After all that testing in 5 short (long) days, we were able to conclude what our unknown "K" bacteria was! One of the first tests done at the beginning of the semester was to perform the gram stain. Our gram stain revealed that our bacteria was gram negative. Under the microscope, our bacteria were rod-shaped tiny bacteria. These two little observations allowed us to narrow what our unknown bacteria was. After all the tests were done and analyzed as discussed in previous blogs, we were able to conclude what the unknown bacteria was.
We followed the flow chart and using our results, we followed these steps:
1.) Gram- Negative (that eliminated many bacteria)
2.) Lactose: positive (what could it be?!)
3.) Indole: positive (Oh no!)
4.) Citrate: negative.... (WAIT FOR IT...)
Escherichia coli!!!!
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| The chart we used to identify |
That's all, folks!
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