ID#: 6648
Caption:
This photograph depicts Salmonella sp. bacteria that had been cultured in a tetrathionate-enrichment broth, and stained using the direct fluorescent-antibody (DFA) technique. Tetrathionate-enrichment broth contains bile salts, thereby, inhibiting the growth of Gram-positive organisms, while Gram-negative, Salmonella sp. bacteria, being organisms that possess the enzyme tetrathionate reductase, are able to break down tetrathionate, and grow uninhibited.
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Content Provider(s): CDC
Creation Date: 1980
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.