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Articles 1 - 4 of 4
Full-Text Articles in Biology
Identifying Determinants Of Target Specificity In Two Related Bacterial Peptide Toxins, Andrew D. Holmes
Identifying Determinants Of Target Specificity In Two Related Bacterial Peptide Toxins, Andrew D. Holmes
Honors Thesis
Toxin-antitoxin (TA) systems were originally identified as two-component systems ensuring the stable inheritance of plasmids in bacterial populations. Recently, they have been identified on bacterial chromosomes where their functions remain mostly undefined. The par locus of E. faecalis plasmid pAD1 (parpAD1) was the first TA system defined in a Gram-positive bacterium and a homolog encoded on the E. faecalis chromosome (parEF0409) was later described. Related loci numbering in the hundreds have been identified throughout Gram-positive bacteria based on homology to the toxin of the system, Fst, and similarities in genetic organization and regulation. Despite …
Influences Of Anti-Bd Bacteria On Amphibians And Their Microbiomes, Emme L. Schmidt
Influences Of Anti-Bd Bacteria On Amphibians And Their Microbiomes, Emme L. Schmidt
Honors Thesis
The fungal pathogen Batrochochytrium dendrobatidis (Bd) has been threatening amphibian populations across the globe. Recent work has discovered that bacteria isolated from certain populations of amphibians protect hosts from this pathogen. This project focuses on the anti-fungal mechanisms of Serratia marcescens, a species of bacteria isolated from a Costa Rican frog that dramatically inhibited Bd in culture. Wild-type and recombinant S. marcescens was introduced to the microbiomes of a live amphibian host, Acris blanchardi (Blanchard’s Cricket Frog) and then challenged with Bd to examine the protective effects of this bacteria. The experiment includes recombinant S. marcescens with …
Current And Future Applications Of 3d Printing Using Custom-Made Materials, Bridger T. Irons
Current And Future Applications Of 3d Printing Using Custom-Made Materials, Bridger T. Irons
Honors Thesis
The use of 3D printers has increased exponentially from its inception in the 1980s. Recently, the ability to design and create detailed objects has drawn the attention of many who wish to capitalize on this highly customizable process. With much of the focus in this industry being placed on finding new printable materials, many are overlooking the possibility of modifying existing materials. The aim of our research was to modify the materials already being used by 3D printers to alter their properties and explore future possible applications. We examined the addition of graphene powder, carbon microfibers, and other nanoparticles to …
Optimization Of Methods For Cross-Species Infection Of Cell Cultures With Wolbachia, Sarah J. Lane
Optimization Of Methods For Cross-Species Infection Of Cell Cultures With Wolbachia, Sarah J. Lane
Honors Thesis
The common intracellular endosymbiont genus of bacteria called Wolbachia is of interest due to the promise it shows for playing a role in disease control. Wolbachia have a number of widely variable effects on its many species of host insects. In combination with these roles, Wolbachia largely affects reproduction and development of its host species. It can lead to feminization and cytoplasmic incompatibility (Werren et al. 2008). Furthermore, this species is vertically transmitted which means that it passes from mother to offspring (Caragata et al., 2016). In combination with its effects on reproduction, which can allow Wolbachia to propagate through …