Merdimonas faecis

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

Overview

  • Merdimonas faecis is a Gram-positive, non-spore-forming, strictly anaerobic, non-motile, rod-shaped bacterium. The DNA G+C content is 47.0%. Merdimonas faecis is probably a rare gut coloniser. (Seo2017)



  • This organism has been recovered from human faeces (Seo2017). Pathogenicity status unknown, or very unlikely to be pathogenic. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Seo2017);
    Character Response
  • pH
  • Acidity tolerance:
  • tolerates pH 6.0-6.8; Grows optimally at pH 6.8.
  • 🌡
  • Temperature tolerance:
  • grows at 25℃; grows at 45℃; Grows optimally at 37℃.
  • Active enzymes:
  • alkaline phosphatase; arabinosidase; acid phosphatase; esterase C4; α-galactosidase; α-glucosidase; β-glucosidase; glutamic acid decarboxylase; Pro arylamidase; naphthol-ASBI-P;
    • SPECIAL FEATURES (Seo2017);
    Character Response
  • ✓
  • Metabolites produced:
  • acetate (major);
  • ✗
  • Metabolites not produced:
  • H₂S; indole;
  • ✗
  • Nitrate:
  • not reduced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Firmicutes Class:  Clostridia Order:  Eubacteriales Family:  Lachnospiraceae Genus:  Merdimonas Gram stain:  + O2 Relation.:  strictly anaerobic Spore:  No spore Motility:  Sessile Morphology:  Rod
    Health:  Unknown
    Source:  human faeces (Seo2017)
    DNA G+C(%):  47.0
    Opt. T:  37℃
    Lower T(℃):  25(+)
    High T(℃):  45(+)
    Opt. pH:  6.8
    pH 6.0-8.0:  6.0-6.8(+)
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    L-Arabinose:  neg Glucose:  neg Mannose:  neg Xylose:  neg Lactose:  neg Maltose:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg Catalase:  neg Urease:  neg α-Arab:  + Ac-β-glcamnd:  neg α-Fucosidase:  neg α-Galactosidase:  + β-Galactosidase:  neg α-Glucosidase:  + β-Glucosidase:  + β-Glucuronidase:  neg α-Mannosidase:  neg ArgDH:  neg Chymotrypsin:  neg GluDC:  + Trypsin:  neg AlanineAA:  w ArgAA:  neg CystineAA:  neg GluGluAA:  neg GlyAA:  neg HisAA:  neg LeuAA:  neg LeuGlyAA:  neg ProAA:  + PheAA:  neg PyrogluAA:  neg SerAA:  neg TyrAA:  neg ValAA:  neg AlkalineP:  + AcidP:  + Esterase(C4):  + EstLip(C8):  w Lipase(C14):  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Acetate:  Major(+) H2S:  neg Indole:  neg

    References

    SPECIFIC REFERENCES FOR MERDIMONAS FAECIS
  • Seo2017 - Merdimonas faecis gen. nov., sp. nov., isolated from human faeces.
  • ...............................
    • GENERAL REFERENCES FOR MERDIMONAS FAECIS
  • Ludwig2009 - Revised road map to the phylum Firmicutes.
    • Added: July 12, 2021