Cruoricaptor ignavus

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

Overview

  • Cruoricaptor ignavus is a Gram-negative, non-spore-forming, microaerophilic, non-motile, coccus bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 45.6%. Cruoricaptor ignavus is probably a rare gut coloniser. (Yassin2012)



  • This organism has been recovered from a septicaemia patient, Australia. It is an opportunistic pathogen. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Yassin2012);
    Character Response
  • Substrates hydrolysed or digested:
  • casein; gelatin; starch; tyrosine;
  • 🧂
  • Salt tolerance:
  • tolerates 2% salt;
  • pH
  • Acidity tolerance:
  • tolerates pH 7; tolerates pH 9; Grows optimally at pH 7.8-8.
  • 🌡
  • Temperature tolerance:
  • doesn't grow at 15℃; grows at 22℃; grows at 37℃; doesn't grow at 42℃; Grows optimally at 35℃.
  • Active enzymes:
  • alkaline phosphatase; acid phosphatase; catalase; esterase lipase C8; α-glucosidase; Leu arylamidase; oxidase; Val arylamidase; naphthol-ASBI-P;
    • SPECIAL FEATURES (Yassin2012);
    Character Response
  • ✗
  • Metabolites not produced:
  • H₂S; indole;
  • ✗
  • VP test:
  • not active
  • ✗
  • Haemolysis:
  • absent
  • ✗
  • Nitrate:
  • not reduced
  • Pigments:
  • orange-yellow
    • RESPONSE TO ANTIBIOTICS (Yassin2012);
    Class Active Resistant
  • Penicillins:
  • ampicillin; imipenem; meropenem; penicillin;
  • Cephalosporins:
  • cefazolin;
  • Macrolides:
  • erythromycin;
  • Tetracyclines:
  • doxycycline;
  • Quinolines:
  • ciprofloxacin;
  • Aminoglycosides:
  • amikacin; gentamicin; tobramycin;
  • Heterocycles:
  • chloramphenicol;
  • fosfomycin; metronidazole; trimethoprim-sulfamethoxazole;
  • Vancomycins:
  • vancomycin;
  • Miscellaneous antibiotics:
  • linezolid;
  • colistin;

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Bacteroidetes Class:  Flavobacteriia Order:  Flavobacteriales Family:  Weeksellaceae Genus:  Cruoricaptor Gram stain:  neg O2 Relation.:  microaerophilic Spore:  No spore Motility:  Sessile Morphology:  Coccus Pigment:  orange-yellow
    Health:  Unknown
    Source:  a septicaemia patient, Australia
    DNA G+C(%):  45.6
    Opt. T:  35℃
    Low T(℃):  15(neg)
    Lower T(℃):  22(+)
    Mid T(℃):  37(+)
    High T(℃):  42(neg)
    NaCl 0.5-2%:  2(+)
    Opt. pH:  7.8-8
    pH 6.0-8.0:  7(+)
    pH >8:  9(+)
    		Aesculin:  neg Urea:  neg Gelatin:  + Starch:  + Casein:  + DNA:  neg Tyrosine:  + Hippurate:  neg Tween:  80(+)
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    L-Arabinose:  neg Glucose:  neg Rhamnose:  neg Melibiose:  neg Sucrose:  neg Amygdalin:  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 Fucose:  neg D-Fucose:  neg Galactose:  neg Glucose:  neg Mannose:  neg Rhamnose:  neg Ribose:  neg Sorbose:  neg D-Tagatose:  neg Xylose:  neg Cellubiose:  neg Gentiobiose:  neg Lactose:  neg Maltose:  neg Melezitose:  neg Melibiose:  neg Raffinose:  neg Sucrose:  neg D-Turanose:  neg Trehalose:  neg N_Acetyl_glucosamine:  neg Adonitol:  neg Amygdalin:  neg D-Arabitol:  neg L-Arabitol:  neg Arbutin:  neg Dulcitol:  neg Erythritol:  neg Aesculin:  neg Gluconate:  neg Glycerol:  neg Inositol:  neg Inulin:  neg Mannitol:  neg Salicin:  neg Sorbitol:  neg Starch:  neg Xylitol:  neg Adipate:  neg Caprate:  neg Citrate:  neg 2-Ketogluconate:  neg 5-Ketogluconate:  neg Malate:  neg Phenylacetate:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  + Catalase:  + Urease:  neg Ac-β-glcamnd:  neg α-Fucosidase:  neg β-Galactosidase:  neg α-Glucosidase:  + β-Glucosidase:  neg α-Mannosidase:  neg ArgDH:  neg Chymotrypsin:  w LysDC:  neg OrnDC:  neg TrpAA:  neg CystineAA:  w LeuAA:  + ValAA:  + AlkalineP:  + AcidP:  + Esterase(C4):  w EstLip(C8):  + Lipase(C14):  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  neg Indole:  neg Pigment:  orange-yellow
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    ampicillin:  Sens
    penicillin:  Sens
    imipenem:  Sens
    meropenem:  Sens
    cefazolin:  Sens
    amikacin:  Res
    gentamicin:  Res
    tobramycin:  Res
    erythromycin:  Sens
    linezolid:  Sens
    ciprofloxacin:  Sens
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    doxycycline:  Sens
    vancomycin:  Sens
    chloramphenicol:  Sens
    fosfomycin:  Res
    metronidazole:  Res
    SXT:  Res
    colistin:  Res

    References

    SPECIFIC REFERENCES FOR CRUORICAPTOR IGNAVUS
  • Yassin2012 - Cruoricaptor ignavus gen. nov., sp. nov., a novel bacterium of the family Flavobacteriaceae isolated from blood culture of a man with bacteraemia.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR CRUORICAPTOR IGNAVUS
  • New2022 - Collective effects of human genomic variation on microbiome function.
  • ...............................
    • Added: March 18, 2022