Mesorhizobium loti

(aka Rhizobium loti)

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

Overview

  • Mesorhizobium loti, (aka Rhizobium loti), is a Gram-negative, non-spore-forming, aerobic, motile, rod-shaped bacterium. It has been detected in at least 2 gut microbiome compilation studies or metastudies. The DNA G+C content is 59–64%. Mesorhizobium loti is probably a rare gut coloniser. (Hameed2015; Jarvis1997; Chen2005Bergey; Jarvis1982)



  • This organism has been recovered from human faeces, and plant symbiosis. 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. A possible gut commensal.
    • GENERAL CHARACTERISTICS (Hameed2015); (Jarvis1997); (Chen2005Bergey); (Jarvis1982);
    Character Response
  • 🧂
  • Salt tolerance:
  • tolerates 2.0% salt; doesn't tolerate 3% salt;
  • pH
  • Acidity tolerance:
  • tolerates pH 4.2; tolerates pH 6.0-8.0; tolerates pH 10;
  • 🌡
  • Temperature tolerance:
  • grows at 39℃; doesn't grow at 42℃;
  • ⥅
  • Substrates assimilated or utilised:
  • arabinose; L-arabinose; dulcitol; fructose; fucose; D-fucose; galactose; glucose; inositol; lactose; maltose; rhamnose; sucrose; trehalose; xylose; proline; fumarate; L-malate; D-malate;
  • ±
  • Strain-dependent substrate utilisation:
  • erythritol; raffinose; β-alanine; ornithine;
  • Active enzymes:
  • acid phosphatase; esterase C4; esterase lipase C8; α-glucosidase; Leu arylamidase;
    • SPECIAL FEATURES (Hameed2015); (Jarvis1997); (Chen2005Bergey); (Jarvis1982);
    Character Response
  • ✓
  • Metabolites produced:
  • acetate;
  • ✗
  • Metabolites not produced:
  • indole;
  • ✗
  • Nitrate:
  • not reduced
    • RESPONSE TO ANTIBIOTICS (Chen2005Bergey);
    Class Active Resistant
  • Macrolides:
  • erythromycin;
  • Aminoglycosides:
  • kanamycin; streptomycin;
  • Miscellaneous antibiotics:
  • polymyxin B;

  • McLaughlin, S. D., Walker, A. W., Churcher, C., Clark, S. K., Tekkis, P. P., Johnson, M. W., Parkhill, J., Ciclitira, P. J., Dougan, G., Nicholls, R. J., & Petrovska, L. (2010). The bacteriology of pouchitis: a molecular phylogenetic analysis using 16S rRNA gene cloning and sequencing. Annals of Surgery, 252(1), 90–98.

    • Details

    GENERAL
    Lineage Physiology General Growth Tolerances Hydrol./digest./degr.
    Phylum:  Proteobacteria Class:  Alphaproteobacteria Order:  Hyphomicrobiales Family:  Phyllobacteriaceae Genus:  Mesorhizobium Alt. name:  Rhizobium loti Gram stain:  neg O2 Relation.:  aerobic Spore:  No spore Motility:  Swimming Morphology:  Rod
    Health:  Unknown
    Source:  human faeces, and plant symbiosis
    DNA G+C(%):  59–64
    Mid T(℃):  39(+)
    High T(℃):  42(neg)
    NaCl 0.5-2%:  2.0(+)
    NaCl 3-5%:  3(neg)
    pH 4.2-5.9:  4.2(+)
    pH 6.0-8.0:  6.0-8.0(+)
    pH >8:  10(+)
    		Aesculin:  neg Urea:  neg Gelatin:  neg Starch:  neg Casein:  neg Chitin:  neg DNA:  neg Tyrosine:  neg
    CARBOHYDRATE ACID FORMATION
    Monosaccharide O/F Oligosaccharide O/F Polysaccharide O/F Polyol O/F Other O/F
    Glucose:  neg
    SUBSTRATE ASSIMILATION & UTILISATION
    Monosaccharide util/assim Oligosaccharide util/assim Other carboh. util/assim Amino acid util/assim Organic acid util/assim
    Arabinose:  + L-Arabinose:  + Fructose:  + Fucose:  + D-Fucose:  + Galactose:  + Glucose:  + Mannose:  neg Rhamnose:  + Xylose:  + Lactose:  + Maltose:  + Raffinose:  d Sucrose:  + Trehalose:  + N_Acetyl_glucosamine:  neg Dulcitol:  + Erythritol:  d Gluconate:  neg Inositol:  + Mannitol:  neg β-Ala:  d Asp:  neg Orn:  d Pro:  + Adipate:  neg Caprate:  neg Citrate:  neg Fumarate:  + L-Malate:  + Phenylacetate:  neg
    ENZYME ACTIVITY
    Enzymes: General Enzymes: Carbohydrate Enzymes: Protein Enzymes: Arylamidases Enzymes: Esters/fats
    Oxidase:  neg Catalase:  neg Urease:  neg Ac-β-glcamnd:  neg α-Fucosidase:  neg α-Galactosidase:  neg β-Galactosidase:  neg α-Glucosidase:  + β-Glucosidase:  w β-Glucuronidase:  neg α-Mannosidase:  neg ArgDH:  neg Chymotrypsin:  neg Trypsin:  neg CystineAA:  neg LeuAA:  + ValAA:  neg AlkalineP:  w AcidP:  + Esterase(C4):  + EstLip(C8):  + Lipase(C14):  neg
    METABOLITES - PRODUCTION & USE
    Fuel Usable Metabolites Metabolites Released Special Products Compounds Produced

    		Acetate:  + Indole:  neg
    ANTIBIOTICS ℞
    Penicillins & Penems (μg/mL) Cephalosporins (μg/mL) Aminoglycosides (μg/mL) Macrolides (μg/mL) Quinolones (μg/mL)
    kanamycin:  Res
    streptomycin:  Res
    erythromycin:  Res
    Tetracyclines (μg/mL) Vancomycin Class (μg/mL) Polypep/ketides (μg/mL) Heterocycles (μg/mL) Other (μg/mL)
    polymyxin_B:  Res

    References

    SPECIFIC REFERENCES FOR MESORHIZOBIUM LOTI
  • Hameed2015 - Oricola cellulosilytica gen. nov., sp. nov., a cellulose-degrading bacterium of the family Phyllobacteriaceae isolated from surface seashore water, and emended descriptions of Mesorhizobium loti and Phyllobacterium myrsinacearum.
  • Jarvis1997 - Transfer of Rhizobium loti, Rhizobium huakuii, Rhizobium ciceri, Rhizobium mediterraneum, and Rhizobium tianshanense to Mesorhizobium gen. nov.
  • Chen2005Bergey - Bergey's manual of systematic bacteriology. Vol. 2, The Alpha-, Beta-, Delta-, and Epsilonproteobacteria Part C. Family Phyllobacteriaceae, Genus VI. Mesorhizobium
  • Jarvis1982 - Rhizobium loti, a New Species of Legume Root Nodule Bacteria.
  • ...............................
    • GUT MICROBIOME COMPILATIONS AND METASTUDIES FOR MESORHIZOBIUM LOTI
  • 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