Staphylococcus

Literature Research: Staphylococcus is a type of Gram-positive bacteria that are commonly found together in random clusters. They are sometimes found in the same habitat as Micrococcus and can be differentiated because of the occurrence of cytochromes (5). They are typically facultative anaerobes or microaerophils and are able to produce catalase, making it possible for them to convert hydrogen peroxide to water to avoid potential damage. The major product of fermentation is lactate and they are not able to ferment citrate (4). There are several different species in the genus Staphylococcus such as Staphylococcus epidermidis and Staphylococcus aureus. Staphylococcus aureus, closely related to the bacteria Staphylococcus epidermidis that was identified in the experiment, is a pathogenic bacterium, unlike S. epidermidis. Staphylococcus aureus is a type of Staphylococcus that can occur both in singles and in pairs. There are several types of capsules found among Staphylococcus aureus the colonies are smooth, raise, circular, and are typically translucent (5).…

Since the beginning of time, Staphylococcus, also known as staph infection, has (Khan, 2017), but there was not an official discovery of what it was until much later. In the year of 1880, a surgeon discovered the bacterial infection in a patient after a surgery (Mandal, 2012). A staph infection is an infection caused by a group of Staphylococcus bacteria that can cause many different conditions and diseases. Believe it or not, the Staphylococcus bacteria is found in the normal flora of the…

IV. Pathogenesis of Staphylococcus aureus A. Mode of Pathogenicity Staphylococcus aureus is both a commensal bacterium and a versatile pathogen. It is commensal because it can harmlessly colonize in the nares, axillae, vagina, pharynx, or damaged skin surfaces (Jenkins et al. 2015). Commensal bacteria supports the superficial layer of our body from pathogenic bacteria. For instances, S. aureus produces bacteriocins (toxins created by bacteria) that impedes pathogenic staphylococcal organism…

Methicillin was first developed in 1959 as an antibiotic against penicillin-resistant Staphylococcus aureus. This beta-lactam antibiotic inhibits the synthesis of bacterial cell walls and inhibits cross-linkage between the linear peptidoglycan polymer chains, essentials for the cell wall of Gram-positive bacteria. This antibiotic is a derivative and modification to the original beta-lactam antibiotic penicillin and is penicillinase-resistant, which is effective against S. aureus bacterium’s…

Bacteria: Staphylococcus aureus Bacteria is a funny thing in the world of the living organisms. We, as humans, often look at bacteria as a germ or something that causes harm to our body but that is not the case. The Earth happens to widely depend on bacteria. We often forget that 99% of bacteria is good for us. We need these bacteria’s so they can occupy spaces in our body where else that 1% of bad ones will invade and make us sick. The bacteria, Staphylococcus aureus, happens to be one of…

Methicillin-Resistant Staphylococcus Aureus For this assignment I have been asked to choose a pathogen, describe it and explain how the chain of infection can be broken. I have chosen Meticillen Resistant Staphylococcus Aureus. As a support worker in theatres MRSA can cause significant problems for us and for patients, therefore we have to have each patient screened before we operate and we have certain standard precautions we need to follow before, during and after surgery. Staphylococcus…

Prior to the commencement of the experiment, several hypotheses were made in regards to the efficacy of different household antibacterial products on two species of bacteria. The first hypothesis predicted that the most afflicted species of bacteria would be Staphylococcus aureus; the second suggested that products A and C would be more effective at killing both species of bacteria than product B; whilst the third hypothesis proposed that product A would be most active against S.aureus. The…

Staphylococcus epidermidis is a gram-positive cocci, that measured approximately 0.5um and had an optimum growth temperature of 37°C. Generally, when given an unknown solution, Staphylococcus epidermidis has features that can distinguish it from other forms of bacteria. After doing a gram stain, it was noticed that the bacteria had a cocci morphology, meaning that the cell can either be staphylococcus, enterococcus, or micrococcus. Using the gram stain, it can also be seen that the bacteria in…

from the genus Staphylococcus which was one of the few possibilities that unknown 10 could be. The results from the blood agar plate indicated that unknown 10 preformed Gamma-hemolysis. Most Staphylococcus and Enterococcus species produce the reaction of Gamma-hemolysis. However, Enterococcus was eliminated from being unknown 10 because it exhibits poor growth on Mannitol Salt Agar (MSA), where as unknown 10 grew in the medium and fermented the mannitol. Starch Hydrolysis. This test is used to…

The subjects that will be discussed are staphylococci, Unknown 1, and Streptococci & Enterococci. Exercise 26 emphases on Staphylococcus. Staph is short for staphylococcus, which is a type of bacteria. The genus for staphylococcus is staphylococci there are various types but the most important organisms within this genus are Staphylococcus aureus, Staphylococcus saphrophyticus, and Staphylococcus epidermidis. S.aureus is the common bacteria within this genus and is the number one infection in…