Psychrobacter namhaensis

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

Overview

  • Psychrobacter namhaensis is a Gram-negative, non-spore-forming, aerobic, non-motile, bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 45.3%. Psychrobacter namhaensis is likely to be transient and not a long-term gut coloniser. (Yoon2005)



  • This organism has been recovered from sea water off South Korea and human faeces. 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.
    • GENERAL CHARACTERISTICS (Yoon2005);
    Character Response
  • Substrates hydrolysed or digested:
  • tyrosine;
  • 🧂
  • Salt tolerance:
  • tolerates 0% salt; tolerates 13% salt; Grows optimally with 2-3% salt.
  • pH
  • Acidity tolerance:
  • doesn't tolerate pH 4.5; Grows optimally at pH 6.5-7.5.
  • 🌡
  • Temperature tolerance:
  • grows at 4℃; grows at 37℃; Grows optimally at 25-30℃.
  • H+
  • Acid from carbohydrates usually produced:
  • L-arabinose; galactose; glucose; mannose; rhamnose; ribose; xylose; cellubiose; lactose; melibiose;
  • ⥅
  • Substrates assimilated or utilised:
  • acetate; benzoate; malate; pyruvate; succinate;
  • Active enzymes:
  • alkaline phosphatase; catalase; esterase C4; esterase lipase C8; Leu arylamidase; oxidase;
    • SPECIAL FEATURES (Yoon2005);
    Character Response
  • ✗
  • Metabolites not produced:
  • Hâ‚‚S; indole;
  • ✗
  • Nitrate:
  • not reduced
    • RESPONSE TO ANTIBIOTICS (Yoon2005);
    Class Active Resistant
  • Penicillins:
  • ampicillin; penicillin G;
  • Cephalosporins:
  • cephalothin;
  • Tetracyclines:
  • tetracycline;
  • Aminoglycosides:
  • gentamicin; streptomycin;
  • Heterocycles:
  • chloramphenicol;
  • Miscellaneous antibiotics:
  • polymyxin B;
  • novobiocin;

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Gammaproteobacteria Order:  Moraxellales Family:  Moraxellaceae Genus:  Psychrobacter Gram stain:  neg O2 Relation.:  aerobic Spore:  No spore Motility:  Sessile
    Health:  Unknown
    Source:  sea water off South Korea and human faeces
    DNA G+C(%):  45.3
    Opt. T:  25-30℃
    Low T(℃):  4(+)
    Mid T(℃):  37(+)
    NaCl 0.5-2%:  0(+)
    NaCl >6%:  13(+)
    Opt. pH:  6.5-7.5
    pH 4.2-5.9:  4.5(neg)
    		Aesculin:  neg Urea:  neg Gelatin:  neg Starch:  neg Casein:  neg Tyrosine:  + Tween:  40(+) 80(+)
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    L-Arabinose:  + Fructose:  neg Galactose:  + Glucose:  + Mannose:  + Rhamnose:  + Ribose:  + Xylose:  + Cellubiose:  + Lactose:  + Maltose:  neg Melezitose:  neg Melibiose:  + Sucrose:  neg Trehalose:  neg Adonitol:  neg Inositol:  neg Mannitol:  neg Sorbitol:  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 Fructose:  neg Galactose:  neg Glucose:  neg Mannose:  neg Xylose:  neg Cellubiose:  neg Lactose:  neg Maltose:  neg Sucrose:  neg Trehalose:  neg Glu:  neg Acetate:  + Benzoate:  + Citrate:  neg Formate:  neg Malate:  + Pyruvate:  + Succinate:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  + Catalase:  + Urease:  neg Ac-β-glcamnd:  neg α-Fucosidase:  neg α-Galactosidase:  neg β-Galactosidase:  neg α-Glucosidase:  neg β-Glucosidase:  neg β-Glucuronidase:  neg α-Mannosidase:  neg ArgDH:  neg Chymotrypsin:  neg LysDC:  neg OrnDC:  neg Trypsin:  neg TrpAA:  neg CystineAA:  neg LeuAA:  + ValAA:  neg AlkalineP:  + AcidP:  neg Esterase(C4):  + EstLip(C8):  + Lipase(C14):  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  neg Indole:  neg
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    ampicillin:  R(10; disc)
    penicillin_G:  R(20U)
    cephalothin:  S(30; disc)
    gentamicin:  S(10; disc)
    streptomycin:  S(30; disc)
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    tetracycline:  R(30; disc)
    chloramphenicol:  S(100; disc)
    novobiocin:  R(5; disc)
    polymyxin_B:  S(300U)

    References

    SPECIFIC REFERENCES FOR PSYCHROBACTER NAMHAENSIS
  • Yoon2005 - Psychrobacter aquimaris sp. nov. and Psychrobacter namhaensis sp. nov., isolated from sea water of the South Sea in Korea.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR PSYCHROBACTER NAMHAENSIS
  • 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: December 15, 2021