Browsing Microbiological Sciences Masters Theses by Title
Now showing items 8-27 of 29
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The Effects of Acetoacetic Acis on Bacterial Growth and Biofilm Formation of Cronobacter Sakazakii, Serratia Marcescens, and Yersinia Enterocolitica
(North Dakota State University, 2016)Prevention of bacterial biofilms is an area of research currently being investigated by many research teams. The ability of a chemical to be incorporated into a material that could be used in a medical or food production ... -
Effects of Intensive Agricultural Management Practices on Soil Microbial Assembly and Recruitment
(North Dakota State University, 2022)Soil microbial communities play an important role in ecosystems in various ways to promote healthy and fertile soil. However, intensive agricultural practices with excessive tillage and fertilizer applications can affect ... -
Efficacy of Chlorine Dioxide Fumigation on the Spores of Paenibacillus larvae, the Causative Agent of American Foulbrood Disease in Honeybees
(North Dakota State University, 2019)Honeybees (Apis mellifera) play a critical role in agricultural pollination. However, their health and numbers are in decline. A major cause of this decline is bacterial diseases, of which American foulbrood disease (AFB) ... -
Exploration of Laboratory Techniques Relating to Cryptosporidium Parvum Propagation, Life Cycle Observation, and Host Immune Responses to Infection
(North Dakota State University, 2014)Cryptosporidium causes cryptosporidiosis, a self-limiting diarrheal disease in healthy people, but causes serious health issues for immunocompromised individuals. Cryptosporidiosis has been observed in humans since the ... -
Gene Regulation in Biofilms
(North Dakota State University, 2011)Sessile bacterial communities which form on the solid surface or solid-liquid interface are known as biofilms. Both single species and multispecies biofilms are characterized by an extracellular matrix of polymeric ... -
Glucose Uptake by the Cellulolytic Rumen Anaerobe Bacteroides Succinogenes
(North Dakota State University, 1986)Glucose uptake by the cellulclytic rumen anaerobe, Bacteroides succinogenes S85, was measured under conditions that maintained anaerobiosis and osmotic stability. This organism was found to possess a highly specific, active ... -
Happy Beef: The Development of ß-Phenylethylamine as a Novel Nutrient Treatment Reducing Bacterial Cell Count by Escherichia Coli O157H7 on Beef Meat
(North Dakota State University, 2013)Since its emergence in 1980's, Escherichia coli O157:H7 has often been associated with the consumption of contaminated meat. E. coli O157:H7 continues to persist as a food borne pathogen not only in beef but many other ... -
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 ...