydrates usually produced:
  • fructose; galactose; glucose; N-Ac glucosamine;
  • ⥅
  • Substrates assimilated or utilised:
  • Casamino acids;
    • SPECIAL FEATURES (Geissinger2009);
    Character Response
  • ✓
  • Metabolites produced:
  • acetate; lactate; ethanol; Hâ‚‚;
  • ✗
  • Metabolites not produced:
  • Hâ‚‚S;
  • ✗
  • Nitrate:
  • not reduced
  • ✗
  • Sulfate:
  • not reduced
  • ✗
  • Thiosulfate:
  • not reduced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Elusimicrobia Class:  Elusimicrobia Order:  Elusimicrobiales Family:  Elusimicrobiaceae Genus:  Elusimicrobium Gram stain:  neg O2 Relation.:  strictly anaerobic Spore:  No spore Motility:  Sessile Morphology:  Pleiomorph rod
    Health:  Unknown
    Source:  termite gut
    Opt. T:  30℃
    Lower T(℃):  20(+)
    Mid T(℃):  32(+)
    Opt. pH:  7.5
    pH 6.0-8.0:  6.5(+)
    pH >8:  8.5(+)
    		Casein:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    D-Arabinose:  neg L-Arabinose:  neg Fructose:  + Fucose:  neg D-Fucose:  neg Galactose:  + Glucose:  + Mannose:  neg Rhamnose:  neg Ribose:  w Sorbose:  neg D-Tagatose:  neg Xylose:  neg L-Xylose:  neg Cellubiose:  neg Gentiobiose:  neg Lactose:  neg Maltose:  neg Melezitose:  neg Melibiose:  neg Sucrose:  neg Trehalose:  neg Turanose:  w Amygdalin:  neg Glycogen:  neg Inulin:  neg Starch:  neg Adonitol:  neg D-Arabitol:  neg L-Arabitol:  neg Dulcitol:  neg Erythritol:  neg Glycerol:  neg Inositol:  neg Mannitol:  neg Sorbitol:  neg Xylitol:  neg Gluconate:  neg 2-Ketogluconate:  w 5-Ketogluconate:  w Me-α-D-Glc:  neg Me-α-D-Mann:  w Me-Xyloside:  neg NAc-α-GA:  + Salicin:  neg
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Formate:  neg Fumarate:  neg Lactate:  neg Pyruvate:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Catalase:  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Acetate:  + Lactate:  + Ethanol:  + H2S:  neg H2:  +

    References

    SPECIFIC REFERENCES FOR ELUSIMICROBIUM MINUTUM
  • Geissinger2009 - The ultramicrobacterium "Elusimicrobium minutum" gen. nov., sp. nov., the first cultivated representative of the termite group 1 phylum.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR ELUSIMICROBIUM MINUTUM
  • De2020 - Metagenomic analysis of gut microbiome and resistome of diarrheal fecal samples from Kolkata, India, reveals the core and variable microbiota including signatures of microbial dark matter.
  • ...............................
    • Added: January 19, 2022