Gram-positive bacteria

infections it can lead to under specific conditions. Introduction Propionibacterium acnes (P. acnes) is a bacteria that grows deep inside of pores, which is relatively slow-growing, typically aerotolerant anaerobic and gram positive type, It feeds on the sebum that is made by the sebaceous glands which surround the base of hair shaft. One of the most prominent properties of these bacterias is that it’s partially…

between gram negative and gram positive bacterium. This is important when doing gram staining experiments. It also looks at the importance of microbiology. DIFFERENCES OF GRAM NEGATIVE AND GRAM POSITIVE BACTERIUM There are notable differences between the gram negative and gram positive bacterium. Gram negative bacterium is surrounded by a thin peptidoglycan cell wall while Gram positive has a thick layer of peptidoglycan. The peptidoglycan around the gram negative is about 8-10 mm while in gram…

first isolated by Alexander Ogston. Ogston described the bacteria, which he isolated from pus collected from surgical wounds, as micrococci (Thomer et al., 2015). This description was given because of the sphere-shape of the bacteria and the grape-like clusters that they form. After Ogston’s discovery, Friedrich Rosenbach differentiated between two staphylococci bacteria, which were isolated from humans (Thomer et al., 2015). These bacteria were named S. aureus and S. albus. This nomenclature…

Discussion: The isolate studied was tested for innate antibiotic function on the following media: AC, LB, and 10% TSA. The ESKAPE relative strain that presented a response to the isolate was B.subtilis. In all cases except for that of LB, the isolate showed antibiotic qualities towards B.subtilis by presenting a zone of clearance on AC and 10% TSA media. This behavior is shown in Figures 4, 5, and 6.In the case with LB, B.subtilis inhibited the growth of the isolate as depicted by the empty…

the cell. Bacteria live in dilute aqueous environments, which causes an intracellular pressure equivalent of 10-25 atm. Without the structural support of the cell wall, the cell is susceptible to lysis and osmotic rupture due to osmotic rupture due to turgor pressure. Figure 1: Comparison between gram-positive bacterial cell walls and gram-negative bacterial cell walls. Structural differences in the bacterial cell walls cause bacteria to be subcategorized into gram-positive and gram-negative.…

Listeria monocytogenes is a gram-positive rod-shaped bacterium and facultative anaerobic that can grow under either anaerobic or aerobic conditions but do not form endospores. Among the six species of Listeria, only Listeria monocytogenes is the major human pathogen that causes disease in humans. It is a causative agent to cause listeriosis, a serious infection caused by ingesting the food contaminated with Listeria. The optimum temperature for growth is 30 to 37 degree Celsius, within this…

The purpose of the infections caused by gram-positive cocci lab exercise is to utilize different identification and diagnostic techniques to differentiate various groups of bacteria, which cause infection. Our primary goal is first to establish the presence of an infection; then, determine which particular pathogens, or groups of pathogens, are the underlying cause of the infection. In the clinic, infections manifesting from gram-positive cocci are a common and growing problem. Two genera in…

CLOSTRIDIUM TETANI Introduction Clostridium tetani is a microorganism that has effected the lives of many people. This bacteria is the cause of the disease many people have come to know as Tetanus. It infects its victims by releasing a toxin in the human body that causes an infection in the nervous system (Hassel, 2013). The first experimentations with Tetanus began in the 1800’s when scientists began infecting animals with samples from infected humans. In 1889, one scientist by the name…

inhibiting bacteria. This result however, does not signify that natural remedies are inadequate at inhibiting bacteria. It reflects that natural remedies are ineffective in inhibiting gram-positive bacteria. First natural product: Saliva for instance, is one of the body’s many defence mechanisms. Its main function is to prevent adhesion of bacteria to oral surfaces. This means that saliva does not specialise in killing bacteria. Research has indicated that saliva have anti-bacteria property…

the disease it causes. At the beginning of class, the TA handed each student an agar plate containing some unknown bacteria, each one was numbered. Mine was number 14. The teacher then asked the students to use the techniques used in class (sterilize the inoculated loop, get a small amount of the unknown bacteria, incubate) to identify the unknown bacteria. To start, the unknown bacteria had to be successfully isolated. Using a wire loop, a small sample of the numbered test tube was plated on…