Browsing Microbiological Sciences Masters Theses by Title
Now showing items 15-29 of 29
-
Impact of Pre-Harvest Environmental Factors on the Survival of Enterohemorrhagic E. Coli and Salmonella on Lettuce
(North Dakota State University, 2015)Enteric diseases linked to fresh produce consumption are on a rise. Pathogens can contaminate produce in the pre-harvest field and can survive for long time periods. Thus, this study quantified the survival of Enterohemorrhagic ... -
In the Pursuit of Poultry: β-Phenylethylamine and Ethyl Acetoacetate as Antimicrobials on Chicken
(North Dakota State University, 2022)This research examines the effect of β-phenylethylamine (PEA), a natural trace amine commonly found in food, and ethyl acetoacetate (EAA), an FDA approved flavoring agent and food additive, as novel antimicrobials on ... -
Investigations in Asthma Heterogeneity: The Roles of Aspergillus Fumigatus-Derived Eicosanoid Synthases and Occupational Exposures to Grain Dusts on the Development of Fungal Allergic Asthma
(North Dakota State University, 2013)Allergic asthma is an inflammatory syndrome of the respiratory system which changes the airway wall architecture. Using an aeroallergen, murine model of A. fumigatus-mediated asthma, the two studies herein examine the ... -
The Link Between Gut Microbiota Metabolism and Host Gluconeogenesis by Vasoactive Intestinal Peptide
(North Dakota State University, 2022)The gut microbiota (GM) plays a beneficial role in host metabolism. In mammals, the GM ferments dietary fiber into short chain fatty acids (SCFA), like propionate, that improves glucose metabolism. Rats fed a propionate ... -
lntraspecific Variation In Pathogenic Cryptosporidium parvum
(North Dakota State University, 2010)Cryptosporidium causes cryptosporidiosis, an infectious diarrheal disease, which can become chronic and life-threatening in immunocompromised individuals. Cryptosporidium parvum and C. hominis are the primary causes of ... -
Physical and Chemical Treatments for Bacterial Biofilms
(North Dakota State University, 2014)Physical and chemical treatments have been investigated for the treatment to remove biofilms. This thesis examines the problem of the removal and prevention of biofilms by: (i) using a water jet to determine biofilm stability ... -
A Porcine Circovirus Vaccine with Enhanced Capabilities
(North Dakota State University, 2016)Porcine circovirus type 2 (PCV2) is a pathogen of swine. Vaccines against PCV2 are available, although none are capable of differentiating infected from vaccinated animals (DIVA). Positive and negative DIVA markers were ... -
Potential for Phenotypic Plasticity in the Hyperosmotic Stress Response of Diverse E. coli
(North Dakota State University, 2021)Escherichia coli inhabits multiple environments that contain varying physical stresses which emphasize the importance of adaptation. The large pangenome of E. coli can account for some strain-to-strain variances in phenotype, ... -
Preliminary Investigation of Escherichia Coli K12 Biofilm Inhibition on an Antimicrobial Polysiloxane Coating using Whole Transcriptome Profiling
(North Dakota State University, 2012)Whole transcriptome profiling was examined in E. coli K12 when cultured on the surface of a pure polysiloxane coating (Sil) and a polysiloxane coating containing a tethered quaternary ammonium compound (QSil) shown to ... -
The Response of Salmonella enterica and Enterohemorrhagic Escherichia coli in Low-Moisture Environments
(North Dakota State University, 2021)The recent increase in outbreaks of low-moisture foods due to contamination with foodborne pathogens has led to an increase in interest of the response of these pathogens to low-moisture environments. In addition, knowledge ... -
Sexual Dimorphisms in the Adipose Biology of Vasoactive Intestinal Peptide Deficient Mice
(North Dakota State University, 2022)Both VIP and PACAP deficient mice display impaired fat storage, but only the molecular adipose characteristics of PACAP KO mice are known. While mice deficient in these peptides are lean, supplementation could promote ... -
Studies in Pathogenesis of a Novel Isolate of Cronobacter Sakazakii using an In Vitro Blood Brain Barrier Model
(North Dakota State University, 2013)Genus Cronobacter is a member of the family Enterobacteriaceae consisting of several opportunistic species. The primary focus of this study was to utilize an in vitro co-culture model of the blood brain barrier to investigate ... -
Validation of Effects of SNV From GWAS on Biofilm Phenotype Using a CRISPR System With Universal Guide RNA Sequence
(North Dakota State University, 2021)Extraintestinal E. coli have adapted to survive in secondary environments outside of the intestines of a host. The genetically diverse phylogroup D was use to validate two previous GWAS analysis that identified single ... -
Variability in Plant Growth Promoting Properties Among Clinical and Environmental Isolates of Stenotrophomonas Maltophilia
(North Dakota State University, 2015)Stenotrophomonas maltophilia has both negative and positive attributes by being a human pathogen and plant growth promoting rhizobacterium. This study sought to determine if environmental and clinical isolates of S. ... -
ß-phenylethylamine: A Novel Chemo-Attractant Agent
(North Dakota State University, 2021)Bacterial metabolism and physiology are finely tuned mechanisms that maintain homeostasis for the bacterium and allow for responses to environmental signals. Responses could include anything from regulation of cell division ...