Proteus Vulgaris
...growth I could assume that bacteria was present. I then looked at the class results and discovered that Alcaligenes faecalis and Proteus valgaris showed all three of the findings to be true. To be positive about my unknown I performed the last test, the Triple Sugar Iron (TSI). The results to the TSI showed that the unknown did not show fermentation or gas but there was growth present on the slant. By combining that information it was inevitable that the unknown was aerobic. From the data that had been collected as of far, I was convinced my unknown was Alcaligenes faecalis. All of the information proved it to be right. Alcaligenes faecalis was aerobic because it showed growth on the slant but no fermentation or gas production, while Proteus vulgaris was facultative anerobic because it could ferment sugars in anerobic conditions. It showed fermentation by containing a yellow color. As of this far my unknown was Alcaligenes faecalis. To confirm my information I had the instructor check the results for the oxidase test and the TSI test. My unknown proved to be negative for the oxidase test and showed fermentation and gas to be present on the TSI test. This information was opposite from that of Alcaligenes faecalis. Both of the test results showed positive signs for the unknown to be Proteus vulgaris. Once the instructor told me the results of the TSI test I double checked online (http://www.heilos.bto.ed) and confirmed the unknown to be Proteus vulgaris. All of the tests I performed were inaccurate and false. I could have improved the readings by using aseptic techniques and repeating them another time for accuracy. The test that helped in my decision was the results of the TSI test that the instructor provided. While researching to find my unknown I found many interesting fact on Proteus vulgaris. This disease is the member of the Enterbacteriaceae family meaning it is enteric bacteria (http://www.heilos.bto.ed). Enteric bacteria is rod-shaped gram-negative bacteria. Most occur normally or pathogenically in intestines of humans and other animals (http://www.heilos.bto.ed). Some enterics are major pathogens of humans, but the Proteus species are mainly found in the soil, water and fecally contaminated material, particularly in decomposing org...