S. Epidermidis Research Paper

Epithalamium Nick Laird The New Yorker January 24th, 2011 You're beeswax and I'm bird shit. I'm mostly harmless. You're irrational. If I'm iniquity then you're theft. One of us is supercalifragilistic. If I'm the most insane disgusting filth you're hardly curiosa. You're bubble wrap to my fingertips. You're winter sleep and I'm the bee dance. And I am menthol and you are eggshell. When you're atrocious I am Spellcheck. You're the yen. I'm the Nepalese pound. If I'm homesteading you're radical chic. I'm carpet shock and you're the rail. I'm Memory Foam Day on Price-Drop TV and you're the Lord of Misrule who shrieks when I surface in goggles through duckweed, and I am Trafalgar, and you're Waterloo, and frequently it seems to me that I “You’re bubble wrap to my fingertips” is the second time in which he shows an unconvinced attitude (7). The imagery used in this line makes all readers think of the pleasant and enjoyable act of popping small plastic bubbles repeatedly with the fingers. So once again, the partner is described positively, as a pleasure. The final line of the second stanza presents an allusion of “winters sleep”, something that refers to the act of hibernation, comparing it to the “bee dance”, a series of quick movements performed by a bee to communicate with other bees (8). When you think of hibernation you think of a bear, and although they may be exciting at times, during the winter I don’t think I would use that word to describe them. In fact, the speaker uses the phrase “winters sleep” to describe the bride’s boringness and even laziness, while a bee, the groom in this case, is always exciting and active (8).

Have you ever had a small pimple that was a nuisance and you decided to rid by squeezing? Or a nick in the skin from shaving? Then after a couple of days you noticed it ends up red, warm, inflamed, swollen and very painful. More than likely you have opened

Causal Agent The Staphylococcus aureus bacteria belongs to the Staphylococcaceae family. It is small, round shaped, and non-motile. Staphylococcus aureus stains gram positive and can often be found in small clusters (Mandal, 2010). It often forms chains and is a large contributor of soft tissue infections. It is of a yellow color, hence the name ?aureus? which comes from the Latin term ?aurum? for gold (Orenstein, n.d.). Staphylococcus aureus is found in a few spots on the human body, such as the nasal passage, the skin, the oral cavity, and even the gastrointestinal tract. Staphylococci and Streptococci are two different strands of the bacteria and are very hard to distinguish from one another. In order to tell the difference between them, without a microscope, a catalase test needs to be performed. The test is undergone by adding 3% hydrogen peroxide to both samples. Since Staphylococci are catalase positive, meaning they produce catalase, they will produce O? while the Streptococci will not because Streptococci are catalase negative (Todar, n.d.).

Humans are a natural reservoir for S. aureus, and asymptomatic colonization is far more common than infection. Young children tend to have higher colonization rates, probably because of their frequent contact with respiratory secretions.

Staph are common bacteria that are denizens of the human body. It is perfectly fine to carry staph; a lot of healthy people hold it within their bodies without being infected by it. Furthermore, one third of the population has staph bacteria in their noses. However, staph can rapidly become quite a problem if it manages to enter the body, usually through a cut, and cause an infection. Staph is one of the most popular causes of skin infections in the U.S. Most infections are minor, not fatal, and don’t require special treatment, but some can be disastrously life-threatening, creating festering wounds or pneumonia.

This strain of bacteria is a facultative anaerobic organism, which means that it can grow with or without oxygen. Staphylococcus epidermis grows well on nutrient agar dishes with a temperature of 37°C (modmedmicrobes.wikispaces.com).

Identification of an Unknown Staphylococcus Species Ashley Pirone Clara Romero Santiveri BIOL 1122-01 March 1, 2017 Introduction The purpose of this experiment was to isolate and identify an unknown Staphylococcus species based on its morphological and biochemical profile (Alachi, 2006). The Staphylococcus genus consists of Gram-Positive bacteria, arranged in grape-like clusters. These species are common residents of the skin and mucous membranes of humans and animals. Majority of Staphylococci are catalase-positive, oxidase negative, aerobic and facultatively anaerobic, and non-motile. They are considered opportunistic pathogens and cause roughly 80% of suppurative skin diseases (e.g., boils). Many Staphylococci

Staphylococcus epidermidis is a gram positive bacteria, which means that there is a lot of peptidoglycan in its cell wall. Therefore, the antibiotics that target these types of bacteria will decrease the metabolism of the bacteria. When placed in an incubator overnight, the bacteria will grow colonies that are 1-2 millimeters in diameter (8). Over time, the bacteria might have been able to produce offspring that are resistant to some antibiotics, called mutations. These mutations make the antibiotic useless on the bacteria from then on and they were naturally selected because they were most fit for survival in the given conditions.

Enceledus is the sixth-largest moon of Saturn which discovered by William Herdchel in 1789. Three spacecrafts contributed the main discovery of the Enceledus. Voyager I spacecraft found that Enceledus has a high albedo and is orbiting inside the E ring of the Saturn at the highest density point whereas Voyager II spacecraft observed that there are at least 5 type of terrain on the surface such as crater terrain, young terrain and so on. Cassina spacecraft discovered water-rich plumes venting from the south polar region which approved that the Enceledus is the source of the E ring and is able to create life. In addition the environment on Enceledus is perfect fits in all the chemical requirements for life existence.

2.1.1. Most common pathogenic strains that cause wound infection The most common pathogenic strains that cause wound infection is Staphylococcus aureus (35%), Escherichia coli (15%), Pseudomonas aeruginosa (13%) and other bacteria (37%) (Amit Kumar Gupta et al., 2015). In another study, Staphylococcus aureus has been reported as the major cause of wound

Staphylococcus epidermidis is a Gram-positive skin-dwelling commensal microorganism within the human microbiota. As a commensal, S. epidermidis may enhance cutaneous defense through elicitation of host immune responses by stimulating the innate immune system through toll-like receptors (TLRs) found on keratinocytes in the epidermidis [1]. Nevertheless S. epidermidis has the potential to become pathogenic especially in nosocomial or hospital-acquired infections by infecting immunocompromised individuals with medical devices like catheters and implants [1], [2]

Discussion Identity of Unknown Bacterial Species After inoculating an agar plate with the bacteria taken from a phone screen in Durham during winter, various tests were performed to attempt to identify the organism’s genus. We hypothesized that the bacteria was a member of the Staphylococcus genus. The Gram Stain results indicate that the bacterium is either Gram negative, but the KOH test indicates a Gram-positive isolate. Upon further consideration, we decided that the bacterium is a Gram-positive destainer. Gram-positive bacteria have a thick cell wall composed of peptidoglycan. As expected, the Gas Pak and TSA stab results indicate that the bacterium cannot grow in the absence of oxygen. A motility stab indicated that the bacteria were motile. Motility provides an ability to change direction and move away from repellents and toward attractants. Thus, the microbe can avoid unfavorable conditions, and live longer. The positive lysine decarboxylase test indicates that the microbe can use the amino acid lysine as a source of carbon and energy for growth. First, the bacteria use glucose as its primary carbon source, which causes the pH to drop. The enzyme lysine decarboxylase degrades lysine to produce basic products. This change in pH is what causes the broth to turn purple again, a positive result. An endospore stain indicated that the bacterium does not produce spores under stress to protect the cells from dying. Spores are metabolically inactive and

The genus Streptococcus is classified as a gram positive bacteria because of the spherical or ovoid cells that often arranged in pairs and the color it turns too after undergoing the gram staining technique. Unlike the catalase positive genus Staphylococcus, Streptococcus is catalase negative (Fox). Many Streptococcus bacteria are known

Nick Swanson In this lab experiment, two species of bacteria were cultured on tryptic soy agar (TSA) with the addition of four different antibiotics to demonstrate the effectiveness of each anti biotic. The two species grown were E. coli and Staphylococcus epidermidis, both very different in relation to size, shape, and

Staphylococcus aureus Life History and Characteristics: Staphylococcus aureus is a gram positive bacterium that is usually found in the nasal passages and on the skin of 15 to 40% of healthy humans, but can also survive in a wide variety of locations in the body. This bacterium is spread from person to person or to fomite by direct contact. Colonies of S. aureus appear in pairs, chains, or clusters. S. aureus is not an organism that is contained to one region of the world and is a universal health concern, specifically in the food handling industries.