Recent taxonomic changes in the genusEnterococcus

  • K. L. Ruoff
Current Topic: Review


Recent taxonomic changes among the catalase-negative gram-positive cocci have led to the recognition of a separate genus for bacteria previously considered to be members of the genusStreptococcus. Presently, a total of 12 species of the genusEnterococcus have been described. The characteristics, taxonomy and nomenclature of these species, along with the possible clinical implications of revised enterococcal taxonomy, are discussed.


Internal Medicine Clinical Implication Separate Genus Taxonomic Change Recent Taxonomic Change 
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  1. 1.
    Facklam R, Hollis D, Collins MD: Identification of gram-positive coccal and coccobacillary vancomycin-resistant bacteria. Journal of Clinical Microbiology 1989, 27: 724–730.Google Scholar
  2. 2.
    Schleifer KH, Kilpper-Bälz R: Molecular and chemotaxonomic approaches to the classification of streptococci, enterococci and lactococci: a review. Systematic and Applied Microbiology 1987, 10: 1–19.Google Scholar
  3. 3.
    Sherman, JM: The streptococci. Bacteriological Reviews 1937, 1: 3–97.Google Scholar
  4. 4.
    Facklam RR, Thacker LG, Fox B, Eriquez L: Presumptive identification of streptococci with a new test system. Journal of Clinical Microbiology 1982, 15: 987–990.Google Scholar
  5. 5.
    Farrow JAE, Jones D, Phillips BA, Collins MD: Taxonomic studies on some group D streptococci. Journal of General Microbiology 1983, 129: 1423–1432.Google Scholar
  6. 6.
    Ludwig W, Seewaldt E, Kilpper-Bälz R, Schleifer KH, Magrum L, Woese CR, Fox GE, Stackebrandt E: The phylogenetic position ofStreptococcus andEnterococcus. Journal of General Microbiology 1985, 131: 543–551.Google Scholar
  7. 7.
    Schleifer KH, Kilpper-Bälz R: Transfer ofStreptococcus faecalis andStreptococcus faecium to the genusEnterococcus nom. rev. asEnterococcus faecalis comb. nov. andEnterococcus faecium comb. nov. International Journal of Systematic Bacteriology 1984, 34: 31–34.Google Scholar
  8. 8.
    Kalina P: The taxonomy and nomenclature of enterococci. International Journal of Systematic Bacteriology 1970, 20: 185–189Google Scholar
  9. 9.
    Collins MD, Facklam RR, Farrow JAE, Williamson R:Enterococcus raffinosus sp. nov.,Enterococcus solitarius sp. nov. andEnterococcus pseudoavium sp. nov. FEMS Microbiology Letters 1989, 57: 283–288.Google Scholar
  10. 10.
    Collins MD, Farrow JAE, Jones D:Enterococcus mundtii sp. nov. International Journal of Systematic Bacteriology 1986, 36: 8–12.Google Scholar
  11. 11.
    Collins MD, Jones D, Farrow JAE, Kilpper-Bälz R, Schleifer KH:Enterococcus avium nom. rev., comb. nov.;Enterococcus casseliflavus nom. rev., comb. nov.;Enterococcus durans nom. rev., comb. nov.;Enterococcus gallinarum comb. nov.; andEnterococcus malodoratus sp. nov. International Journal of Systematic Bacteriology 1984, 34: 220–223.Google Scholar
  12. 12.
    Farrow JAE, Collins MD:Enterococcus hirae, a new species that includes amino acid assay strain NCDO 1258 and strains causing growth depression in young chickens. International Journal of Systematic Bacteriology 1985, 35: 73–75.Google Scholar
  13. 13.
    Jones D: Composition and differentiation of the genusStreptococcus. In: Skinner FA, Quesnel LB (ed.): Streptococci. Academic Press, New York, 1978, p. 1–49.Google Scholar
  14. 14.
    Facklam RR, Collins MD: Identification ofEnterococcus species isolated from human injections by a conventional test scheme. Journal of Clinical Microbiology 1989, 27: 731–734.Google Scholar
  15. 15.
    Bridge PD, Sneath PHA: Numerical taxonomy ofStreptococcus. Journal of General Microbiology 1983, 129: 565–597.Google Scholar
  16. 16.
    Jones D, Sackin MJ, Sneath PHA: A numerical taxonomic study of streptococci of group D. Journal of General Microbiology 1972, 72: 439–450.Google Scholar
  17. 17.
    Nowlan SS, Deibel RH: Group Q streptococci. I. Ecology, serology, physiology, and relationship to established enterococci. Journal of Bacteriology 1967, 94: 291–296.Google Scholar
  18. 18.
    Gross KC, Houghton MP, Senterfit LB: Presumptive speciation ofStreptococcus bovis and other group D streptococci from human sources by using arginine and pyruvate tests. Journal of Clinical Microbiology 1975, 1: 54–60.Google Scholar
  19. 19.
    Mundt JO, Graham WF:Streptococcus faecium var.casseliflavus, nov. var. Journal of Bacteriology 1968, 95: 2005–2009.Google Scholar
  20. 20.
    Vaughn DH, Riggsby WS, Mundt JO: Deoxyribonucleic acid relatedness of strains of yellow-pigmented group D streptococci. International Journal of Systematic Bacteriology 1979, 29: 204–212.Google Scholar
  21. 21.
    Amstein EF, Hartman PA: Differentiation of some enterococci by gas chromatography. Journal of Bacteriology 1973, 113: 38–41.Google Scholar
  22. 22.
    Bridge PD, Sneath PHA:Streptococcus gallinarum sp. nov. andStreptococcus oralis sp. nov. International Journal of Systematic Bacteriology 1982, 32: 410–415.Google Scholar
  23. 23.
    Kaplan AH, Gilligan PH, Facklam RR: Recovery of resistant enterococci during vancomycin prophylaxis. Journal of Clinical Microbiology 1988, 26: 1216–1218.Google Scholar
  24. 24.
    Moellering RC Jr., Korzeniowski OM, Sande MA, Wennersten, CB: Species-specific resistance to antimicrobial synergism inStreptococcus faecium andStreptococcus faecalis. Journal of Infectious Diseases 1979, 140: 203–208.Google Scholar
  25. 25.
    Facklam R, Bosley GS, Rhoden D, Franklin AR, Weaver N, Schulman R: Comparative evaluation of the API 20S and AutoMicrobic gram-positive identification systems for non-beta-hemolytic streptococci and aerococci. Journal of Clinical Microbiology 1985, 21: 535–541.Google Scholar
  26. 26.
    Facklam RR, Rhoden DL, Smith PB: Evaluation of the Rapid Strep System for the identification of clinical isolates ofStreptococcus species. Journal of Clinical Microbiology 1984, 20: 894–898.Google Scholar
  27. 27.
    Colman G, Ball LC: Identification of streptococci in a medical laboratory. Journal of Applied Bacteriology 1984, 51: 1–14.Google Scholar
  28. 28.
    Facklam RR: Recognition of group D streptococcal species of human origin by biochemical and physiological tests. Applied Microbiology 1972, 23: 1131–1139.Google Scholar
  29. 29.
    Parker MT, Ball LC: Streptococci and aerococci associated with systematic infections in man. Journal of Medical Microbiology 1976, 9: 275–302.Google Scholar

Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1990

Authors and Affiliations

  • K. L. Ruoff
    • 1
    • 2
  1. 1.Francis Blake Bacteriology LaboratoriesMassachusetts General HospitalBostonUSA
  2. 2.Department of Microbiology and Molecular GeneticsHarvard Medical SchoolBostonUSA

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