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ID#:6710
Description:This photograph depicts the colonial growth pattern displayed by the Gram-negative enteric bacterium Yersinia enterocolitica cultivated on this triple sugar iron agar (TSI) medium.
TSI is used when differentiating bacteria, primarily from the family Enterobacteriaceae, according to their ability to ferment glucose, lactose or sucrose, as well as produce hydrogen sulfide, (H2S). If a yellow coloration results (Rt), it means that there was ongoing fermentation while if a reddish color results (Lt), it means that there was no fermentation taking place.
High Resolution: Click here for hi-resolution image (6.25 MB)
Content Providers(s):CDC
Creation Date:1976
Photo Credit:
Links:CDC - Division of Bacterial and Mycotic Diseases – Yersinia enterocolitica
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.

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