Shewanella putrefaciens

  • General information

    • the following information is not yet verified
      Family: Shewanellaceae
      Formerly: Pseudomonas Malitof apathogenic: S. baltica, S. fidelis, S. frigidimarina, S. profunda

      Natural habitat:
      In the environment and in food products, does not belong to the normal flora of the human being.
      - S.algae occurs in the vicinity of salt water
      - S.putrefaciens isolated from fish, chicken, meat, fresh and saltwater.

      Clinical significans
      Clinical significance unknown.
      Is often found in mixed cultures. In cellulitis, otitis media, skin and soft tissue infections, peritonitis, respiratory- and urinary tract infections S. algae is most commonly isolated in humans
      > 80% (Note errors) and is considered to be more virulent than S. putrefaciens

  • Gram stain

    • the following information is not yet verified
      Gram-negative rods.

  • Culture characteristics

    • the following information is not yet verified

      Obligate Aeroob BA: convex, smooth and sometimes mucoid colonies with yellow / brown - brown pigment and give a green discoloration of the bloodagar.
      - S. algae is always hemolytic (after 48-72 hours), it can be mucoid
      - S. putrefaciens, is usually not- haemolytic and not mucoid

      McConkey: growth, non lactose fermenter

      BBAØ: no growth

      Warning!!!!!! As the two species seem to have different potential for humans, correct identification is important.

  • Characteristics

  • References

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