Mameliella alba

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

Overview

  • Mameliella alba is a Gram-negative, non-spore-forming, facultatively anaerobic, non-motile, rod-shaped bacterium. It has been detected in at least 1 gut microbiome compilation study or metastudy. The DNA G+C content is 63.7%. Mameliella alba is likely to be transient and not a long-term gut coloniser. (Liu2018b; Zheng2010)



  • This organism has been recovered from surface sea water, China. Pathogenicity status unknown, or very unlikely to be pathogenic. Likely to be transient and not a long-term gut commensal.
    • GENERAL CHARACTERISTICS (Liu2018b); (Zheng2010);
    Character Response
  • Substrates hydrolysed or digested:
  • aesculin; urea;
  • ±
  • Strain-dependent hydrolysis or digestion:
  • gelatin;
  • 🧂
  • Salt tolerance:
  • tolerates 0% salt; tolerates 15% salt; Grows optimally with 1-5% salt.
  • pH
  • Acidity tolerance:
  • tolerates pH 5.0; tolerates pH 11; Grows optimally at pH 7-8.
  • 🌡
  • Temperature tolerance:
  • grows at 4℃; grows at 50℃; Grows optimally at 25-37℃.
  • H+
  • Acid from carbohydrates usually produced:
  • maltose; trehalose;
  • ⥅
  • Substrates assimilated or utilised:
  • L-arabinose; cellubiose; gluconate; glucose; glycerol; inositol; maltose; mannitol; mannose; sorbitol; sucrose; trehalose; alanine; arginine; acetate; adipate; lactate; L-malate; malonate;
  • ±
  • Strain-dependent substrate utilisation:
  • citrate; phenylacetate;
  • Active enzymes:
  • alkaline phosphatase; acid phosphatase; cystine arylamidase; esterase C4; esterase lipase C8; β-galactosidase; β-glucosidase; Leu arylamidase; lipase C14; urease; Val arylamidase; naphthol-ASBI-P;
  • ±
  • Strain-dependent active enzymes:
  • catalase; oxidase;
    • SPECIAL FEATURES (Liu2018b); (Zheng2010);
    Character Response
  • ✗
  • Metabolites not produced:
  • H₂S; indole;
  • ✗
  • Methyl red test:
  • not active
  • ✓
  • VP test:
  • active
  • ✓
  • Nitrate:
  • reduced
  • ±
  • Nitrite:
  • strain dependent
    • RESPONSE TO ANTIBIOTICS (Zheng2010);
    Class Active Resistant
  • Penicillins:
  • ampicillin;
  • Cephalosporins:
  • cefoperazone;
  • Quinolines:
  • ciprofloxacin;
  • Aminoglycosides:
  • gentamicin; streptomycin;
  • Heterocycles:
  • chloramphenicol;
  • Miscellaneous antibiotics:
  • clindamycin;

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Alphaproteobacteria Order:  Rhodobacterales Family:  Roseobacteraceae Genus:  Mameliella Gram stain:  neg O2 Relation.:  facultatively anaerobic Spore:  No spore Motility:  Sessile Morphology:  Rod
    Health:  Unknown
    Source:  surface sea water, China
    DNA G+C(%):  63.7
    Opt. T:  25-37℃
    Low T(℃):  4(+)
    High T(℃):  50(+)
    NaCl 0.5-2%:  0(+)
    NaCl >6%:  15(+)
    Opt. pH:  7-8
    pH 4.2-5.9:  5.0(+)
    pH >8:  11(+)
    		Aesculin:  + Urea:  + Gelatin:  d Starch:  neg Casein:  neg Tween:  80(neg)
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Arabinose:  neg Glucose:  neg Rhamnose:  neg Maltose:  + Melibiose:  neg Sucrose:  neg Trehalose:  + Amygdalin:  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:  + Fructose:  neg Glucose:  + Mannose:  + Sorbose:  neg Xylose:  neg Cellubiose:  + Lactose:  neg Maltose:  + Sucrose:  + Trehalose:  + N_Acetyl_glucosamine:  neg Gluconate:  + Glycerol:  + Inositol:  + Mannitol:  + Sorbitol:  + Ala:  + Arg:  + Gly:  neg Lys:  neg Thr:  neg Acetate:  + Adipate:  + Caprate:  neg Citrate:  d Lactate:  + L-Malate:  + Malonate:  + Phenylacetate:  d
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  d Catalase:  d Urease:  + Ac-β-glcamnd:  neg α-Fucosidase:  neg α-Galactosidase:  neg β-Galactosidase:  + α-Glucosidase:  neg β-Glucosidase:  + β-Glucuronidase:  neg α-Mannosidase:  neg ArgDH:  neg Chymotrypsin:  neg LysDC:  neg OrnDC:  neg Trypsin:  neg TrpAA:  neg CystineAA:  + LeuAA:  + ValAA:  + AlkalineP:  + AcidP:  + Esterase(C4):  + EstLip(C8):  + Lipase(C14):  +
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		H2S:  neg Indole:  neg
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    ampicillin:  Sens
    cefoperazone:  Sens
    gentamicin:  Sens
    streptomycin:  Sens
    ciprofloxacin:  Sens
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    chloramphenicol:  Sens
    clindamycin:  Sens

    References

    SPECIFIC REFERENCES FOR MAMELIELLA ALBA
  • Liu2018b - Reclassification of Mameliella phaeodactyli, Mameliella atlantica, Ponticoccus lacteus and Alkalimicrobium pacificum as later heterotypic synonyms of Mameliella alba and an emended description of Mameliella alba.
  • Zheng2010 - Mameliella alba gen. nov., sp. nov., a marine bacterium of the Roseobacter clade in the order Rhodobacterales.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR MAMELIELLA ALBA
  • New2022 - Collective effects of human genomic variation on microbiome function.
  • ...............................
    • Added: March 18, 2022