Neisseria flavescens

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

Overview

  • Neisseria flavescens is a Gram-negative, non-spore-forming, aerobic, non-motile, diplococci bacterium. It has been detected in at least 8 gut microbiome compilation studies or metastudies. The DNA G+C content is 46–50%. Neisseria flavescens is probably a common, although minor, coloniser of the gut. (Barrett1994; Tonjum2005Bergey)



  • This organism has been recovered from clinical sources (nasopharynx, cerebrospinal fluid - CCUG) and human faeces. The risk classification (www.baua.de) for this organism is 2, i.e., risk of individual infection, but low risk of spread. It is an opportunistic pathogen. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Barrett1994); (Tonjum2005Bergey);
    Character Response
  • 🌡
  • Temperature tolerance:
  • grows at 35-37℃; Grows optimally at 35-37℃.
  • Active enzymes:
  • Ala arylamidase; carbonic anhydrase; catalase; γ-Glu transferase; Gly arylamidase; Leu arylamidase; oxidase; Pro arylamidase; Ser arylamidase;
    • SPECIAL FEATURES (Barrett1994); (Tonjum2005Bergey);
    Character Response
  • ✗
  • Metabolites not produced:
  • indole;
  • ✗
  • Haemolysis:
  • absent
  • ✗
  • Nitrate:
  • not reduced
  • ✓
  • Nitrite:
  • reduced
  • Pigments:
  • yellow

  • Lagier, J.-C., Armougom, F., Million, M., Hugon, P., Pagnier, I., Robert, C., Bittar, F., Fournous, G., Gimenez, G., Maraninchi, M., Trape, J.-F., Koonin, E. V., La Scola, B., & Raoult, D. (2012). Microbial culturomics: paradigm shift in the human gut microbiome study. Clinical Microbiology and Infection: The Official Publication of the European Society of Clinical Microbiology and Infectious Diseases, 18(12), 1185–1193.

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Betaproteobacteria Order:  Neisseriales Family:  Neisseriaceae Genus:  Neisseria Gram stain:  neg O2 Relation.:  aerobic Spore:  No spore Motility:  Sessile Morphology:  Diplococci Pigment:  yellow
    Health:  Unknown
    Source:  clinical sources (nasopharynx, cerebrospinal fluid - CCUG) and human faeces
    DNA G+C(%):  46–50
    Opt. T:  35-37℃
    Mid T(℃):  35-37(+)
    		Gelatin:  neg Starch:  vr DNA:  neg Tween:  80(neg)
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    D-Arabinose:  neg L-Arabinose:  neg Fructose:  neg Fucose:  neg Galactose:  neg Glucose:  neg Mannose:  neg D-Lyxose:  neg Rhamnose:  neg Ribose:  neg Sorbose:  neg L-Sorbose:  neg D-Tagatose:  neg L-Xylose:  neg Cellubiose:  neg Gentiobiose:  neg Lactose:  neg Maltose:  neg Melezitose:  neg Melibiose:  neg Sucrose:  neg Trehalose:  neg Turanose:  neg Amygdalin:  neg Dextrin:  neg Aesculin:  neg Glycogen:  neg Inulin:  neg Starch:  neg Adonitol:  neg D-Arabitol:  neg L-Arabitol:  neg Dulcitol:  neg Erythritol:  neg Glycerol:  neg Inositol:  neg Mannitol:  neg Sorbitol:  neg Xylitol:  neg Arbutin:  neg Gluconate:  neg 2-Ketogluconate:  neg 5-Ketogluconate:  neg Me-α-D-Glc:  neg Me-α-D-Mann:  neg Me-Xyloside:  neg NAc-α-GA:  neg Salicin:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  + Catalase:  + Urease:  neg Carbonic anh.:  + α-Arab:  neg Ac-β-glcamnd:  neg α-Fucosidase:  neg α-Galactosidase:  neg β-Galactosidase:  neg α-Glucosidase:  neg β-Glucosidase:  neg β-Glucuronidase:  neg α-Mannosidase:  neg Chymotrypsin:  neg γ-Glu transf.:  + OrnDC:  neg Trypsin:  neg AlanineAA:  + AlaPheProAA:  neg CystineAA:  neg GluGluAA:  neg GlyTrpAA:  neg GlyAA:  + HisAA:  neg LeuAA:  + ProAA:  + PheAA:  neg PyrogluAA:  neg SerAA:  + TyrAA:  neg ValAA:  neg AlkalineP:  neg AcidP:  neg DNAse:  neg Esterase(C4):  neg EstLip(C8):  neg Lipase:  neg Lipase(C14):  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Indole:  neg Pigment:  yellow

    References

    SPECIFIC REFERENCES FOR NEISSERIA FLAVESCENS
  • Barrett1994 - A numerical phenotypic taxonomic study of the genus Neisseria.
  • Tonjum2005Bergey - Bergey's manual of systematic bacteriology. Vol. 2, The Alpha-, Beta-, Delta-, and Epsilonproteobacteria Part C. Family Neisseriaceae, Genus I. Neisseria
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR NEISSERIA FLAVESCENS
  • 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.
  • New2022 - Collective effects of human genomic variation on microbiome function.
  • Pfleiderer2013 - Culturomics identified 11 new bacterial species from a single anorexia nervosa stool sample.
  • RajilicStojanovic2014 - The first 1000 cultured species of the human gastrointestinal microbiota.
  • Zeller2014 - Potential of fecal microbiota for early-stage detection of colorectal cancer
  • ...............................
    • Added: April 08, 2021