Essay on Escherichia Coli and Gram Stain Test

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Finding my Unknown in a Sea of Unknowns

Unknown “D”
Ryan Hoover
April 30, 2014

Ms. B

Microbiology

Spring 2014

There are many different reasons for finding the name of a microorganism. The reasons to find the name range from finding out what the microorganism does and to research and develop a cure for a harmful microorganism, to knowing the correct microorganism when used for foods or medicines. This study included all of the tests and results that have been learned in the microbiology laboratory class up to this point.

The class was all given a list of unknowns, and they all had to find out what their unknown was. There were many choices in which to decipher including: Citrobacter freundii-, which is a rod, shaped bacteria usually found in habitats including the environment (water, soil, sewage,) intestinal tracts of animals and humans. C. freundii is Gram negative and it can cause one to have a UTI infection. 25 Apr. 2014. http://genome.wustl.edu/genomes/detail/citrobacter-diversus-koseri/. Citrobacter koseri- rod, shaped bacteria that usually arises from the urinary/gastrointestinal tract. C. koseri exists in water, sewage, soil, and in humans and animals. 25 Apr. 2014. http://genome.wustl.edu/genomes/detail/citrobacter-diversus-koseri/. Enterobacter aerogenes- is a gram negative, rod shaped bacteria that grows and lives in human and animal wastes and also soil, water etc. 25, Apr. 2014. http://antimicrobialcopper.com/us/scientific-proof/registration-against-bacteria/enterobacter-aerogenes.aspx. Enterobacter cloacae- Gram negative, rod shaped bacteria found in mesophillic environments (lower respiratory system, UTI tract.) 25 Apr. 2014. http://microbewiki.kenyon.edu/index.php/Enterobacter_cloacae. Esherichia Coli, better known as E. coli causes bloody diarrhea, UTI infections, and is found in the human and animal feces. Also found in raw meets. 25 Apr. 2014. http://www.webmd.com/a-to-z-guides/e-coli-infection-topic-overview. Hafinia alvei- a gram-negative, rod-shaped bacterium mostly found in babies stool samples. 25 Apr. 2014. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC257869/. Klebsiells pneumonia- is a gram-negative rod shaped bacterium and is also anaerobic and found in the nasopharynix. 25 Apr. 2014. https://microbewiki.kenyon.edu/index.php/Klebsiella_pneumoniae. Morganella morganii- is a gram-negative rod shaped bacterium its environment includes the intestinal tract of humans and animals. 25 Apr. 2014. http://emedicine.medscape.com/article/222443-overview. Proteus mirabilas- Gram negative, also rod shaped, and causes UTI infections. 25 Apr. 2014. http://emedicine.medscape.com/article/226434-overview. Proteus vulgaris- Gram-negative rod shaped bacterium that lives in the human intestinal tract, soil, water, and in plants. 25 Apr. 2014. https://www.sunysccc.edu/academic/mst/microbes/17pvulg.htm. Providencia alcalifaciens- Rod-shaped Gram negative bacterium that causes diarrhea and is within the gastrointestinal tract. 25 Apr. 2014. http://microbewiki.kenyon.edu/index.php/Providencia_alcalifaciens. Providencia Stuartii- Rod shaped gram-negative bacteria that cause UTI infections and gastrointestinal infections. Arises in the human and animal intestinal tract. 25 Apr. 2014. http://www.ncbi.nlm.nih.gov/pubmed/3081988. Salmonella enterica- Rod shaped gram-negative bacteria found in humans and animals. S. enterica is also a flagellated bacterium. 25. Apr. 2014. http://microbewiki.kenyon.edu/index.php/Salmonella_enterica_NEU2011. Serratia liquefaciens- Straight rod shaped, gram negative, aerobic and anaerobic living bacterium. Lives in soil, water, plants etc. 25 Apr. 2014. http://microbewiki.kenyon.edu/index.php/Serratia_liquefaciens. Serratia marcenscents- short rod shaped gram-negative bacteria. Lives in anaerobic environments like humans and animals. 25 Apr. 2014. https://microbewiki.kenyon.edu/index.php/Serratia_marcescens. Shigella flexneri- Rod shaped gram-negative that causes bloody
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