Microbiology

1. The biggest potential source of contamination of the locations we tested in the Distribution of Microorganisms would have to be the floor of the lab. The reason why this is the biggest potential source of contamination is because multiple people are coming in everyday from the outside world, bringing in microorganisms from the outside into the lab. And although we sanitize the counter and all the spaces that we work around, we don’t take precautions to necessarily clean the floor, making it…

pathogens, Salmonella enterica serovar Typhi.is known as Salmonella Typhi and students could confuse them with any other of the many many forms of Salmonella enterica at first glance. We know this bacterium as the cause of Typhoid. In the world of microbiology, it is known to be gram negative, it does not hold the violet dye in testing. It is both aerobic and anaerobic. In other words, it is a facultative anaerobe. It belongs to the genus Salmonella and the family Enterobacteriaceae and…

with somebody, especially with people on sports teams. This type of MRSA is classified as community-associated methicillin-resistant Staphylococcus aureus or CA-MRSA for short. Diagnosis To diagnose MRSA, a sample is collected and taken to the microbiology lab for testing. If MRSA is detected, the disease should be tested more to figure out which antibiotics would be most effective for treatment. Doctors normally diagnosis MRSA by checking a nasal secretion or tissue sample for signs of…

Interchangeability of the two anthranilate synthase and evolutionary implications. Journal of Bacteriology, 172, pp.884–900. Fothergill, J.L. et al., 2007. Widespread pyocyanin over-production among isolates of a cystic fibrosis epidemic strain. BMC microbiology, 7, p.45. Fuse, K. et al., 2013. Reduction of virulence factor pyocyanin production in multidrug-resistant Pseudomonas aeruginosa. Journal of Infection and Chemotherapy, 19, pp.82–88. Hassan, H.M. & Fridovich, I., 1980. Mechanism of the…

his findings just like Robert Hooke and called the single celled organisms “animalcules”. During his time, Antony not only improved the design of the microscope through his more skillfully constructed lens, but he also contributed to the study of microbiology. His discoveries helped other scientists explain the basis of life and learn more about single celled…

Staphylococcus aureus is responsible for various types of infections including skin and also respiratory tract infections. S.aureus can infect tissue when if the defensive line such as the skin or mucosal barriers had been breached. The infection caused by this bacteria can be spread in different modes such as direct contact from an infected wound, contact with the hyaluronidase, an enzyme produced by the bacteria that destroys tissues or even skin to skin contact with an infected person.…

In this experimental research, to study the antibacterial properties of the extract of Callistemon viminalis, the standard strains of these bacteria, which are common in urinary tract infections, have been prepared in a lyophilized way in the microbiology laboratory of Fasa University of Medical Sciences: Staphylococcus aureus ATCC 25923, Staphylococcus epidermidis ATCC 29212, S.saprophyticus ATCC 15305, Enterococcus fecalis ATCC 29212, Proteus vulgaris PTCC 1079, Klebsiella pneumoniae ATCC…

a transparent derivative. The next test determined that my unknown is positive for catalase. Lastly, the oxidase test resulted in a negative reaction. Meaning that my unknown is not an oxidase-producing microbe. Using Appendix E of the General Microbiology Laboratory lab handbook, I narrowed down the unknown microorganism to Enterobacter aerogenes. Every test matched with my experimental results except for the fermentation of lactose. According to Appendix E, E.aerogenes is able to ferment…

Introduction The Gram stain is a valuable tool to microbiologists in identifying the cell well composition of prokaryotic species. The underlying process revolves around a series of chemical dyes, and their propensity to bind to peptidoglycan polymers in the cell wall. The results allow scientists to infer properties about the outer coating of an organism and is often the first step in identifying an unknown species. For the purpose of our experiment, the results of the Gram stain will be as…

Title The analysis of Mini unknown microbe# 1R Summary A series of tests was done with Microbe #1R for identification. A Gram stain was done it reveal a gram positive cocci result. A streak plate was completed revealing that the microbe was round/filamentous, convex, erose, granular, yellow, and opaque. The next test was the Tryptic Soy Agar plate for color. Followed by the oxidase test and last was the Mannitol Salt Agar test. Thus microbe #1R was Sporosarcina…