Bacteroides faecalis

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

Overview

  • Bacteroides faecalis is a Gram-negative, non-spore-forming, strictly anaerobic, non-motile, coccobacillus bacterium. The DNA G+C content is 39.5%. Bacteroides faecalis is probably a rare gut coloniser. (Yu2019)



  • This organism has been recovered from human faeces (Yu2019). Pathogenicity status unknown, or very unlikely to be pathogenic. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Yu2019);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin; starch;
  • 🧂
  • Salt tolerance:
  • tolerates 1% salt; Grows optimally with 0.5% salt.
  • pH
  • Acidity tolerance:
  • tolerates pH 5; tolerates pH 9; Grows optimally at pH 5.
  • 🌡
  • Temperature tolerance:
  • grows at 15℃; Grows optimally at 37℃.
  • H+
  • Acid from carbohydrates usually produced:
  • glucose; mannose; rhamnose; glycogen; lactose; maltose; pullulan; melezitose; raffinose; sucrose; trehalose; glycerol; mannitol; salicin;
  • ⥅
  • Substrates assimilated or utilised:
  • cellulose; starch; xylan;
  • Active enzymes:
  • Ala arylamidase; alkaline phosphatase; N-Ac β-glucosaminidase; α-galactosidase; β-galactosidase; α-glucosidase; β-glucosidase; glutamic acid decarboxylase; Glu-Glu arylamidase; Leu-Gly arylamidase;
    • SPECIAL FEATURES (Yu2019);
    Character Response
  • ✓
  • Metabolites produced:
  • formate; acetate; lactate;
  • ✗
  • Metabolites not produced:
  • indole;
  • ✗
  • Nitrate:
  • not reduced

    • 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.:  strictly anaerobic Spore:  No spore Motility:  Sessile Morphology:  Coccobacillus
    Health:  Unknown
    Source:  human faeces (Yu2019)
    DNA G+C(%):  39.5
    Opt. T:  37℃
    Low T(℃):  15(+)
    NaCl 0.5-2%:  1(+)
    Opt. pH:  5
    pH 4.2-5.9:  5(+)
    pH >8:  9(+)
    		Aesculin:  + Gelatin:  neg Starch:  +
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    L-Arabinose:  w Glucose:  + Mannose:  + Rhamnose:  + Xylose:  w Cellubiose:  w Lactose:  + Maltose:  + Melezitose:  + Sucrose:  + Trehalose:  + Glycogen:  + Glycerol:  + Mannitol:  + Sorbitol:  w Salicin:  +
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Cellulose:  + Starch:  + Xylan:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg Catalase:  neg Urease:  neg α-Arab:  neg Ac-β-glcamnd:  + α-Fucosidase:  neg α-Galactosidase:  + β-Galactosidase:  + α-Glucosidase:  + β-Glucosidase:  + β-Glucuronidase:  neg ArgDH:  neg GluDC:  + AlanineAA:  + ArgAA:  neg GluGluAA:  + GlyAA:  neg HisAA:  neg LeuAA:  neg LeuGlyAA:  + ProAA:  neg PheAA:  neg PyrogluAA:  neg SerAA:  neg TyrAA:  neg AlkalineP:  +
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Formate:  + Acetate:  + Lactate:  + Indole:  neg

    References

    SPECIFIC REFERENCES FOR BACTEROIDES FAECALIS
  • Yu2019 - Bacteroides faecalis sp. nov., isolated from human faeces.
  • ...............................
    • Added: July 12, 2021