Bacillus mycoides
on TY agar

Bacillus mycoides

  • General information

    • the following information is not yet verified
      Genetic evidence supports the recognition of members of the Bacillus cereus group as one species, but practical considerations argue against such a move.

      Bacillus mycoides is distinguished by its characteristic rhizoid colonies and absence of motility.

      Family: Bacillaceae
      Bacillus cereus group: B.anthracis, B.cereus, B.mycoides, B.thuringiensis

      Natural habitats
      Spores are widespread, soil, water, air foods etc

      Clinical significance
      Is a pathogen of humans (and other animals), causing foodborne illness.

  • Gram stain

    • the following information is not yet verified
      Large Gram negative, rarely positive or variable rods

      1.0-1.2 x 3.0-5.0 µm
      (only B.cereus group + B.megaterium >1 µm)

      The bacilli tend to occur in chains

      Spore shape: ellipsoidal
      Spore position: central, paracentral or subterminal
      Sporangium swollen: negative

      Capsule: not present

  • Culture characteristics

    • the following information is not yet verified

      Facultative anaerobic

      Colonies are white to cream, opaque and characteristically rhizoid, adherent and ß-hemolytic.

      BBAØ growth

  • Characteristics

  • References

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