Prevotella oris (Seggatella oris)

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Gram stain Culture

General information
- Taxonomy
  Family: Prevotellaceae
  Genus: Seggatella oris
  Formely: Prevotella oris
  
  Natural habitats
  Belong to the normal flora of the oropharynx, gastrointestinal tract, the genitals and urinary tract.
  
  Clinical significance
  Prevotella species are among the dominating microorganisms of the oral cavity, where they, despite their commensalism, can be involved in nearly all types of oral infections.
  
  They are found in the mouth, pleural-, lung- and other infections and they are typical polymicrobial infections
Gram stain
- Gram negative coccobacilli or bacilli,
  
  evenly colored with rounded ends,
  
  which often occur in pairs or short chains.
  
  Liquid medium
  the bacteria can be more polymorphic, longer and have vacuoles
Culture characteristics
- Obligate anaerobic
  
  BBAØ: colonies are white to gray, round, convex, translucent with a smooth edge and non hemolytic
  
  BBEØ: no growth
  
  Fluorescentie/Woodslamp: no fluorescence
Characteristics
References
- James Versalovic et al.(2011) Manual of Clinical Microbiology 10th Edition