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Proteus vulgaris on SIM medium Send Print

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Created: Friday, 01 January 2010
Last update: Tuesday, 03 August 2010
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Proteus vulgaris on SIM medium
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FIG. 3. Result of the indole test using sulfur-indole-motility medium and Proteus vulgaris after a 24-hour incubation at 37°C.  A positive indole result is indicated by the red layer at the top of the tube after the addition of Kovács reagent. Note the tube is positive for motility as indicated by hazy growth throughout and positive for hydrogen sulfide production as indicated by the black precipitate in the butt of the tube. (Anne Hanson, University of Maine, Orono, ME)