Photorhabdus Species: Bioluminescent Bacteria as Human Pathogens?
John G. Gerrard* , Samantha McNevin†, David Alfredson*, Ross Forgan-Smith†, and Neil Fraser‡
Author affiliations: *Gold Coast Hospital, Southport, Queensland, Australia; †Queensland Medical Laboratory, West End, Queensland, Australia; ‡Harbour City Family Practice, Gladstone, Queensland, Australia
Figure 1. Photorhabdus isolate from patient 2, growing on tryptic soy agar containing 5% sheep blood, after 48 hours’ incubation at 35°C. Arrows indicate “swarming.” The colonies could be seen to glow faintly with the naked eye under conditions of total darkness after 10 minutes of adjustment.
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