Clostridium sporogenes

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Gram stain Culture

General information
- Taxonomy
  Family: Clostridiaceae
  
  Natural habitats
  Ubiquitous in nature. Isolated from soil, marine and fresh water lake sediment, preserved meat and dairy products and in feces
  
  Clinical significance.
  Infections in humans including bacteremia, infective endocarditis, central nervous system and pleura pulmonary infections, abscesses, war wounds and other pyogenic infections.
  
  Although C. sporogenes is isolated from infections, these infections are usually polymicrobial and the roll, if any, of this species as a pathogen in such infections has not been established
Gram stain
- Gram positive, straight rods,
  
  0.3-1.4 x 1.3-16.0 µm,
  
  occur singly and many free oval spores
  
  Spores oval / subterminal
  Swelling of the cell positive
Culture characteristics
- Obligate anaerobic
  
  BBAØ: colonies are 2-6 mm in diameter, usually beta-hemolytic, circular to irregular and a coarse rhizoid margin, semiopaque/opaque, have a raised yellowish-gray center and a flattened periphery compsed of entangled filaments (“medusa head” colony), matt surface, firmly adherent to the agar and possible swarming.
Characteristics
References
- James Versalovic et al.(2011) Manual of Clinical Microbiology 10th Edition