Prevotella timonensis

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

Overview

  • Prevotella timonensis is a Gram-negative, non-spore-forming, anaerobic, non-motile, rod-shaped bacterium. It has been detected in at least 7 gut microbiome compilation studies or metastudies. The DNA G+C content is 42.4%. Prevotella timonensis is probably a common, although minor, coloniser of the gut. (Glazunova2007; Shah2010Bergeys)



  • This organism has been recovered from clinical sources (abscess, urine, ulcer - CCUG) and human faeces. The risk classification (www.baua.de) for this organism is 1, i.e., low risk of infection and spread (notes: opportunistic in immunocompromised patients). It is an opportunistic pathogen. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Glazunova2007); (Shah2010Bergeys);
    Character Response
  • Substrates hydrolysed or digested:
  • gelatin;
  • 💧
  • Bile tolerance:
  • Doesn't tolerate 20% bile
  • 🌡
  • Temperature tolerance:
  • grows at 25℃; grows at 37℃; Grows optimally at 37℃.
  • H+
  • Acid from carbohydrates usually produced:
  • glucose; lactose; maltose;
  • Active enzymes:
  • Ala arylamidase; alkaline phosphatase; acid phosphatase; Arg arylamidase; N-Ac β-glucosaminidase; β-galactosidase; α-glucosidase; Leu-Gly arylamidase;
    • SPECIAL FEATURES (Glazunova2007); (Shah2010Bergeys);
    Character Response
  • ✗
  • Metabolites not produced:
  • indole;
  • ✗
  • Nitrate:
  • not reduced
  • ✗
  • Pigments:
  • not produced
    • RESPONSE TO ANTIBIOTICS (Glazunova2007); (Goldstein2013);
    Class Active Resistant
  • Penicillins:
  • amoxicillin-clavulanic acid; imipenem; piperacillin-tazobactam;
  • Cephalosporins:
  • cefotetan;
  • Quinolines:
  • moxifloxacin;
  • Heterocycles:
  • metronidazole;
  • Vancomycins:
  • vancomycin;

  • Prevotella species at mucosal sites to localized and systemic disease, including periodontitis, bacterial vaginosis, rheumatoid arthritis, metabolic disorders and low_grade systemic inflammation. Intriguingly, Prevotella abundance is reduced within the lung microbiota of patients with asthma and chronic obstructive pulmonary disease. Increased Prevotella abundance is associated with augmented T helper type 17 (Th17) _mediated mucosal inflammation, which is in line with the marked capacity of Prevotella in driving Th17 immune responses in vitro. Studies indicate that Prevotella predominantly activate Toll_like receptor 2, leading to production of Th17_polarizing cytokines by antigen_presenting cells, including interleukin_23 (IL_23) and IL_1. Furthermore, Prevotella stimulate epithelial cells to produce IL_8, IL_6 and CCL20, which can promote mucosal Th17 immune responses and neutrophil recruitment. Prevotella_mediated mucosal inflammation leads to systemic dissemination of inflammatory mediators, bacteria and bacterial products, which in turn may affect systemic disease outcomes. [PMID: 28542929]

  • GutFeeling KnowledgeBase COMMENTS [Website]

    Prevotella species are anaerobic Gram_negative bacteria of the Bacteroidetes phylum, which also includes the clinically important genera Bacteroides and Porphyromonas. Prevotella strains are classically considered commensal bacteria due to their extensive presence in the healthy human body and their rare involvement in infections. Only a few strains have been reported to give rise to opportunistic endogenous infections, including chronic infections, abscesses and anaerobic pneumonia. [PMID: 28542929]

  • Walker, A. W., Sanderson, J. D., Churcher, C., Parkes, G. C., Hudspith, B. N., Rayment, N., Brostoff, J., Parkhill, J., Dougan, G., & Petrovska, L. (2011). High-throughput clone library analysis of the mucosa-associated microbiota reveals dysbiosis and differences between inflamed and non-inflamed regions of the intestine in inflammatory bowel disease. BMC Microbiology, 11, 7.

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Bacteroidetes Class:  Bacteroidia Order:  Bacteroidales Family:  Prevotellaceae Genus:  Prevotella Gram stain:  neg O2 Relation.:  anaerobic Spore:  No spore Motility:  Sessile Morphology:  Rod Pigment:  neg
    Health:  Unknown
    Source:  clinical sources (abscess, urine, ulcer - CCUG) and human faeces
    DNA G+C(%):  42.4
    Opt. T:  37℃
    Lower T(℃):  25(+)
    Mid T(℃):  37(+)
    Bile reaction(%):  20(neg)
    		Aesculin:  neg Urea:  neg Gelatin:  +
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Arabinose:  neg D-Arabinose:  neg Glucose:  + Mannose:  neg Rhamnose:  neg Ribose:  w D-Tagatose:  w Xylose:  neg Cellubiose:  neg Lactose:  + Maltose:  + Melezitose:  neg Sucrose:  neg Trehalose:  neg Aesculin:  w Glycerol:  neg Mannitol:  neg Sorbitol:  neg 5-Ketogluconate:  w Salicin:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Catalase:  neg Urease:  neg G6PDH6PGDH:  neg α-Arab:  neg Ac-β-glcamnd:  + α-Fucosidase:  vr α-Galactosidase:  neg β-Galactosidase:  + α-Glucosidase:  + β-Glucosidase:  neg β-Glucuronidase:  neg α-Mannosidase:  neg ArgDH:  neg GluDC:  neg AlanineAA:  + ArgAA:  + GluGluAA:  vr GlyAA:  neg HisAA:  neg LeuAA:  neg LeuGlyAA:  + ProAA:  neg PyrrolidAA:  neg PheAA:  neg PyrogluAA:  neg TyrAA:  neg AlkalineP:  + AcidP:  + Esterase(C4):  neg EstLip(C8):  neg Lipase(C14):  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Indole:  neg Pigment:  neg
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    Augmentin:  S(30; disc)
    penicillin_G:  Var
    piper-taz:  S(MIC50): 0.015, MIC90: 0.015, RNG: (0.015–0.03)
    imipenem:  S(MIC50): 0.03, MIC90: 0.06, RNG: (0.015–0.125)
    cefotetan:  S(30; disc)
    moxifloxacin:  S(MIC50): 0.5, MIC90: 1, RNG: (0.03–16)
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    vancomycin:  S(30; disc)
    metronidazole:  S(MIC50): 0.125, MIC90: 0.5, RNG: (0.03–1)

    References

    SPECIFIC REFERENCES FOR PREVOTELLA TIMONENSIS
  • Glazunova2007 - Prevotella timonensis sp. nov., isolated from a human breast abscess.
  • Shah2010Bergeys - Bergey's manual of systematic bacteriology. Vol. 4, The Bacteroidetes. Family Prevotellaceae, Genus I. Prevotella
  • Goldstein2013 - In vitro activity of Biapenem plus RPX7009, a carbapenem combined with a serine β-lactamase inhibitor, against anaerobic bacteria.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR PREVOTELLA TIMONENSIS
  • Byrd2020 - Stability and dynamics of the human gut microbiome and its association with systemic immune traits.
  • Chen2020 - Structural and Functional Characterization of the Gut Microbiota in Elderly Women With Migraine
  • Chen2020a - Featured Gut Microbiomes Associated With the Progression of Chronic Hepatitis B Disease
  • Hu2019 - The Gut Microbiome Signatures Discriminate Healthy From Pulmonary Tuberculosis Patients
  • RajilicStojanovic2014 - The first 1000 cultured species of the human gastrointestinal microbiota.
  • Yang2020 - Species-Level Analysis of Human Gut Microbiota With Metataxonomics.
  • Yang2020a - Establishing high-accuracy biomarkers for colorectal cancer by comparing fecal microbiomes in patients with healthy families
  • Zeller2014 - Potential of fecal microbiota for early-stage detection of colorectal cancer
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    • Added: April 08, 2021