Lactobacillus hominis

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

Overview

  • Lactobacillus hominis is a Gram-positive, non-spore-forming, facultatively anaerobic, non-motile, short rod-shaped bacterium. The DNA G+C content is 42.8%. Lactobacillus hominis is likely to be transient and not a long-term gut coloniser. (Rossi2016; Cousin2013)



  • This organism has been recovered from human intestine. Pathogenicity status unknown, or very unlikely to be pathogenic. Likely to be transient and not a long-term gut commensal.
    • GENERAL CHARACTERISTICS (Cousin2013);
    Character Response
  • 🧂
  • Salt tolerance:
  • tolerates 5% salt;
  • pH
  • Acidity tolerance:
  • tolerates pH 5; tolerates pH 8.0; Grows optimally at pH 6-7.
  • 🌡
  • Temperature tolerance:
  • grows at 25℃; grows at 45℃; Grows optimally at 37℃.
  • H+
  • Acid from carbohydrates usually produced:
  • fructose; galactose; glucose; mannose; aesculin; starch; cellubiose; gentiobiose; lactose; maltose; raffinose; sucrose; trehalose; N-Ac glucosamine; salicin;
  • Active enzymes:
  • acid phosphatase; α-galactosidase; β-galactosidase; β-glucuronidase; Leu arylamidase;
    • SPECIAL FEATURES (Cousin2013);
    Character Response
  • ✓
  • Metabolites produced:
  • lactate;
  • ✗
  • Metabolites not produced:
  • indole;
  • ✓
  • VP test:
  • active
  • ✗
  • Nitrate:
  • not reduced
  • ✗
  • Nitrite:
  • not reduced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Firmicutes Class:  Bacilli Order:  Lactobacillales Family:  Lactobacillaceae Genus:  Lactobacillus Gram stain:  + O2 Relation.:  facultatively anaerobic Spore:  No spore Motility:  Sessile Morphology:  Short Rod
    Health:  Unknown
    Source:  human intestine
    DNA G+C(%):  42.8
    Opt. T:  37℃
    Lower T(℃):  25(+)
    High T(℃):  45(+)
    NaCl 3-5%:  5(+)
    Opt. pH:  6-7
    pH 4.2-5.9:  5(+)
    pH 6.0-8.0:  8.0(+)
    		Starch:  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:  + D-Lyxose:  neg Rhamnose:  neg Ribose:  neg Sorbose:  neg D-Tagatose:  neg Xylose:  neg Cellubiose:  + Gentiobiose:  + Lactose:  + Maltose:  + Melezitose:  neg Melibiose:  neg Sucrose:  + Trehalose:  + Turanose:  neg Amygdalin:  neg Aesculin:  + Glycogen:  neg Inulin:  neg Starch:  + Adonitol:  neg D-Arabitol:  neg Dulcitol:  neg Erythritol:  neg Glycerol:  neg Inositol:  neg Mannitol:  neg Sorbitol:  neg Xylitol:  neg Arbutin:  neg Gluconate:  neg 2-Ketogluconate:  neg 5-Ketogluconate:  neg Me-α-D-Glc:  neg Me-α-D-Mann:  neg Me-Xyloside:  neg NAc-α-GA:  + Salicin:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg Catalase:  neg Urease:  neg Ac-β-glcamnd:  neg α-Fucosidase:  neg α-Galactosidase:  + β-Galactosidase:  + α-Glucosidase:  w β-Glucosidase:  neg β-Glucuronidase:  + α-Mannosidase:  neg ArgDH:  neg Chymotrypsin:  neg LysDC:  neg OrnDC:  neg Trypsin:  neg LeuAA:  + ValAA:  neg AlkalineP:  w AcidP:  + Esterase(C4):  neg EstLip(C8):  neg Lipase(C14):  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Lactate:  + Indole:  neg

    References

    SPECIFIC REFERENCES FOR LACTOBACILLUS HOMINIS
  • Rossi2016 - Mining metagenomic whole genome sequences revealed subdominant but constant Lactobacillus population in the human gut microbiota.
  • Cousin2013 - Lactobacillus pasteurii sp. nov. and Lactobacillus hominis sp. nov.
  • ...............................
    • Added: May 06, 2022