Treuperella pyogenes

  • General information

    • the following information is not yet verified
      General information
      The genus name Trueperella has been proposed in honor of the German microbiologist Hans Georg Trüper.

      Family: Actinomycetaceae
      previously: Actinomyces pyogenes, Arcanobacterium pyogenes

      Natural habitats
      They are not part of the normal flora of humans, but they are part of the normal flora of animals and also cause infections there

      Clinical significance
      T. pyogenes may cause pyogenische infections in animals.

      Flies for the transmission are suspected to be vectors.

      Infections in humans occurs mainly in rural areas; wounds

      Cause of; acute pharyngitis, urethritis, cutane- or subcutaneous abscesses or septic arthritis in a diabetic.

  • Gram stain

    • the following information is not yet verified
      Irregular Gram-positive rods,

      sometimes with branches

  • Culture characteristics

    • the following information is not yet verified

      Facultative anaerobic

      After 24 hours of incubation at CO2, very small colonies with a weak hemolysis.
      After 48 hours of incubation, the colony is 1 mm, with a sharply defined zone of β-hemolysis.

      The protein responsible for hemolysis, pyolysin, in vivo, is also an important virulence factor in vivo

      Trueperella pyogenes looks the same like Arcanobacterium haemolyticum in Gram stain and colony morphology, but T. pyogenes is slightly larger and with more hemolysis

      McConkey no growth

      BBAØ growth

  • Characteristics

  • References

    • James Versalovic et al.(2011) Manual of Clinical Microbiology 10th Edition

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