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Actinomyces odontolyticus

  • General information

    • the following information is not yet verified
      Actinomycosis, caused by Actinomyces israelii, less frequent by Actinomyces odontolyticus.

      Taxonomy
      Family: Actinomycetaceae,

      Natural habitats
      As with all other actinomycotic diseases, A. odontolyticus is an endogenous infection arising from the mucous membranes

      Clinical significance
      Clinical disease in patients with A. odontolyticus closely resembles disease caused by A. israelii and other actinomyces species.

      Infections by A. odontolyticus primarily involve the cervicofacial regions, the chest, abdomen, and pelvis with rare involvement of the central nervous system, bones, and joints

  • Gram stain

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

      diphtheroid and may be arranged in palisades or

      thin filamental and pleomorphic, which are 0.4–1.0 μm wide.

      The filaments may be up to 50 μm in length with true branching.

  • Culture characteristics

    • the following information is not yet verified

      Facultative anaerobic

      On blood agar, colonies are small, irregular, whitish and smooth to slightly granular and show a dark red pigment when mature (2–14 days).

      This pigmentation is most obvious when the cultures are left standing in air at room temperature after primary anaerobic isolation.

      BBAØ growth

  • Characteristics

  • References

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


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