Fructilactobacillus fructivorans

(aka Lactobacillus fructivorans)

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

Overview

  • Fructilactobacillus fructivorans, (aka Lactobacillus fructivorans), is a Gram-positive, non-spore-forming, microaerophilic, non-motile, rod-shaped bacterium. The DNA G+C content is 38.9%. Fructilactobacillus fructivorans is likely to be transient and not a long-term gut coloniser. (Rossi2016; Zhao2019)



  • The risk classification (www.baua.de) for this organism is 1, i.e., low risk of infection and spread. Pathogenicity status unknown, or very unlikely to be pathogenic. Likely to be transient and not a long-term gut commensal.
    • QUIRKS
  • Can grow in media with up to 15% ethanol.
    • GENERAL CHARACTERISTICS (Zhao2019);
    Character Response
  • Substrates hydrolysed or digested:
  • arginine;
  • pH
  • Acidity tolerance:
  • Grows optimally at pH 5.0-5.5.
  • 🌡
  • Temperature tolerance:
  • grows at 20℃; grows at 35℃; Grows optimally at 25-30℃.
  • H+
  • Acid from carbohydrates usually produced:
  • fructose; glucose; gluconate;
  • ±
  • Strain-dependent acid from carbs:
  • mannose; ribose; maltose; sucrose; mannitol; sorbitol; salicin;
    • SPECIAL FEATURES (Zhao2019);
    Character Response
  • ✓
  • Metabolites produced:
  • lactate; ammonia;
  • ✗
  • Metabolites not produced:
  • Hâ‚‚S; indole;
  • ✗
  • Nitrate:
  • not reduced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Firmicutes Class:  Bacilli Order:  Lactobacillales Family:  Lactobacillaceae Genus:  Fructilactobacillus Alt. name:  Lactobacillus fructivorans Gram stain:  + O2 Relation.:  microaerophilic Spore:  No spore Motility:  Sessile Morphology:  Rod
    Health:  Unknown
    DNA G+C(%):  38.9
    Opt. T:  25-30℃
    Lower T(℃):  20(+)
    Mid T(℃):  35(+)
    Opt. pH:  5.0-5.5
    		Arginine:  +
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    L-Arabinose:  neg Fructose:  + Galactose:  neg Glucose:  + Mannose:  d Rhamnose:  neg Ribose:  d Xylose:  neg Cellubiose:  neg Lactose:  neg Maltose:  d Melezitose:  neg Melibiose:  neg Sucrose:  d Trehalose:  neg Amygdalin:  neg Mannitol:  d Sorbitol:  d Gluconate:  + Salicin:  d
    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

    		Lactate:  + H2S:  neg Ammonia:  + Indole:  neg

    References

    SPECIFIC REFERENCES FOR FRUCTILACTOBACILLUS FRUCTIVORANS
  • Rossi2016 - Mining metagenomic whole genome sequences revealed subdominant but constant Lactobacillus population in the human gut microbiota.
  • Zhao2019 - Lactobacillus homohiochii is a later heterotypic synonym of Lactobacillus fructivorans.
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    • Added: May 06, 2022