Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 14 of 14 for “"Vibrionaceae"”.
-
Vibrionaceae genome dynamics
*Vibrionaceae* is a family in the class *Gammaproteobacteria* that has 11 genera that are mostly found in marine niches. It is an important family from a human health perspective due to *Vibrio cholerae* causing millions of infections every year. Other members of the family cause millions of …
-
Ecology and population structure of Vibrionaceae in the coastal ocean
… populations of the gamma-proteobacterial family, Vibrionaceae, are ecologically specialized by investigating the distribution across a wide range of environmental categories, such as marine invertebrates or particles in the water column. Additionally, it seeks to determine whether in situ …
-
Ecology and population structure of vibrionaceae in the coastal ocean
… populations of the gamma-proteobacterial family, Vibrionaceae, are ecologically specialized by investigating the distribution across a wide range of environmental categories, such as marine invertebrates or particles in the water column. Additionally, it seeks to determine whether in situ …
-
Niche adaptations of the vibrionaceae, from the coastal ocean to the laboratory
… marine heterotrophic family of bacteria, the Vibrionaceae. In chapter 2, I review the current knowledge of the environmental conditions and habitats in which Vibrionaceae populations are found. Through a meta-analysis of Vibrio abundance and bulk environmental variables, I show that …
-
Fine-scale ecological dynamics of closely related marine microbes
… reveals otherwise concealed dynamics. I use the Vibrionaceae, an ecologically diverse family of marine heterotrophs, as a model system. First, I review past studies on environmental associations of the Vibrionaceae, showing that few abiotic parameters have consistent predictive value, and that …
-
Symbiotic Associations and Pathogenic Potential of Vibrios In the North Inlet Estuary
… biogeography and pathogenic potential of Vibrionaceae from the pristine intertidal North Inlet, SC saltmarsh. The ability of several Vibrio species is</p> <p>Salt marshes along the South Eastern US coast are largely dominated by the macrophytes Spartina alterniflora (Loisel) and Juncus …
-
Aquatic microenvironments in bacterial ecology and diversity
… several angles: (i) Within the bacterial family Vibrionaceae is there evidence for microenvironmental specialization or functional differentiation? (ii) Is there small scale clustering of bacteria around phytoplankton in the coastal ocean? Microdiverse clusters (< 1% 16S rRNA gene divergence) of …
-
Experimental studies of RctB- initiator of Vibrio cholerae chromosome II replication: genetic engineering, protein purification, and protein crystals
<p>Vibrio cholerae, a member of the Vibrionaceae family, is notorious as the causative agent of acute gastrointestinal disease known as cholera. Genetic information in members of the Vibrionaceae family is distributed between two chromosomes that are distinctively maintained. In V. cholerae, the …
-
Impacts of Microenvironment On Distributions and Activities of Bacteria In A Salt Marsh Environment
… burrows become significantly enriched in Vibrionaceae, and specifically Vibrio parahaemolyticus (4875 CFU mL-1), relative to creek waters (193 CFU mL-1) and interstitial porewaters (128 CFU mL-1). As evidenced from dye transport studies, tidal inundation flushes and transports the …
-
Novel phylogenetic approaches to problems in microbial genomics
… bacterial populations. Analysis of 1000 marine Vibrionaceae strains by AdaptML finds evidence that niche adaptation may influence patterns of genetic differentiation in bacteria. In Chapter 2, I introduce the algorithm AnGST, which can infer the evolutionary history of a gene family in a …
-
In vitro activity of cephalosporins against selected gram negative bacilli : [a thesis]
… anitratus (3), Acinetobacter lwoffi (1); and Vibrionaceae: Aeromonas hydrophilia (4), Plesiomonas shigelloides (1), Campylobacter jejuni (5)). </p>This investigation, which studied the activity of all the mentioned cephalosporins against each strain, suggests that resistance to the third …
-
The Influence of Prebiotics, Probiotics, and Exposure to an Opportunistic Pathogen on the Intestinal Microbiome of White Shrimp (Litopenaeus vannamei)
… Flavobacteriaceae, Demequinaceae, Vibrionaceae, Shewanellaceae, Rhodobacteriaceae, and Rubritaleaceae were relatively stable across treatments and time points. Sequencing methods such as metagenomics or metatranscriptomics should be utilized for a higher microbiome resolution. …
-
Optimisation of protein and lipid extraction from low-value fish sources and investigation of high-value applications
… fish species and only two bacterial families (Vibrionaceae and Lactobacillaceae) were detected in the core microbiota of all three fish. Unique and novel viromes that separate distinctly in relation to fish species, and diverge from ocean and human viromes, were also found. Subsequent chapters …
-
Functional analysis of the role of alternative sigma factors in Vibrio parahaemolyticus host pathogen interactions
… of conservation of each sigma. All members of Vibrionaceae were found to have single copies of sigmas RpoD and RpoH. A majority of Vibrio species possess FliAP, the polar flagella sigma factor; conversely distribution of the lateral flagella sigma factor, FliAL, is mostly clade specific and …