Pseudoclavibacter helvolus

(aka Zimmermannella helvola)

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

Overview

  • Pseudoclavibacter helvolus, (aka Zimmermannella helvola), is a Gram-positive, non-spore-forming, strictly aerobic, non-motile, rod-shaped bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 67%. Pseudoclavibacter helvolus is likely to be transient and not a long-term gut coloniser. (Manaia2004; Lin2004)



  • This organism has been recovered from butter. 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
  • Obligate aerobe; unlikely to be a gut coloniser.
    • GENERAL CHARACTERISTICS (Manaia2004); (Lin2004);
    Character Response
  • 🧂
  • Salt tolerance:
  • tolerates 0% salt; tolerates 6% salt;
  • pH
  • Acidity tolerance:
  • tolerates pH 6.0; tolerates pH 10;
  • 🌡
  • Temperature tolerance:
  • grows at 10℃; grows at 35℃; Grows optimally at 28-30℃.
  • ⥅
  • Substrates assimilated or utilised:
  • N-acetylglucosamine; cellubiose; aesculin; fructose; gluconate; gentiobiose; glucose; glycerol; lactose; maltose; mannitol; mannose; raffinose; sorbitol; sucrose; trehalose; D-turanose; xylose; alanine; glutamate; pyruvate; 2,3-butanediol; lactulose; psicose; glutamine; methyl pyruvate; adenosine; thymidine; uridine; inosine; L-lactate; AMP; TMP; UMP;
  • Active enzymes:
  • alkaline phosphatase; acid phosphatase; catalase; cystine arylamidase; esterase C4; esterase lipase C8; β-galactosidase; α-glucosidase; Leu arylamidase; lipase C14; Val arylamidase; naphthol-ASBI-P;
    • SPECIAL FEATURES (Manaia2004);
    Character Response
  • ✗
  • Nitrate:
  • not reduced
  • Pigments:
  • yellow

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Actinobacteria Class:  Actinomycetia Order:  Micrococcales Family:  Microbacteriaceae Genus:  Pseudoclavibacter Alt. name:  Zimmermannella helvola Gram stain:  + O2 Relation.:  strictly aerobic Spore:  No spore Motility:  Sessile Morphology:  Rod Pigment:  yellow
    Health:  Unknown
    Source:  butter
    DNA G+C(%):  67
    Opt. T:  28-30℃
    Low T(℃):  10(+)
    Mid T(℃):  35(+)
    NaCl 0.5-2%:  0(+)
    NaCl >6%:  6(+)
    pH 6.0-8.0:  6.0(+)
    pH >8:  10(+)
    		Starch:  neg Tween:  40(+) 80(+)
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Arabinose:  neg L-Arabinose:  neg Fructose:  + Fucose:  neg D-Fucose:  neg Galactose:  neg Glucose:  + D-Lyxose:  neg Mannose:  + Rhamnose:  neg Ribose:  neg Sorbose:  neg D-Tagatose:  neg Xylose:  + Cellubiose:  + Gentiobiose:  + Lactose:  + Maltose:  + Maltotriose:  neg Melezitose:  neg Melibiose:  neg Raffinose:  + Sucrose:  + D-Turanose:  + Trehalose:  + N_Acetyl_glucosamine:  + Adonitol:  neg Amygdalin:  neg D-Arabitol:  neg L-Arabitol:  neg Arbutin:  neg Dextrin:  w Dulcitol:  neg Erythritol:  neg Aesculin:  + Gluconate:  + Glycerol:  + Glycogen:  neg Inositol:  w Inulin:  neg Mannitol:  + Me-α-D-Glc:  neg Salicin:  neg Sorbitol:  + Starch:  neg Xylitol:  neg Ala:  + D-Ala:  neg Glu:  + Ser:  neg Acetate:  neg 3-Hydroxybutyrate:  neg L-Malate:  neg Propionate:  neg Pyruvate:  + Succinate:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  w Catalase:  + Ac-β-glcamnd:  neg α-Fucosidase:  neg α-Galactosidase:  neg β-Galactosidase:  + α-Glucosidase:  + β-Glucosidase:  neg β-Glucuronidase:  neg α-Mannosidase:  neg Chymotrypsin:  neg Trypsin:  neg CystineAA:  + LeuAA:  + ValAA:  + AlkalineP:  + AcidP:  + Esterase(C4):  + EstLip(C8):  + Lipase(C14):  +
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Pigment:  yellow

    References

    SPECIFIC REFERENCES FOR PSEUDOCLAVIBACTER HELVOLUS
  • Manaia2004 - Gulosibacter molinativorax gen. nov., sp. nov., a molinate-degrading bacterium, and classification of 'Brevibacterium helvolum' DSM 20419 as Pseudoclavibacter helvolus gen. nov., sp. nov.
  • Lin2004 - Zimmermannella helvola gen. nov., sp. nov., Zimmermannella alba sp. nov., Zimmermannella bifida sp. nov., Zimmermannella faecalis sp. nov. and Leucobacter albus sp. nov., novel members of the family Microbacteriaceae.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR PSEUDOCLAVIBACTER HELVOLUS
  • 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
  • ...............................
    • Added: February 09, 2022