Endospore

exact temperature and the duration of heating is not known, it appears that Hankin might have used a considerable temperature for a long duration that would have killed all biological substances, including bacteriophages, except perhaps bacterial endospores (Abedon et al, 2011).…

Streptococcus includes: gram staining, mobility tests, oxidative-fermentative tests and endospore tests. The other tests that help identify the species include: capsule tests, catalase tests, hemolysis tests and pyrrolidonearylamidase tests. (2). The genus Streptococcus is a, gram-positive cocci which ferments sugar, but the final product will always be lactic acid (2). Streptococcus also occurs in pairs or chains, has no endospores and is not motile (1). Although all of the members of the genus…

This led staphylococcus to be the only one that was not eliminated up to this point. When I learned that my chosen bacteria did not produce endospores I began to truly believe my unknown bacteria was Staphylococcus epidermidis. Unfortunately, I was unable to participate with the CNA and MSA experiment. This would have helped greatly in ensuring that I truly had chosen the right bacteria. CNA would…

The two types of bacteria are archaebacteria and eubacteria. What characteristics distinguish these two groups from the other kingdoms? These two groups are different from other kingdoms because all cells in these kingdoms are single-celled organisms whose organelles are not membrane bounds. They are also microscopically small. What is the average size of a bacterium? An average bacterium is about 1-2 micrometres long. How many prokaryote species have been discovered? How many are estimated to…

brain. The experiments used for identification of bacteria samples were efficient and extremely useful. If the study were to be repeated, certain tests that were non successful in lab such as the oxygen tolerance tests and the test for capsules and endospores. Had these tests been completed successfully with in the first trial of the study their results would have aided in a more time efficient identification of the genus of bacteria present with in the soil sample. Although these results would…

Introduction: The effectiveness of Antimicrobial agents against Microorganisms Population of microorganisms or growth are killed and/or inhibited by natural or synthetic chemical antimicrobial controls (Madigan, et al 2012). Antimicrobial agents are grouped according to their efficacy against microorganisms. Bactericidal that kill and bacteriostatic prevent and/or reduce growth (Madigan et al, 2012). Harmful pathogens are targeted with different antimicrobial agents according to their toxicity…

anthracis is an endospore-forming, facultatively anaerobic, bacterium that normally dwells in soil, vegetation and mainly livestock that are herbivores (Micro book). Although B. anthracis causes one disease, there is three manifestations or transmission of this bacterium…

and other stress factors (Sorg et al., 2014). It has also been predicted that toxin production by C. difficile is also regulated by nutrient limiting settings. Such an environment must be regulated in the large intestine since toxin production, endospores and clinical symptoms or disease is only seen in the large intestine and colon (Koenigsknecht et al.,…

Abstract Experiment 3-14 of the Microbiology: Laboratory Theory & Application lab manual was conducted to utilize the various morphological characteristics of organisms for the identification of unknown broth culture sample #26. Staining techniques including the gram stain and capsule stain were applied to initially describe the sample as a gram-positive staphylococci bacterium. Upon further examination and comparison with the gram-positive control, the microorganism was correctly described as…

information needed to survive (Department of Biological Sciences, 2015). However certain Gram positive bacteria are able to form endospores as a survival strategy through a process called sporulation, which happens when the bacteria experiences environmental stress, such as starvation due to limited nutrient sources. Sporulation is an asymmetrical cell division that produces an endospore which is extremely resistant to heat and desiccation and will lay dormant until it is germinated (Slonczewski…