Parabacteroides faecis

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

Overview

  • Parabacteroides faecis is a Gram-negative, non-spore-forming, strictly anaerobic, non-motile, rod-shaped bacterium. It has been detected in at least 2 gut microbiome compilation studies or metastudies. The DNA G+C content is 48.1%. Parabacteroides faecis is probably a rare gut coloniser. (Sakamoto2015)



  • This organism has been recovered from human faeces (CCUG). Pathogenicity status unknown, or very unlikely to be pathogenic. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Sakamoto2015);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin;
  • 💧
  • Bile tolerance:
  • Resistant to 20% bile
  • H+
  • Acid from carbohydrates usually produced:
  • glucose; mannose; rhamnose; xylose; cellubiose; lactose; maltose; melezitose; raffinose; sucrose; trehalose;
  • Active enzymes:
  • Ala arylamidase; alkaline phosphatase; arabinosidase; Arg arylamidase; N-Ac β-glucosaminidase; catalase; α-galactosidase; β-galactosidase; α-glucosidase; β-glucosidase; glutamic acid decarboxylase; Glu-Glu arylamidase; Gly arylamidase; G6PDH and 6PGDH; His arylamidase; Leu arylamidase; Leu-Gly arylamidase; Phe arylamidase; Ser arylamidase; Tyr arylamidase;
    • SPECIAL FEATURES (Sakamoto2015);
    Character Response
  • ✗
  • Metabolites not produced:
  • indole;
  • ✗
  • Nitrate:
  • not reduced
  • ✗
  • Pigments:
  • not produced

  • Bacteroides and Parabacteroides species are components of the colon resident microbiota, and both genera belong to the order Bacteroidales. Species of these genera are often associated with opportunistic mixed infections, such as intra-abdominal, obstetric-gynecologic and diabetic foot infections. In addition, these microorganisms are able to develop resistance to several antimicrobial drugs. Although antibiotics with good activity against these bacteria are currently available, high frequencies of resistance to some antimicrobials have been reported in several countries. Bacteroides and Parabacteroides species produce endogenous �_-lactamases, the most important mechanism of resistance to �_-lactam antibiotics. [PMID: 21655744]

  • GutFeeling KnowledgeBase COMMENTS [Website]

    Bacteroides and Parabacteroides species are components of the colon resident microbiota, and both genera belong to the order Bacteroidales. [PMID: 21655744] Cells are Gram-negative, obligately anaerobic, non-spore-forming, non-motile and rod-shaped, and 0.8-1.6μm in size. Major end-products are acetic and succinic acids. [PMID: 16825636]

    • 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:  Sessile Morphology:  Rod Pigment:  neg
    Health:  Unknown
    Source:  human faeces (CCUG)
    DNA G+C(%):  48.1
    Bile reaction(%):  20(+)
    		Aesculin:  + Gelatin:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    L-Arabinose:  neg Glucose:  + Mannose:  + Rhamnose:  + Xylose:  + Cellubiose:  + Lactose:  + Maltose:  + Melezitose:  + Sucrose:  + Trehalose:  + Glycerol:  neg Mannitol:  neg Sorbitol:  neg Salicin:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Catalase:  + Urease:  neg G6PDH6PGDH:  + α-Arab:  + Ac-β-glcamnd:  + α-Fucosidase:  neg α-Galactosidase:  + β-Galactosidase:  + α-Glucosidase:  + β-Glucosidase:  + β-Glucuronidase:  neg ArgDH:  neg GluDC:  + AlanineAA:  + ArgAA:  + GluGluAA:  + GlyAA:  + HisAA:  + LeuAA:  + LeuGlyAA:  + ProAA:  neg PheAA:  + PyrogluAA:  neg SerAA:  + TyrAA:  + AlkalineP:  +
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Indole:  neg Pigment:  neg

    References

    SPECIFIC REFERENCES FOR PARABACTEROIDES FAECIS
  • Sakamoto2015 - Parabacteroides faecis sp. nov., isolated from human faeces.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR PARABACTEROIDES FAECIS
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
  • Yang2020 - Species-Level Analysis of Human Gut Microbiota With Metataxonomics.
  • Yang2020a - Establishing high-accuracy biomarkers for colorectal cancer by comparing fecal microbiomes in patients with healthy families
  • ...............................
    • GENERAL REFERENCES FOR PARABACTEROIDES FAECIS
  • CCUG - Culture Collection University of Gothenburg - Entire Collection
    • Added: July 12, 2021