Bacteroides ilei

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

Overview

  • Bacteroides ilei is a Gram-negative, non-spore-forming, anaerobic, non-motile, fusobacterium bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 45.02%. Bacteroides ilei is probably a common, although minor, coloniser of the gut. (Andrieu2018)



  • This organism has been recovered from human ileum and colon (Andrieu2018). Pathogenicity status unknown, or very unlikely to be pathogenic. A possible gut commensal.
    • QUIRKS
  • In 68% of Europeans (unseenbio.com).
    • GENERAL CHARACTERISTICS (Andrieu2018);
    Character Response
  • 🧂
  • Salt tolerance:
  • Grows optimally with 0% salt.
  • pH
  • Acidity tolerance:
  • tolerates pH 5; tolerates pH 8.0;
  • 🌡
  • Temperature tolerance:
  • Grows optimally at 37℃.
  • H+
  • Acid from carbohydrates usually produced:
  • amygdalin; aesculin; glycogen; 5-ketogluconate;
  • Active enzymes:
  • alkaline phosphatase; acid phosphatase; chymotrypsin; esterase C4; fucosidase; α-galactosidase; β-galactosidase; α-glucosidase; β-glucosidase; naphthol-ASBI-P;
    • SPECIAL FEATURES (Andrieu2018);
    Character Response
  • ✗
  • Metabolites not produced:
  • indole;
    • RESPONSE TO ANTIBIOTICS (Andrieu2018);
    Class Active Resistant
  • Penicillins:
  • amoxicillin; amoxicillin-clavulanic acid; imipenem; oxacillin; penicillin;
  • Macrolides:
  • erythromycin;
  • Tetracyclines:
  • doxycycline;
  • Aminoglycosides:
  • tobramycin;
  • gentamicin;
  • Polypep/ketides:
  • rifampicin;
  • Heterocycles:
  • metronidazole; trimethoprim-sulfamethoxazole;
  • Miscellaneous antibiotics:
  • clindamycin;

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Bacteroidetes Class:  Bacteroidia Order:  Bacteroidales Family:  Bacteroidaceae Genus:  Bacteroides Gram stain:  neg O2 Relation.:  anaerobic Spore:  No spore Motility:  Sessile Morphology:  Fusobacterium
    Health:  Unknown
    Source:  human ileum and colon (Andrieu2018)
    DNA G+C(%):  45.02
    Opt. T:  37℃
    pH 4.2-5.9:  5(+)
    pH 6.0-8.0:  8.0(+)
    		Aesculin:  neg Gelatin:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Arabinose:  neg D-Arabinose:  neg L-Arabinose:  neg Fructose:  neg Fucose:  neg D-Fucose:  neg Galactose:  neg Glucose:  neg Mannose:  neg D-Lyxose:  neg Rhamnose:  neg Ribose:  neg Sorbose:  neg D-Tagatose:  neg Xylose:  neg L-Xylose:  neg Cellubiose:  neg Gentiobiose:  neg Lactose:  neg Maltose:  neg Melezitose:  neg Melibiose:  neg Sucrose:  neg Trehalose:  neg Turanose:  neg Amygdalin:  + Aesculin:  + Glycogen:  + Inulin:  neg Xylan:  neg Adonitol:  neg D-Arabitol:  neg L-Arabitol:  neg Dulcitol:  neg Erythritol:  neg Glycerol:  neg Inositol:  neg Mannitol:  neg Sorbitol:  neg Xylitol:  neg Arbutin:  neg Gluconate:  neg 2-Ketogluconate:  neg 5-Ketogluconate:  + Me-α-D-Glc:  neg Me-α-D-Mann:  neg Me-Xyloside:  neg NAc-α-GA:  neg Salicin:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg Catalase:  neg Urease:  neg Ac-β-glcamnd:  neg α-Fucosidase:  + α-Galactosidase:  + β-Galactosidase:  + α-Glucosidase:  + β-Glucosidase:  + β-Glucuronidase:  neg α-Mannosidase:  neg Chymotrypsin:  + Trypsin:  neg CystineAA:  neg LeuAA:  neg ValAA:  neg AlkalineP:  + AcidP:  + Esterase(C4):  + EstLip(C8):  neg Lipase(C14):  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Indole:  neg
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    amoxicillin:  S(25; disc)
    Augmentin:  S(30; disc)
    oxacillin:  S(5; disc)
    penicillin:  S(10U)
    imipenem:  S(10; disc)
    gentamicin:  R(15; disc)
    tobramycin:  S(10; disc)
    erythromycin:  S(15; disc)
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    doxycycline:  S(30; disc)
    rifampicin:  S(30; disc)
    metronidazole:  S(4; disc)
    SXT:  S(25; disc)
    clindamycin:  S(15; disc)

    References

    SPECIFIC REFERENCES FOR BACTEROIDES ILEI
  • Andrieu2018 - Non-contiguous finished genome sequences and description of Bacteroides mediterraneensis sp. nov., Bacteroides ihuae sp. nov., Bacteroides togonis sp. nov., Bacteroides ndongoniae sp. nov., Bacteroides ilei sp. nov. and Bacteroides congonensis sp. nov. identified by culturomics.
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    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR BACTEROIDES ILEI
  • Byrd2020 - Stability and dynamics of the human gut microbiome and its association with systemic immune traits.
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    • Added: July 20, 2021