Vibrio neptunius

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

Overview

  • Vibrio neptunius is a Gram-negative, non-spore-forming, facultatively anaerobic, motile, rod-shaped - curved bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 46.0%. Vibrio neptunius is likely to be transient and not a long-term gut coloniser. (Thompson2003a)



  • This organism has been recovered from the larvae of bivalves, Brazil. 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. Likely to be transient and not a long-term gut commensal.
    • QUIRKS
  • Borderline cold mesophile, with optimum growth temp of 28C. Unlikely gut coloniser.
    • GENERAL CHARACTERISTICS (Thompson2003a);
    Character Response
  • Substrates hydrolysed or digested:
  • gelatin;
  • 🧂
  • Salt tolerance:
  • doesn't tolerate 0% salt; tolerates 7% salt; Grows optimally with 2.5% salt.
  • 🌡
  • Temperature tolerance:
  • doesn't grow at 4℃; doesn't grow at 40℃; Grows optimally at 28℃.
  • H+
  • Acid from carbohydrates usually produced:
  • glucose; sucrose;
  • ⥅
  • Substrates assimilated or utilised:
  • N-acetylglucosamine; dextrin; fructose; glucose; glycogen; maltose; mannose; methyl-α-glucoside; sucrose; trehalose; alanine; aspartate; glutamate; serine; threonine; citrate; DL-lactate; succinate; methyl-β-glucoside; glucose-1-phosphate; psicose; glutamine; L-asparagine; thymidine; uridine; inosine; D-glucose-6-phosphate;
  • Active enzymes:
  • alkaline phosphatase; N-Ac β-glucosaminidase; catalase; esterase C4; esterase lipase C8; lipase C14; oxidase; trypsin; tryptophan deaminase; Val arylamidase;
  • ±
  • Strain-dependent active enzymes:
  • arginine dihydrolase;
    • SPECIAL FEATURES (Thompson2003a);
    Character Response
  • ✓
  • Metabolites produced:
  • indole;
  • ✗
  • Metabolites not produced:
  • H₂S;
  • ✓
  • Methyl red test:
  • active
  • ✓
  • VP test:
  • active
  • ✓
  • Nitrate:
  • reduced
  • ✓
  • Thiosulfate:
  • reduced
  • Pigments:
  • yellow
    • RESPONSE TO ANTIBIOTICS (Thompson2003a);
    Class Active Resistant
  • Penicillins:
  • ampicillin;
  • Tetracyclines:
  • tetracycline;
  • Aminoglycosides:
  • kanamycin;
  • Heterocycles:
  • chloramphenicol;
  • Miscellaneous antibiotics:
  • polymyxin B;

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Gammaproteobacteria Order:  Vibrionales Family:  Vibrionaceae Genus:  Vibrio Gram stain:  neg O2 Relation.:  facultatively anaerobic Spore:  No spore Motility:  Swimming Morphology:  Rod - curved Pigment:  yellow
    Health:  Unknown
    Source:  the larvae of bivalves, Brazil
    DNA G+C(%):  46.0
    Opt. T:  28℃
    Low T(℃):  4(neg)
    Mid T(℃):  40(neg)
    NaCl 0.5-2%:  0(neg)
    NaCl >6%:  7(+)
    		Gelatin:  + Tween:  80(neg)
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Glucose:  + Rhamnose:  neg Melibiose:  neg Sucrose:  + Amygdalin:  neg Inositol:  neg Mannitol:  neg Sorbitol:  neg
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    L-Arabinose:  neg Fructose:  + Fucose:  neg Galactose:  neg Glucose:  + Mannose:  + Rhamnose:  neg Cellubiose:  neg Gentiobiose:  neg Lactose:  neg Maltose:  + Melibiose:  neg Raffinose:  neg Sucrose:  + D-Turanose:  neg Trehalose:  + N_Acetyl_glucosamine:  + Adonitol:  neg D-Arabitol:  neg Dextrin:  + Erythritol:  neg Gluconate:  neg Glycogen:  + Inositol:  neg Mannitol:  neg Me-α-D-Glc:  + Sorbitol:  neg Xylitol:  neg Ala:  + 4-Aminobutyrate:  neg Asp:  + Glu:  + His:  neg Leu:  neg Phe:  neg Ser:  + Thr:  + Aconitate:  cis(neg) Citrate:  + Formate:  neg 3-Hydroxybutyrate:  neg Itaconate:  neg DL-Lactate:  + Malonate:  neg Quinate:  neg Saccharate:  neg Sebacate:  neg Succinate:  +
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  + Catalase:  + Urease:  neg Ac-β-glcamnd:  + α-Galactosidase:  neg β-Galactosidase:  neg α-Glucosidase:  neg β-Glucosidase:  neg β-Glucuronidase:  neg ArgDH:  d Chymotrypsin:  neg LysDC:  neg OrnDC:  neg Trypsin:  + TrpAA:  + CystineAA:  neg ValAA:  + AlkalineP:  + AcidP:  neg Esterase(C4):  + EstLip(C8):  + Lipase(C14):  +
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  neg Indole:  + Pigment:  yellow
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    ampicillin:  R(25; disc)
    kanamycin:  R(30; disc)
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    tetracycline:  S(30; disc)
    chloramphenicol:  S(30; disc)
    polymyxin_B:  S(300U)

    References

    SPECIFIC REFERENCES FOR VIBRIO NEPTUNIUS
  • Thompson2003a - Vibrio neptunius sp. nov., Vibrio brasiliensis sp. nov. and Vibrio xuii sp. nov., isolated from the marine aquaculture environment (bivalves, fish, rotifers and shrimps).
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR VIBRIO NEPTUNIUS
  • 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.
  • ...............................
    • Added: January 19, 2022