Leptotrichia hongkongensis

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

Overview

  • Leptotrichia hongkongensis is a Gram-variable, non-spore-forming, facultatively anaerobic, non-motile, rod-shaped bacterium. Leptotrichia hongkongensis is probably a rare gut coloniser.



  • This organism has been recovered from a blood culture of cancer patient and oral specimens. It is an opportunistic pathogen. A possible gut commensal.
    • GENERAL CHARACTERISTICS
    Character Response
  • 🌡
  • Temperature tolerance:
  • grows at 37℃;
  • Active enzymes:
  • alkaline phosphatase; α-glucosidase; β-glucosidase;
    • SPECIAL FEATURES
    Character Response
  • ✗
  • Haemolysis:
  • absent
    • RESPONSE TO ANTIBIOTICS
    Class Active Resistant
  • Penicillins:
  • amoxicillin-clavulanic acid; imipenem; penicillin;
  • Quinolines:
  • levofloxacin;
  • Vancomycins:
  • vancomycin;

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Fusobacteria Class:  Fusobacteriia Order:  Fusobacteriales Family:  Leptotrichiaceae Genus:  Leptotrichia Gram stain:  vr O2 Relation.:  facultatively anaerobic Spore:  No spore Motility:  Sessile Morphology:  Rod
    Health:  Unknown
    Source:  a blood culture of cancer patient and oral specimens
    Mid T(℃):  37(+)
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Arabinose:  neg Glucose:  neg Xylose:  neg Trehalose:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Catalase:  neg Urease:  neg α-Arab:  neg Ac-β-glcamnd:  neg α-Fucosidase:  neg α-Galactosidase:  neg β-Galactosidase:  neg α-Glucosidase:  + β-Glucosidase:  + β-Glucuronidase:  neg α-Mannosidase:  neg Xylosidase:  neg ArgDH:  neg OrnDC:  neg AlanineAA:  neg ArgAA:  neg GluGluAA:  neg GlyAA:  neg LeuAA:  neg ProAA:  neg AlkalineP:  +
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    Augmentin:  S(0.016)
    penicillin:  S(0.006)
    imipenem:  S(0.012)
    levofloxacin:  R(>32)
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    vancomycin:  S(0.5)
    metronidazole:  Var(MIC50): 8), MIC90: Var(8

    References

    SPECIFIC REFERENCES FOR LEPTOTRICHIA HONGKONGENSIS
  • Chen2020a - Featured Gut Microbiomes Associated With the Progression of Chronic Hepatitis B Disease
  • Woo2010 - Leptotrichia hongkongensis sp. nov., a novel Leptotrichia species with the oral cavity as its natural reservoir
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    • Added: September 18, 2022