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Full-Text Articles in Microbiology
Qualitative Proteomic And Genomic Analysis Of Klebsiella Pneumoniae Bacteriophage Kaomega, Emilee Carr
Qualitative Proteomic And Genomic Analysis Of Klebsiella Pneumoniae Bacteriophage Kaomega, Emilee Carr
Undergraduate Honors Theses
Klebsiella pneumoniae is a Gram-negative Enterobacteriaceae that is a common nosocomial pathogen causing pneumonia, infections in the bloodstream, wound infections, and meningitis. It has developed natural resistance to multiple antibiotics, most notably carbapenems which are often seen as the last line of defense against multi-drug resistant pathogens. Bacteriophages are being investigated as a promising alternative treatment to antibiotics in fighting these resistant pathogens. KaOmega, a Klebsiella pneumoniae bacteriophage, was isolated, sequenced, and annotated to characterize and understand its potential for use in a phage therapy. Characterization included Phyre2 analysis to predict putative protein functions based on structural homology, burst size …
Isolation, Characterization, And Genomic Comparison Of Bacteriophages Of Enterobacteriales Order, Ruchira Sharma
Isolation, Characterization, And Genomic Comparison Of Bacteriophages Of Enterobacteriales Order, Ruchira Sharma
Theses and Dissertations
According to CDC, every year at least 2 million people are affected and 23,000 dies as a result of antibiotic resistance in U.S. It is considered one of the biggest threats to global health. More and more bacterial infections are becoming harder to treat. One such infection is fire blight, one of the most destructive disease of apple and pear trees. It is caused by bacteria Erwinia amylovora and its outbreaks have been known to destroy entire orchards in a single season. The conventional method of treatments includes use of antibiotics like streptomycin and oxytetracycline but the incidences like presence …
Isolation, Genetic Characterization And Clinical Application Of Bacteriophages Of Pathogenic Bacterial Species, Trever Leon Thurgood
Isolation, Genetic Characterization And Clinical Application Of Bacteriophages Of Pathogenic Bacterial Species, Trever Leon Thurgood
Theses and Dissertations
Bacteriophages (phages) are the smallest biological entity on the planet. They provide vast amounts of valuable knowledge to biologists. Phage genomes are relatively simple compared to the organisms they infect (prokaryotes) and yet continually point to the complexity surrounding molecular- and microbiological mechanisms of life. By studying phages we can learn of the systems of gene expression, protein interaction and DNA organization. Phages are useful not only from an academic perspective, but may also have useful clinical applications. In the face of the rise of antibiotic-resistant bacterial “super pathogens”, scientists and researchers turn to phages as alternative treatments to these …
Further Understanding Of Bacteriophages That Infect The Bacterial Family Enterobacteriaceae, Paul Flake
Further Understanding Of Bacteriophages That Infect The Bacterial Family Enterobacteriaceae, Paul Flake
Undergraduate Honors Theses
Despite the eclectic nature of bacteriophage genomes, nucleotide comparison is an effective method for grouping phages into cluster and subcluster classifications. This process is facilitated by making preliminary cluster assignations based on the identity of the major capsid protein. As more phages continue to be sequenced and integrated into cluster/subcluster groupings, adjustments may need to be made to the genomic similarity percentages that have previously defined cluster/subcluster classifications. Implementing proteomic comparison in addition to nucleotide homology may provide added clarity to this process. Protein conservation and diversity among lytic phages that infect the bacterial family Enterobacteriaceae is discussed and the …
Bacteriophages For Treating American Foulbrood And The Neutralization Of Paenibacillus Larvae Spores, Thomas Scott Brady
Bacteriophages For Treating American Foulbrood And The Neutralization Of Paenibacillus Larvae Spores, Thomas Scott Brady
Theses and Dissertations
The causative agent of the most devastating honeybee disease, American foulbrood (AFB), is the spore-forming bacterium Paenibacillus larvae. To prevent AFB outbreaks beekeepers prophylactically treat their hives with antibiotics even though it decreases the overall health of uninfected hives. A new treatment for AFB is needed due to recent legislation against using antibiotics, antibiotic resistance developing in P. larvae, and the resilience of P. larvae spores. Bacteriophages, or phages, are an attractive alternative to traditional antibiotics because of their specificity and ability to evolve alongside their target bacterium. In this study, two phage cocktails were developed for the …
Characterization Of Five Brevibacillus Bacteriophages And Their Genomes, Michael Allen Sheflo
Characterization Of Five Brevibacillus Bacteriophages And Their Genomes, Michael Allen Sheflo
Theses and Dissertations
Brevibacillus laterosporus (B. laterosporus) is a pathogen difficult to distinguish from Paenibacillus larvae (P. larvae), and contributes to Colony Collapse Disorder (CCD) of honeybees. To develop a biocontrol agent to limit its presence, bacteriophages were isolated from Utah County soil samples and used to infect B. laterosporus isolated from Utah County honey and larvae samples. Since CCD is prevalent in Utah beehives, bacteriophage that infect and lyse B. laterosporus may be isolated and characterized. Pathogens were isolated from soil samples, and 16S rRNA gene tests initially identified the strains as P. larvae. Bacteriophages were isolated, purified, and amplified sufficiently to …
Discovery And Characterization Of Bacteriophage To Control Mrsa, Jacob B. Hatch, Bradford Berges
Discovery And Characterization Of Bacteriophage To Control Mrsa, Jacob B. Hatch, Bradford Berges
Journal of Undergraduate Research
About 20% of humans are carriers of Staphylococcus aureus (SA). There were an estimated 11,000 deaths in the United States in 2005 attributed to SA, with the majority caused by MRSA (Methicillin Resistant Staphylococcus Aureus) isolates [1]. Many MRSA isolates have developed resistance to all but one antibiotic drug: vancomycin. However, other bacteria have developed resistance to vancomycin, suggesting that in time MRSA will likewise become non-responsive to this last available drug and MRSA infections will be untreatable. This project looks to find an alternate method of MRSA treatment. Bacteriophage (phage) are viruses that infect bacterial cells in order …
The Use Of Bacteriophage For Surface Sterilization Of Methicillin-Resistant Staphylococcus Aureus In Poultry Facilities, Trevor Wienclaw, Bradford Berges
The Use Of Bacteriophage For Surface Sterilization Of Methicillin-Resistant Staphylococcus Aureus In Poultry Facilities, Trevor Wienclaw, Bradford Berges
Journal of Undergraduate Research
Staphylococcus aureus (SA) is potentially dangerous pathogen that can infect humans and animals alike1. The primary treatment for such infections has been antibiotics, but even shortly after antibiotics began to be used, antibiotic-resistant strains, known as MRSA, were discovered. These resistant strains have since spread, and now account for over half of all clinical isolates4. A similar scenario developed in the livestock industry. Antibiotics have been used to treat diseased animals and to promote growth in healthy animals. This use lead to development of MRSA among these animals. These animals may merely be carriers or they …
Advancing Phage Genomics And Honeybee Health Through Discovery And Characterization Of Paenibacillaceae Bacteriophages, Bryan Douglas Merrill
Advancing Phage Genomics And Honeybee Health Through Discovery And Characterization Of Paenibacillaceae Bacteriophages, Bryan Douglas Merrill
Theses and Dissertations
The Paenibacillaceae family of bacteria includes two species known to infect the hives of honeybees, Paenibacillus larvae and Brevibacillus laterosporus. P. larvae, the causative agent of American Foulbrood (AFB) causes a lethal infection of honeybee larvae, while B. laterosporus is a secondary invader following European Foulbrood (EFB) infection. Increasing antibiotic resistance of P. larvae bacteria has prompted a search for alternative treatment methods for this disease. Bacteriophages are the most diverse life forms on earth and can provide important insights about the bacterial hosts they infect. However, few Paenibacillaceae phages have been isolated or characterized. In this study, the first …
Isolation And Host Range Of Staphylococcus Aureus Bacteriophages And Use For Decontamination Of Fomites, Kyle C. Jensen
Isolation And Host Range Of Staphylococcus Aureus Bacteriophages And Use For Decontamination Of Fomites, Kyle C. Jensen
Theses and Dissertations
Staphylococcus aureus is a common bacterium found on the skin and mucosal membranes of about 20% of the population. S. aureus growth on the skin is harmless, but if it bypasses the skin it can causes life-threatening diseases such as pneumonia, meningitis, bacteremia, and sepsis. Antibiotic-resistant strains of S. aureus, called Methicillin Resistant S. aureus (MRSA), are resistant to most antibiotics except vancomycin. However, vancomycin resistant strains of MRSA are becoming more common. In this study, 12 phages were isolated capable of infecting human S. aureus and/or MRSA strains. Five phages were discovered through mitomycin C induction of prophages and …
Discovery And Characterization Of Bacteriophage To Control Mrsa, Jacob B. Hatch, Bradford Berges
Discovery And Characterization Of Bacteriophage To Control Mrsa, Jacob B. Hatch, Bradford Berges
Journal of Undergraduate Research
About 20% of humans are carriers of Staphylococcus aureus (SA). There were an estimated 11,000 deaths in the United States in 2005 attributed to SA, with the majority caused by MRSA (Methicillin Resistant Staphylococcus Aureus) isolates [1]. Many MRSA isolates have developed resistance to all but one antibiotic drug: vancomycin. However, other bacteria have developed resistance to vancomycin, suggesting that in time MRSA will likewise become non-responsive to this last available drug and MRSA infections will be untreatable. This project looks to find an alternate method of MRSA treatment. Bacteriophage (phage) are viruses that infect bacterial cells in order …