Lacrimispora aerotolerans

(aka Clostridium aerotolerans)

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

Overview

  • Lacrimispora aerotolerans, (aka Clostridium aerotolerans), is a Gram-negative, spore-forming, strictly anaerobic, motile, rod-shaped bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 40%. Lacrimispora aerotolerans is probably a rare gut coloniser. (VanGylswyk1987; Chamkha2001a)



  • This organism has been recovered from the rumina of sheep. The risk classification (www.baua.de) for this organism is 1, i.e., low risk of infection and spread. Pathogenicity status unknown, or very unlikely to be pathogenic. A possible gut commensal.
    • GENERAL CHARACTERISTICS (VanGylswyk1987); (Chamkha2001a);
    Character Response
  • Substrates hydrolysed or digested:
  • pectin;
  • pH
  • Acidity tolerance:
  • tolerates pH 5.2;
  • 🌡
  • Temperature tolerance:
  • grows at 15℃; doesn't grow at 45℃; Grows optimally at 38℃.
  • H+
  • Acid from carbohydrates usually produced:
  • L-arabinose; fructose; galactose; glucose; mannose; rhamnose; xylose; starch; xylan; cellubiose; lactose; melibiose; raffinose; sucrose; salicin;
  • ±
  • Strain-dependent acid from carbs:
  • ribose; trehalose;
  • ⥅
  • Substrates assimilated or utilised:
  • m-coumarate;
  • Active enzymes:
  • lipase;
    • SPECIAL FEATURES (VanGylswyk1987); (Chamkha2001a);
    Character Response
  • ✓
  • Metabolites produced:
  • formate; acetate; lactate; ethanol; CO₂; H₂ (major);
  • ✗
  • Metabolites not produced:
  • H₂S; indole;
  • ✗
  • VP test:
  • not active
  • ✗
  • Nitrate:
  • not reduced
  • ✗
  • Sulfate:
  • not reduced

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Firmicutes Class:  Clostridia Order:  Eubacteriales Family:  Lachnospiraceae Genus:  Lacrimispora Alt. name:  Clostridium aerotolerans Gram stain:  neg O2 Relation.:  strictly anaerobic Spore:  Endospore Motility:  Swimming Morphology:  Rod
    Health:  Unknown
    Source:  the rumina of sheep
    DNA G+C(%):  40
    Opt. T:  38℃
    Low T(℃):  15(+)
    High T(℃):  45(neg)
    pH 4.2-5.9:  5.2(+)
    		Urea:  neg Gelatin:  neg Casein:  neg Pectin:  +
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    L-Arabinose:  + Fructose:  + Galactose:  + Glucose:  + Mannose:  + Rhamnose:  + Ribose:  d Xylose:  + Cellubiose:  + Lactose:  + Melibiose:  + Sucrose:  + Trehalose:  d Cellulose:  neg Aesculin:  w Starch:  + Xylan:  + Glycerol:  neg Inositol:  neg Mannitol:  neg Sorbitol:  neg Salicin:  +
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Butyrate:  neg Caproate:  neg Isobutyrate:  neg Isovalerate:  neg DL-Lactate:  neg Propionate:  neg Succinate:  neg Valerate:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Catalase:  neg Urease:  neg Lipase:  +
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Formate:  + Acetate:  + Lactate:  + Ethanol:  + H2S:  neg CO2:  + H2:  Major(+) Indole:  neg

    References

    SPECIFIC REFERENCES FOR LACRIMISPORA AEROTOLERANS
  • Haas2020 - Reclassification of the Clostridium clostridioforme and Clostridium sphenoides clades as Enterocloster gen. nov. and Lacrimispora gen. nov., including reclassification of 15 taxa.
  • VanGylswyk1987 - Clostridium aerotolerans sp. nov., a Xylanolytic Bacterium from Corn Stover and from the Rumina of Sheep Fed Corn Stover
  • Chamkha2001a - Metabolism of cinnamic acids by some Clostridiales and emendation of the descriptions of Clostridium aerotolerans, Clostridium celerecrescens and Clostridium xylanolyticum.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR LACRIMISPORA AEROTOLERANS
  • Lagier2016 - Culture of previously uncultured members of the human gut microbiota by culturomics.
  • ...............................
    • GENERAL REFERENCES FOR LACRIMISPORA AEROTOLERANS
  • Ludwig2009 - Revised road map to the phylum Firmicutes.
    • Added: January 14, 2022