Franconibacter pulveris

(aka Cronobacter pulveris)

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

Overview

  • Franconibacter pulveris, (aka Cronobacter pulveris), is a Gram-negative, non-spore-forming, facultatively anaerobic, motile, coccobacillus bacterium. It has been detected in at least 2 gut microbiome compilation studies or metastudies. The DNA G+C content is 56.6%. Franconibacter pulveris is probably a rare gut coloniser. (Brady2013; Stephan2014)



  • This organism has been recovered from infant formula. Pathogenicity status unknown, or very unlikely to be pathogenic. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Brady2013); (Stephan2014);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin;
  • 🌡
  • Temperature tolerance:
  • doesn't grow at 10℃; grows at 37℃; grows at 44℃;
  • H+
  • Acid from carbohydrates usually produced:
  • L-arabinose; glucose; rhamnose; cellubiose; maltose; sucrose; trehalose; D-arabitol; mannitol;
  • ⥅
  • Substrates assimilated or utilised:
  • N-acetylglucosamine; L-arabinose; d_arabitol; cellubiose; fructose; galactose; gluconate; glucosamine; gentiobiose; glucose; glycerol; lactose; maltose; maltotriose; mannitol; mannose; melibiose; rhamnose; ribose; sucrose; trehalose; xylose; alanine; aspartate; glutamate; proline; serine; aconitate; fumarate; 4-hydroxybenzoate; 2-ketogluconate; 5-ketogluconate; DL-lactate; L-malate; mucate; quinate; saccharate; methyl-β-glucoside; methyl-α-galactoside; methyl-β-galactoside; glutamine; D-glucuronate;
  • ±
  • Strain-dependent substrate utilisation:
  • dulcitol; aesculin; methyl-α-glucoside; D-turanose; DL-glycerate; L-tartrate; glucose-1-phosphate; lactulose; putrescine; methyl succinate; N-acetylgalactosamine; D-glucose-6-phosphate;
  • Active enzymes:
  • catalase; α-galactosidase; β-galactosidase; α-glucosidase; β-glucosidase;
    • SPECIAL FEATURES (Brady2013); (Stephan2014);
    Character Response
  • ✗
  • Metabolites not produced:
  • H₂S; indole;
  • ✓
  • Methyl red test:
  • active
  • ✗
  • VP test:
  • not active
  • ✗
  • Haemolysis:
  • absent
  • ✓
  • NO3➔NO2:
  • reduced
  • Pigments:
  • yellow

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Gammaproteobacteria Order:  Enterobacterales Family:  Enterobacteriaceae Genus:  Franconibacter Alt. name:  Cronobacter pulveris Gram stain:  neg O2 Relation.:  facultatively anaerobic Spore:  No spore Motility:  Swimming Morphology:  Coccobacillus Pigment:  yellow
    Health:  Unknown
    Source:  infant formula
    DNA G+C(%):  56.6
    Low T(℃):  10(neg)
    Mid T(℃):  37(+)
    High T(℃):  44(+)
    		Aesculin:  + Urea:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    L-Arabinose:  + Glucose:  + Rhamnose:  + Cellubiose:  + Maltose:  + Sucrose:  + Trehalose:  + Adonitol:  neg D-Arabitol:  + L-Arabitol:  neg Inositol:  neg Mannitol:  + Sorbitol:  neg 5-Ketogluconate:  neg
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    L-Arabinose:  + Fructose:  + Fucose:  neg D-Fucose:  neg Galactose:  + Glucose:  + Mannose:  + Rhamnose:  + Ribose:  + Sorbose:  neg D-Tagatose:  neg Xylose:  + Cellubiose:  + Gentiobiose:  + Lactose:  + Maltose:  + Maltotriose:  + Melibiose:  + Sucrose:  + D-Turanose:  d Trehalose:  + N_Acetyl_glucosamine:  + D-Arabitol:  + L-Arabitol:  neg Dulcitol:  d Erythritol:  neg Aesculin:  d Ethanolamine:  neg Gluconate:  + Glucosamine:  + Glycerol:  + Inositol:  neg Mannitol:  + Me-α-D-Glc:  d Sorbitol:  neg Xylitol:  neg Ala:  + Asp:  + Betaine:  neg Glu:  + Histamine:  neg His:  neg Pro:  + Ser:  + Trigonelline:  neg Tryptamine:  neg Trp:  neg Tyr:  neg Aconitate:  + Benzoate:  neg Caprate:  neg Caprylate:  neg Fumarate:  + Glutarate:  neg DL-Glycerate:  d 3-Hydroxybutyrate:  neg 3-Hydroxybenzoate:  neg 4-Hydroxybenzoate:  + Itaconate:  neg 2-Ketogluconate:  + 5-Ketogluconate:  + DL-Lactate:  + L-Malate:  + Malonate:  neg Mucate:  + Phenylacetate:  neg Phenylpropionate:  neg Propionate:  neg Quinate:  + Saccharate:  + D-Tartrate:  neg L-Tartrate:  d
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  w Catalase:  + α-Galactosidase:  + β-Galactosidase:  + α-Glucosidase:  + β-Glucosidase:  + β-Glucuronidase:  neg ArgDH:  neg LysDC:  neg OrnDC:  neg AspAA:  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  neg Indole:  neg Pigment:  yellow

    References

    SPECIFIC REFERENCES FOR FRANCONIBACTER PULVERIS
  • Brady2013 - Taxonomic evaluation of the genus Enterobacter based on multilocus sequence analysis (MLSA): Proposal to reclassify E. nimipressuralis and E. amnigenus into Lelliottia gen. nov. as Lelliottia nimipressuralis comb. nov. and Lelliottia amnigena comb. nov., respectively, E. gergoviae and E. pyrinus into Pluralibacter gen. nov. as Pluralibacter gergoviae comb. nov. and Pluralibacter pyrinus comb. nov., respectively, E. cowanii, E. radicincitans, E. oryzae and E. arachidis into Kosakonia gen. nov. as Kosakonia cowanii comb. nov., Kosakonia radicincitans comb. nov., Kosakonia oryzae comb. nov. and Kosakonia arachidis comb. nov., respectively, and E. turicensis, E. helveticus and E. pulveris into Cronobacter as Cronobacter zurichensis nom. nov., Cronobacter helveticus comb. nov. and Cronobacter pulveris comb. nov., respectively, and emended description of the genera Enterobacter and Cronobacter.
  • Stephan2014 - Re-examination of the taxonomic status of Enterobacter helveticus, Enterobacter pulveris and Enterobacter turicensis as members of the genus Cronobacter and their reclassification in the genera Franconibacter gen. nov. and Siccibacter gen. nov. as Franconibacter helveticus comb. nov., Franconibacter pulveris comb. nov. and Siccibacter turicensis comb. nov., respectively.
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    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR FRANCONIBACTER PULVERIS
  • 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.
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    • Added: January 19, 2022