Antibiotic Resistance in Bacteria Native to the Soil of the University of North Florida Hunter Torres General Biology II June 15th, 2015 Introduction The phenomenon of antibiotic resistance occurs when bacterial organisms can resist – via several different avenues – the harmful effects of antibiotic drugs, which ultimately results in a selective advantage that is not shared amongst the remainder of the population that is still susceptible to the effects of the drugs. There are numerous
Coevolution Between Bacterial and Phage Populations PCB 4674 Fall 2016 Abstract Often termed an “evolutionary arms-race,” the enduring battle between bacterial and phage defenses against one another has shed insight into the mechanisms behind coevolution, and how these adaptations have led to diversification and speciation within both populations. Research into the relationship has yielded evidence that antagonistic coevolution can be advantageous for both phage and bacteria, often resulting in
abundant type of organism on the planet, bacteriophages present a solution that is species-specific and has less side effects than antibiotics, since eukaryotic cells lack the phage receptors needed for a phage infection.16 Of the two types of bacteriophages, lytic and lysogenic, lytic phages are of great interest due to the fact that they replicate in and subsequently lyse the bacterial host cell.16 In a study conducted by Karamoddini et al., antibiotic resistant samples of Klebsiella species were
antibiotic is tetracycline (Sanramaria, 2011; Mathews, 2013). Tetracycline is used to treat bacterial infections, including pneumonia and other respiratory tract infections; acne; infections of skin, genital and urinary systems; and the infection that causes stomach ulcers (Tetracycline 2010). The easiest way for
Randhawa 1 Zorawar Randhawa Mrs. Eideh Honors Biology 8 June 2015 Effects of Antibiotics Bacterial Growth Bacteria are the most common and ancient microorganisms on earth. Most bacteria are microscopic, measuring 1 micron in length. However, colonies of bacteria grown in a laboratory petri dish can be seen with the unaided eye. When considering the pH level, bacteria are classified as either acidophiles (acid-loving), neutrophiles (neutral ph range), or alkaliphiles (alkali-loving). The
evolution of bacterial cells through a series of survival mechanisms has lead to a potentially catastrophic consequence in regard to treatment of human disease caused by bacterial infection, Antibiotic Resistance. The advanced survival mechanisms of bacteria and the increased misuse and lack of understanding with regard to the treatment of bacterial infection links to the fact that antibiotic resistance development is an inevitable fact, within 8-12 years it is believed that bacterial strains can
The Evolution of Antibiotic Resistant Bacteria Since antibiotics, such as penicillin, became widely available in the 1940s, they have been called miracle drugs. They have been able to eliminate bacteria without significantly harming the other cells of the host. Now with each passing year, bacteria that are immune to antibiotics have become more and more common. This turn of events presents us with an alarming problem. Strains of bacteria that are resistant to all prescribed antibiotics are
Staphylococcus aureus is a bacteria that can be found on the nose and other respiratory areas, present in about one-third of the population. ‘Staphylococcus’ comes from Greek language, translating into “cluster of grapes” to describe the spherical berry shape of the bacteria and ‘aureus’ translates to “gold” in Latin. That being said, Staphylococcus aureus is golden in nature. When stained and observed under a microscope, it retains a dark purple color and is known to be Gram-positive bacteria. A staining method
Thought Paper: Pathogens Are Rare & Virulence Varies Greatly Less than 1% of bacteria can invade our bodies and making us ill [5]. Such bacteria are pathogenic and have the potential to be disease causing. This means that the remaining 99% are rather ubiquitous in nature and serve beneficial purposes or have no effect on humans. Pathogens vary in complexity and those that remain are a direct result of successfully adapting to their environments and evolving over time to overcome selective evolutionary
The overuse of antibiotics has been a problem for well over a decade. This misuse leads to many nonvisible problems arising within the human population. As the use of antibiotics increases, the number of antibiotic resistant bacteria also increases. When bacteria become resistant to an antibiotic, another antibiotic must be used to try and kill it and the cycle becomes vicious. Michael Martin, Sapna Thottathil, and Thomas Newman stated that antimicrobial resistance is, “an increasingly serious threat