File:Cdc stab culture.png
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editDescriptionCdc stab culture.png |
English: This photograph depicts three test tubes, each containing a motility medium with triphenyl tetrazolium chloride (TTC), as a growth indicator. The far left tube was inoculated with an ATCC control strain of non-motile Staphylococcus bacteria, and incubated for a 24 hour time period. The middle tube was inoculated with an ATCC control strain for non-pathogenic, motile, Escherichia coli bacteria, and also incubated for a 24 hour time period. The far right tube was also inoculated with the ATCC control strain for non-pathogenic, motile, Escherichia coli bacteria, but allowed to grow for a 5-day time period, which allowed for the bacterial swarm, in order to represent what would happen had Salmonella enterica serovar Typhimurium bacteria been used in place of the E. col.
Additional Information: You’re able to see that the organisms in tube #1, i.e., non-motile Staphylococcus, remained affixed to the tract, and fracture lines formed by the inoculating needle, upon their introduction to the motility medium. While those organisms in tube #2, i.e., motile E, coli, are seen to have begun migrating away from the needle tract, out into the surrounding medium. Finally, those organisms in tube #3, again motile E. coli, were permitted to migrate throughout the tube, given their 5-day, elongated incubation period. |
Date | |
Source |
https://phil.cdc.gov/Details.aspx?pid=22205 Centers for Disease Control and Prevention Public Health Image Library |
Author | Todd Parker, Ph.D., Assoc Director for Laboratory Science, Div of Preparedness and Emerging Infections at CDC |
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editPublic domainPublic domainfalsefalse |
This image is a work of the Centers for Disease Control and Prevention, part of the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain.
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current | 23:01, 8 April 2018 | 1,345 × 852 (835 KB) | Barbara (WVS) (talk | contribs) | User created page with UploadWizard |
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