Parabacteroides pekinense

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

Overview

  • Parabacteroides pekinense is a Gram-negative, non-spore-forming, strictly anaerobic, motile, rod-shaped bacterium. The DNA G+C content is 46.5%. Parabacteroides pekinense is probably a rare gut coloniser.



  • This organism has been recovered from human faeces (healthy). Pathogenicity status unknown, or very unlikely to be pathogenic. A possible gut commensal.
    • GENERAL CHARACTERISTICS
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin;
  • 🧂
  • Salt tolerance:
  • tolerates 0.1-2% salt; Grows optimally with 1% salt.
  • pH
  • Acidity tolerance:
  • tolerates pH 5.5; tolerates pH 9;
  • 🌡
  • Temperature tolerance:
  • doesn't grow at 25℃; doesn't grow at 50℃; Grows optimally at 35℃.
  • H+
  • Acid from carbohydrates usually produced:
  • L-arabinose; glucose; mannose; rhamnose; xylose; aesculin; lactose; raffinose;
    • RESPONSE TO ANTIBIOTICS
    Class Active Resistant
  • Penicillins:
  • meropenem;
  • aztreonam;
  • Cephalosporins:
  • cefepime;
  • Quinolines:
  • levofloxacin;

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Bacteroidetes Class:  Bacteroidia Order:  Bacteroidales Family:  Tannerellaceae Genus:  Parabacteroides Gram stain:  neg O2 Relation.:  strictly anaerobic Spore:  No spore Motility:  Swimming Morphology:  Rod
    Health:  Unknown
    Source:  human faeces (healthy)
    DNA G+C(%):  46.5
    Opt. T:  35℃
    Lower T(℃):  25(neg)
    High T(℃):  50(neg)
    NaCl 0.5-2%:  0.1-2(+)
    pH 4.2-5.9:  5.5(+)
    pH >8:  9(+)
    		Aesculin:  + Gelatin:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    L-Arabinose:  + Glucose:  + Mannose:  + Rhamnose:  + Xylose:  + Cellubiose:  neg Lactose:  + Maltose:  neg Melezitose:  neg Trehalose:  neg Aesculin:  + Glycerol:  neg Mannitol:  neg Sorbitol:  neg Salicin:  neg
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Trp:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    aztreonam:  R(30; disc)
    meropenem:  S(10; disc)
    cefepime:  S(30; disc)
    levofloxacin:  S(5; disc)
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)

    References

    Added: April 09, 2023