Rossellomorea vietnamensis

(aka Bacillus vietnamensis)

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

Overview

  • Rossellomorea vietnamensis, (aka Bacillus vietnamensis), is a Gram-positive, spore-forming, aerobic, motile, rod-shaped bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 43-44%. Rossellomorea vietnamensis is probably a rare gut coloniser. (Noguchi2004)



  • This organism has been recovered from fish sauce, Vietnam. 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. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Noguchi2004);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin; casein; DNA; gelatin; starch; tyrosine;
  • 🧂
  • Salt tolerance:
  • tolerates 0% salt; tolerates 15% salt; Grows optimally with 1% salt.
  • pH
  • Acidity tolerance:
  • tolerates pH 6.5; tolerates pH 10;
  • 🌡
  • Temperature tolerance:
  • grows at 10℃; grows at 40℃; Grows optimally at 30-40℃.
  • H+
  • Acid from carbohydrates usually produced:
  • fructose; glucose; ribose; aesculin; glycogen; inulin; starch; maltose; sucrose; trehalose; glycerol; mannitol; N-Ac glucosamine;
  • ±
  • Strain-dependent acid from carbs:
  • mannose;
  • ⥅
  • Substrates assimilated or utilised:
  • N-acetylglucosamine; gluconate; glucose; maltose; mannitol; L-malate; D-malate;
  • Active enzymes:
  • catalase; β-galactosidase; oxidase;
    • SPECIAL FEATURES (Noguchi2004);
    Character Response
  • ✗
  • Metabolites not produced:
  • H₂S; indole;

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Firmicutes Class:  Bacilli Order:  Bacillales Family:  Bacillaceae Genus:  Rossellomorea Alt. name:  Bacillus vietnamensis Gram stain:  + O2 Relation.:  aerobic Spore:  Endospore Motility:  Swimming Morphology:  Rod
    Health:  Unknown
    Source:  fish sauce, Vietnam
    DNA G+C(%):  43-44
    Opt. T:  30-40℃
    Low T(℃):  10(+)
    Mid T(℃):  40(+)
    NaCl 0.5-2%:  0(+)
    NaCl >6%:  15(+)
    pH 6.0-8.0:  6.5(+)
    pH >8:  10(+)
    		Aesculin:  + Urea:  neg Gelatin:  + Starch:  + Casein:  + Arginine:  neg DNA:  + Tyrosine:  +
    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:  neg Glucose:  + Mannose:  d(neg) D-Lyxose:  neg Rhamnose:  neg Ribose:  + Sorbose:  neg D-Tagatose:  neg Xylose:  neg L-Xylose:  neg Cellubiose:  neg Gentiobiose:  neg Lactose:  neg Maltose:  + Melezitose:  neg Melibiose:  neg Sucrose:  + Trehalose:  + Turanose:  neg Amygdalin:  neg Aesculin:  + Glycogen:  + Inulin:  + Starch:  + Adonitol:  neg D-Arabitol:  neg L-Arabitol:  neg Dulcitol:  neg Erythritol:  neg Glycerol:  + Inositol:  neg Mannitol:  + 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:  neg
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    L-Arabinose:  neg Glucose:  + Mannose:  neg Maltose:  + N_Acetyl_glucosamine:  + Gluconate:  + Mannitol:  + Adipate:  neg Caprate:  neg Citrate:  neg L-Malate:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  + Catalase:  + Urease:  neg β-Galactosidase:  + ArgDH:  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  neg Indole:  neg

    References

    SPECIFIC REFERENCES FOR ROSSELLOMOREA VIETNAMENSIS
  • Gupta2020a - Robust demarcation of 17 distinct Bacillus species clades, proposed as novel Bacillaceae genera, by phylogenomics and comparative genomic analyses: description of Robertmurraya kyonggiensis sp. nov. and proposal for an emended genus Bacillus limiting it only to the members of the Subtilis and Cereus clades of species.
  • Noguchi2004 - Bacillus vietnamensis sp. nov., a moderately halotolerant, aerobic, endospore-forming bacterium isolated from Vietnamese fish sauce.
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    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR ROSSELLOMOREA VIETNAMENSIS
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
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    • Added: January 14, 2022