Weissella viridescens

(aka Lactobacillus viridescens)

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

Overview

  • Weissella viridescens, (aka Lactobacillus viridescens), is a Gram-positive, non-spore-forming, facultatively anaerobic, non-motile, rod-shaped bacterium. It has been detected in at least 3 gut microbiome compilation studies or metastudies. The DNA G+C content is 41-44%. Weissella viridescens is probably a common, although minor, coloniser of the gut. (Collins1993a; Bjorkroth2011Bergey)



  • This organism has been recovered from human faeces (Sanz2007 - coeliac children), clinical specimens (blood), discolored cured meat products and pasteurized milk. The risk classification (www.baua.de) for this organism is 1, i.e., low risk of infection and spread. Is a rare opportunistic pathogen. A possible gut commensal.
    • QUIRKS
  • In 48% of Europeans (unseenbio.com). Minor coloniser.
    • GENERAL CHARACTERISTICS (Collins1993a); (Bjorkroth2011Bergey);
    Character Response
  • H+
  • Acid from carbohydrates usually produced:
  • maltose;
  • ±
  • Strain-dependent acid from carbs:
  • sucrose; trehalose;
    • SPECIAL FEATURES (Collins1993a); (Bjorkroth2011Bergey);
    Character Response
  • ✓
  • Metabolites produced:
  • acetate; lactate; ethanol; CO₂;

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Firmicutes Class:  Bacilli Order:  Lactobacillales Family:  Lactobacillaceae Genus:  Weissella Alt. name:  Lactobacillus viridescens Gram stain:  + O2 Relation.:  facultatively anaerobic Spore:  No spore Motility:  Sessile Morphology:  Rod
    Health:  Unknown
    Source:  human faeces (Sanz2007 - coeliac children), clinical specimens (blood), discolored cured meat products and pasteurized milk
    DNA G+C(%):  41-44
    		Arginine:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    L-Arabinose:  neg Galactose:  neg Ribose:  neg Xylose:  neg Cellubiose:  neg Maltose:  + Melibiose:  neg Sucrose:  d Trehalose:  d
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg Catalase:  neg

    References

    SPECIFIC REFERENCES FOR WEISSELLA VIRIDESCENS
  • Collins1993a - Taxonomic studies on some leuconostoc-like organisms from fermented sausages: description of a new genus Weissella for the Leuconostoc paramesenteroides group of species.
  • Bjorkroth2011Bergey - Bergey's manual of systematic bacteriology. Vol. 3, The Firmicutes. Family Leuconostocaceae, Genus III. Weissella
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR WEISSELLA VIRIDESCENS
  • Byrd2020 - Stability and dynamics of the human gut microbiome and its association with systemic immune traits.
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
  • Yang2020 - Species-Level Analysis of Human Gut Microbiota With Metataxonomics.
  • Yang2020a - Establishing high-accuracy biomarkers for colorectal cancer by comparing fecal microbiomes in patients with healthy families
  • ...............................
    • GENERAL REFERENCES FOR WEISSELLA VIRIDESCENS
  • Sanz2007 - Differences in faecal bacterial communities in coeliac and healthy children as detected by PCR and denaturing gradient gel electrophoresis
    • Added: October 28, 2021