Collinsella ihumii

(aka Collinsella ihuae)

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

Overview

  • Collinsella ihumii, (aka Collinsella ihuae), is a Gram-positive, non-spore-forming, strictly anaerobic, non-motile, rod-shaped bacterium. It has been detected in at least 3 gut microbiome compilation studies or metastudies. The DNA G+C content is 64.1%. Collinsella ihumii is probably a rare gut coloniser. (BenKhedher2021; Durand2017b)



  • This organism has been recovered from human faeces (healthy volunteer). Pathogenicity status unknown, or very unlikely to be pathogenic. A possible gut commensal.
    • GENERAL CHARACTERISTICS (BenKhedher2021); (Durand2017b);
    Character Response
  • 🌡
  • Temperature tolerance:
  • doesn't grow at 28℃; grows at 45℃; Grows optimally at 37℃.
  • H+
  • Acid from carbohydrates usually produced:
  • arabinose; glucose; mannose; rhamnose; xylose; cellubiose; lactose; maltose; melezitose; trehalose; mannitol; sorbitol;
    • SPECIAL FEATURES
    Character Response
  • ✗
  • Haemolysis:
  • absent
  • NOTES

    Strain GD8 is a new species belonging to the order Coriobacteriales that was isolated from fresh stool of a French volunteer. It is an anaerobic Gram-positive bacterium isolated from human gut microbiota. The sequence analysis of the 16S rRNA gene showed that our strain GD8 was 96.2% of similarity with Collinsella massiliensis strain An5 which was the phylogenetically related species. Its genome size is 2,836,446 bp with 64.1 mol% of G + C content. Strain GD8T (= CSUR P2019 = DSM 101062) is the type strain of the new species Collinsella ihumii sp. nov.

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Actinobacteria Class:  Coriobacteriia Order:  Coriobacteriales Family:  Coriobacteriaceae Genus:  Collinsella Alt. name:  Collinsella ihuae Gram stain:  + O2 Relation.:  strictly anaerobic Spore:  No spore Motility:  Sessile Morphology:  Rod
    Health:  Unknown
    Source:  human faeces (healthy volunteer)
    DNA G+C(%):  64.1
    Opt. T:  37℃
    Lower T(℃):  28(neg)
    High T(℃):  45(+)
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Arabinose:  + Glucose:  + Mannose:  + Rhamnose:  + Xylose:  + Cellubiose:  + Lactose:  + Maltose:  + Melezitose:  + Trehalose:  + Mannitol:  + Sorbitol:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg Catalase:  neg

    References

    SPECIFIC REFERENCES FOR COLLINSELLA IHUMII
  • BenKhedher2021 - Collinsella ihumii sp. nov., a new anaerobic bacterium isolated from human stool.
  • Durand2017b - Description of 'Gorbachella massiliensis' gen. nov., sp. nov., 'Fenollaria timonensis' sp. nov., 'Intestinimonas timonensis' sp. nov. and 'Collinsella ihuae' sp. nov. isolated from healthy fresh stools with culturomics.
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    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR COLLINSELLA IHUMII
  • Byrd2020 - Stability and dynamics of the human gut microbiome and its association with systemic immune traits.
  • De2020 - Metagenomic analysis of gut microbiome and resistome of diarrheal fecal samples from Kolkata, India, reveals the core and variable microbiota including signatures of microbial dark matter.
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
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    • Added: January 14, 2022