Kytococcus schroeteri

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

Overview

  • Kytococcus schroeteri is a Gram-positive, non-spore-forming, aerobic, non-motile, coccus bacterium. It has been detected in at least 3 gut microbiome compilation studies or metastudies. Kytococcus schroeteri is probably a rare gut coloniser. (Becker2002)



  • This organism has been recovered from clinical sources (blood, wound, abdominal fluid - CCUG) and human faeces. The risk classification (www.baua.de) for this organism is 1, i.e., low risk of infection and spread (notes: opportunistic in immunocompromised patients). It is an opportunistic pathogen. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Becker2002);
    Character Response
  • Substrates hydrolysed or digested:
  • gelatin;
  • 🧂
  • Salt tolerance:
  • tolerates 6-10% salt;
  • 🌡
  • Temperature tolerance:
  • grows at 27℃; grows at 43℃; Grows optimally at 37℃.
  • Active enzymes:
  • Ala-Phe-Pro arylamidase; alkaline phosphatase; arginine dihydrolase; catalase; Leu arylamidase;
    • SPECIAL FEATURES (Becker2002);
    Character Response
  • ✗
  • VP test:
  • not active
  • ✗
  • Haemolysis:
  • absent
  • ✗
  • Nitrate:
  • not reduced
  • Pigments:
  • yellow
    • RESPONSE TO ANTIBIOTICS (Becker2002);
    Class Active Resistant
  • Penicillins:
  • oxacillin; penicillin;
  • Macrolides:
  • erythromycin;
  • Tetracyclines:
  • tetracycline;
  • Quinolines:
  • ciprofloxacin;
  • Aminoglycosides:
  • gentamicin;
  • Polypep/ketides:
  • bacitracin;
  • Heterocycles:
  • chloramphenicol;
  • nitrofurantoin;
  • Vancomycins:
  • vancomycin; teicoplanin;

  • Lagier, J.-C., Armougom, F., Million, M., Hugon, P., Pagnier, I., Robert, C., Bittar, F., Fournous, G., Gimenez, G., Maraninchi, M., Trape, J.-F., Koonin, E. V., La Scola, B., & Raoult, D. (2012). Microbial culturomics: paradigm shift in the human gut microbiome study. Clinical Microbiology and Infection: The Official Publication of the European Society of Clinical Microbiology and Infectious Diseases, 18(12), 1185–1193.

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Actinobacteria Class:  Actinomycetia Order:  Micrococcales Family:  Dermacoccaceae Genus:  Kytococcus Gram stain:  + O2 Relation.:  aerobic Spore:  No spore Motility:  Sessile Morphology:  Coccus Pigment:  yellow
    Health:  Unknown
    Source:  clinical sources (blood, wound, abdominal fluid - CCUG) and human faeces
    Opt. T:  37℃
    Lower T(℃):  27(+)
    High T(℃):  43(+)
    NaCl >6%:  6-10(+)
    		Aesculin:  neg Urea:  neg Gelatin:  + Starch:  neg Hippurate:  neg Tween:  80(+)
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Arabinose:  neg L-Arabinose:  neg Fructose:  neg Glucose:  neg Mannose:  neg Ribose:  neg D-Tagatose:  neg Xylose:  neg Cellubiose:  neg Lactose:  neg Maltose:  neg Melezitose:  neg Sucrose:  neg Trehalose:  neg Turanose:  neg Dextrin:  neg Glycogen:  neg D-Arabitol:  neg Mannitol:  neg Sorbitol:  neg Xylitol:  neg Me-α-D-Glc:  neg NAc-α-GA:  neg
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Citrate:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg 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 β-Mannosidase:  neg ArgDH:  + OrnDC:  neg AlaPheProAA:  + LeuAA:  + PyrrolidAA:  neg AlkalineP:  + AcidP:  neg Esterase(C4):  neg EstLip(C8):  neg Lecithinase:  neg Lipase(C14):  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Pigment:  yellow
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    oxacillin:  Res
    penicillin:  Res
    gentamicin:  Sens
    erythromycin:  Res
    ciprofloxacin:  Sens
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    tetracycline:  Sens
    teicoplanin:  Sens
    vancomycin:  Sens
    bacitracin:  Sens
    chloramphenicol:  Sens
    nitrofurantoin:  Res

    References

    SPECIFIC REFERENCES FOR KYTOCOCCUS SCHROETERI
  • Becker2002 - Kytococcus schroeteri sp. nov., a novel Gram-positive actinobacterium isolated from a human clinical source.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR KYTOCOCCUS SCHROETERI
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
  • Pfleiderer2013 - Culturomics identified 11 new bacterial species from a single anorexia nervosa stool sample.
  • RajilicStojanovic2014 - The first 1000 cultured species of the human gastrointestinal microbiota.
  • ...............................
    • Added: April 08, 2021