Bacillus subtilis

identify the unknown. Unknown #297 was identified to be Bacillus subtilis with the various tests that were conducted. Most of the results that were observed in the laboratory matched the expected results for the bacterium. All of the morphological characteristics results matched expect in one test. There was a discrepancy in the motility test, where the test was observed to be negative. According to Microbewiki2, the test was supposed to be positive. The discrepancy might have been due to the error within the aseptic technique that was performed. When the tube was inoculated the needle might have been too hot, which might’ve killed the bacteria, to cause it to be non-motile. The starch hydrolysis test was observed to be negative. However, brown stated that the test for Bacillus subtilis should come out positive. When the starch plate was observed, there was a lot of growth, and there was only a small circle that was hydrolyzed in the middle of the plate.…

Biology assignment Introduction ? There are many bacteria present in the world that affect people on a daily basis. There are any antiseptics available on the market to help combat the war against pathogenic bacterium. A common type of bacteria includes bacillus subtillis. ?B. subtillis is a bacterium found on the skin, in the digestive tract, in epithelial wounds, on extremities of the human body, in livestock and soil. Because B.subtiliis is ubquituous, it has developed adaptive strategies…

1. Non-pathogen name: Bacillus subtilis 2. Description of non-pathogen: B. subtilis is a mesophilic, gram-positive bacillus that is commonly found in soil, although it can also survive in plants (1). B. subtilis are facultative aerobes, using butanediol fermentation or nitrated ammonification when oxygen is unavailable (1). The bacillus is motile by using a single flagellum and commonly forms biofilms which contain several B. subtilis all traveling in the same direction (1). It has a circular…

effect in guinea pigs while administered with aspirin repressed the abortifacient activity because of inhibition in release/production of prostaglandins (Chandhoke 1982). 2.1.10. Antimicrobial The microbial flora collected from patients with gingivitis has shown inhibitory effect towards water extract (Patel and Venkatakrishna-Bhatt 1984). Moreover, the alcoholic extract of leaves and roots revealed antibacterial activity against Escherichia coli and Staphylococcus aureus, however, only S.…

test results until the correct bacteria were both positively identified. On day one of this process I received two bacteria, one labeled 7A and the other labeled 7B. I began the experiment with thirteen possible bacteria. The thirteen possible bacteria included, Enterococcus faecalis, Bacillus subtilis, Bacillus megaterium, Staphylococcus aureus, Staphylococcus epidermis, Micrococcus roseus, Micrococcus luteus,…

2. Materials and Methods: The keratin was extracted from Chicken feather which were collected from the local market of Raipur (21.14°N 81.38°E) Chhattisgarh, India. The 91% food grade alginate (sodium salt form) was purchased from Loba Chemie. The β-mercatpoethanol (mol. wt. 78.13) from LOBA Chemie, sodium dodecyl sulfate (SDS) (mol. wt. 288.38) and urea (mol. wt. 60.06) was purchased from Merck, and ethanol was purchased from Sigma-Aldrich. Antimicrobial strain of gram negative bacteria…

their choice. Unknown test tube #25 was obtained and streaked onto two agar plates to obtain individually isolated colonies. The gram-staining procedure was used to determine organismal morphology, resulting in a gram-positive cocci and gram-negative bacilli. A sucrose utilization test was performed and narrowed the possibilities of the gram-negative bacilli to Proteus vulgaris and Enterobacter cloacae. Then a Methyl Red and Voges-Proskauer (MR-VP) test was done to confirm the identity of the…

Anthrax is caused by spore forming bacterium. It mostly affects animals. Humans can be infected if come in contact with infected animals. It was most common with sheep and cattle. In 1881, Louis Pasteur focused his attention on anthrax. Louis Pasteur performed public experiments in which he injected one group of animals with an anthrax vaccine he developed (9). Pasteur gave 25 shots of anthrax vaccine he had created with a weakened anthrax bacteria (8). Pasteur gave both rounds of the vaccine…

(http://www.glutenfreeliving.com/gluten-free-lifestyle/non-gmo/gmo-impact-on-diet/). Using GMOs, scientists could turn on and turn off genes that cause pest attraction. Altering the DNA of crops has been proven safe over and over. GM foods could also potentially end our world hunger crisis. We lose a lot of the world’s crops every year because of global warming and harsh growing conditions around the world. If we lose less of our crops to pest damage and droughts, then more crops will be…

Bacillus anthraces is an intense irresistible malady brought on by Bacillus anthraces, a spore shaping, gram-positive bacillus. Related malady happens most much of the time in sheep, goats, and dairy cattle, which get spores through ingestion of polluted soil. People can get to be tainted through skin contact, ingestion, or inward breath of B. anthraces spores from contaminated creatures or creature items (as in "fleece sorter's infection" from introduction to goat hair). Individual…