Browsing by Author "Liles, Mark"

Now showing items 1-20 of 48

Application of Metagenomics for Discovery of Natural Products and Virophages

Zhou, Jinglie (2016-05-24)

Metagenomics provided a powerful insight into an as-yet-uncultured bacterial community in different environments through construction of clone libraries and shotgun sequencing, therefore presenting potential in drug and ...

Bacteriophages as a Sustainable Food Safety Approach for Vegetable Production in Controlled Environment Agriculture Systems

Mickos, Vania, P. (2023-11-15)

Vegetables have frequently been contaminated with Salmonella enterica, E. coli O157:H7, and Listeria monocytogenes. Food safety concerns have boosted interest in controlled environmental agriculture (CEA) systems, ...

Characterization of root colonization by the biocontrol bacterium Bacillus firmus strain GB126

Durham, Mark (2013-07-02)

A new biological control treatment for plant-parasitic nematodes was marketed throughout the U.S. starting in 2010. The treatment consists of the biocontrol agent Bacillus firmus strain GB126. Following commercial release ...

Characterization of Viral Communities in Soil, Activated Sludge, and Influent

Consuegra, Erin (2009-07-15)

Viruses are the most abundant yet uncharacterized biological entities on the planet. This thesis is a survey of viral communities in soil, activated sludge (AS), and influent (IN). Both culture-dependent and culture-independent ...

Comparative Genomic Analysis and Evaluation of Control Strategies for Hypervirulent Aeromonas hydrophila in Channel Catfish (Ictalurus punctatus)

Rasmussen-Ivey, Cody (2019-07-01)

This dissertation is a reflection of the insight gained through the genetic analyses of a hypervirulent pathotype of the Gram-negative pathogen, Aeromonas hydrophila, (vAh) in the context of enzymatic, challenge, growth, ...

Determining the spatial and seasonal influences of microbial community composition and structure from the Hawaiian anchialine ecosystem

Hoffman, Stephanie (2016-12-09)

Characterized as coastal bodies of water lacking surface connections to the ocean but with subterranean connections to the ocean and groundwater, habitats belonging to the anchialine ecosystem occur worldwide in primarily ...

Discovery and characterization of antibacterial compounds expressed by soil microorganisms using culture-dependent and -independent approaches

Nasrin, Shamima (2015-07-31)

The emergence of multidrug-resistant pathogens has increased the demand for discovery of novel antibiotics. Both culture-dependent and culture-independent approaches were used to discover antibiotics against methicillin-resistant ...

Discovery and Characterization of Novel Antibiotic Synthesis and Resistance Determinants from Diverse Microbial Metagenomes

Parsley, Larissa (2010-07-09)

The application of metagenomics to investigate the genetic and functional diversity of as-yet-uncultured microorganisms from natural environments has been one of the most significant breakthroughs in molecular microbiology. ...

Discovery of the Gene Cluster in Bacillus velezensis AP183 Responsible for Bacillusin A Biosynthesis, Evaluation of the Use of B. velezensis AP183 in Preventing Staphylococcus aureus Infection, and Identification of Bacteriocins From a Soil Metagenome.

Afroj, Sayma (2021-11-29)

The spread of multidrug resistance among pathogenic bacteria is increasing worldwide. One of the multidrug resistance pathogens is methicillin-resistant S. aureus (MRSA) which poses a significant threat to health and causes ...

Discovery, expression, and characterization of biosynthetic gene clusters encoding antimicrobial secondary metabolites from a soil metagenome and cultured Actinobacteria

Sandoval-Powers, Megan (2022-07-19)

Dating back to the discovery of penicillin in 1928, nature and its diverse microbial life has been the most prolific source of antimicrobial compounds. These bioactive compounds are often derived from microbial secondary ...

Discovery, Isolation and Characterization of Bacteriophages Specific for Edwardsiella ictaluri

Walakira, John (2008-05-15)

Two novel bacteriophages that infect Edwardsiella ictaluri, the causative agent of enteric septicemia of catfish (ESC), were isolated from aquaculture pond water and from a diseased channel catfish. Both phages (FeiDWF and ...

The diversity of oomycetes associated with cotton seedlings in Alabama and the assembly of the spermosphere microbiome of cotton and soybean

Olofintila, Oluwakemisola (2022-11-21)

Cotton and soybean are major crops in the US grown for fiber and protein. Fungal and oomycete pathogens can affect cotton and soybean seedlings resulting in seed and seedling damping-off. Many different oomycete species ...

Effect of Management on the Bacterial Community Present in Poultry Litter

Williams, Zachary (2012-07-16)

An unwanted byproduct of commercial broiler chicken grow out is thousands of tons of litter. This litter is the material on which the broiler chicken spends its entire life. Litter consists of a starting material, ...

Effects of dietary protein intake on fecal and milk microbiota

Warren, Matthew (2016-08-03)

Microorganisms in milk have traditionally been assumed to be contaminants, but recent data suggest that these microbial communities naturally reside in milk and may contribute to vital maternal effects. Investigators have ...

Evaluating Efficacy of Plant Growth Promoting Rhizobacteria for Promoting Growth and Preventing Disease in both Fish and Plants

Williams, Malachi (2020-04-22)

Plant growth promoting rhizobacteria (PGPR), are bacteria residing within the rhizosphere of a plant, that elicit health benefits to the plant (Kloepper and Schroth, 1978; Kloepper et al., 2004). To understand the growth ...

Evaluation of Biological Agents for Controlling Enteric Septicemia of Catfish

Carrias, Abel (2011-05-03)

Enteric septicemia of catfish (ESC), caused by the bacterium Edwardsiella ictaluri, is considered the most important bacterial disease of cultured channel catfish Ictalurus punctatus and is estimated to cost the industry ...

Evaluation of dietary immunostimulants and probiotics on growth performance and health indices of channel catfish, tilapia, and shrimp.

Cacot, Guillaume (2023-08-07) ETD File Embargoed

Channel catfish, Nile tilapia, and whiteleg shrimp are three major aquaculture species worldwide. Growth performance and disease mortality are common bottlenecks within these culture systems. Feed supplementation with ...