Advisor Information

Dr. William Tapprich

Location

ROOM 232

Presentation Type

Oral Presentation

Start Date

1-3-2019 2:15 PM

End Date

1-3-2019 3:15 PM

Abstract

Bacteria are responsible for many Healthcare-Associated infections each year and are evolving to become multidrug resistant (MDR). Bacteriophages, also called phages, are naturally occurring bacterial viruses. These phages infect and kill their bacterial hosts. It is estimated that there are 10 different phages, per bacterium. This makes phages the most abundant entity in the biosphere. Isolating and characterizing these naturally occurring bacterial killers offers the potential for strain specific treatment of MDR infections. Such treatments, coined Phage Therapy, can be used in the fight against evolving bacterial infections. Pseudomonads are a classification of bacteria that infect a variety of plants and animals and are talented at gaining resistance to multiple antibiotics. We screen freshwater samples for bacteriophages effective against a Pseudomonas fluorescens host in the hopes of finding novel phages with broad Pseudomonad host range. Using an array of microbiology and bioinformatic tools we plan to extensively characterize bacteriophages and test their host range. Currently, we have several novel phage isolates representing three unique families of tailed bacteriophages. We have already characterized the viral particles and genomes from these phages and we are completing screens to determine their host ranges.

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Mar 1st, 2:15 PM Mar 1st, 3:15 PM

Isolating and Characterizing Novel Bacteriophages from Freshwater Samples

ROOM 232

Bacteria are responsible for many Healthcare-Associated infections each year and are evolving to become multidrug resistant (MDR). Bacteriophages, also called phages, are naturally occurring bacterial viruses. These phages infect and kill their bacterial hosts. It is estimated that there are 10 different phages, per bacterium. This makes phages the most abundant entity in the biosphere. Isolating and characterizing these naturally occurring bacterial killers offers the potential for strain specific treatment of MDR infections. Such treatments, coined Phage Therapy, can be used in the fight against evolving bacterial infections. Pseudomonads are a classification of bacteria that infect a variety of plants and animals and are talented at gaining resistance to multiple antibiotics. We screen freshwater samples for bacteriophages effective against a Pseudomonas fluorescens host in the hopes of finding novel phages with broad Pseudomonad host range. Using an array of microbiology and bioinformatic tools we plan to extensively characterize bacteriophages and test their host range. Currently, we have several novel phage isolates representing three unique families of tailed bacteriophages. We have already characterized the viral particles and genomes from these phages and we are completing screens to determine their host ranges.