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Ralstonia pickettii

  • General information


    • Taxonomy
      Family: Burkholderiaceae
      Formerly Burkholderia

      Natural habitat
      They are found in moist environments such as soils, on plants, fruits and vegetables.
      Because they survive in a moist environment, they can cause problems in a hospital.

      Be isolated from CF patients.

      Clinical significance
      They are rarely found as a cause of infection.
      The bacteria has seriously affected humans with poor health.
      Several hospitals have reported outbreaks, in particular, patients with cystic fibrosis and Crohn’s Disease have been shown to be infected R. pickettii

      They can cause pneumonia, meningitis, endocarditis, osteomyelitis, bacteremia and nosocomial infections.

  • Gram stain

    • Gram-negative rods.

      0.1-0.5 x 1.0-5.0 µm

  • Culture characteristics

    • Obligate Aerobic

      BA: grows slowly in primary isolations (> -72 hours), they have no characteristic morphology.

      After 24 hours, very small colonies.

      Yellow pigment is variable (36%)

      McConkey: growth, non lactose fermenter
      (McC with salt: 50% growth)

      BBAØ: no growth

      Warning:
      Phenotypically R. pickettii is easily confused with members of the group Pseudomonas fluorescens, and the Burkholderia cepacia complex.

  • Characteristics

  • References

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