Index Catalog // ScholarsArchive@OSU

Cloning and biochemical characterization of the hectochlorin biosynthetic gene cluster from the marine cyanobacterium Lyngbya majuscula

Creator:: Ramaswamy, Aishwarya V.
Abstract:: Cyanobacteria are rich in biologically active secondary metabolites, many of which have potential application as anticancer or antimicrobial drugs or as useful probes in cell biology studies. A Jamaican isolate of the marine cyanobacterium, Lyngbya majuscula was the source of a novel antifungal and cytotoxic secondary metabolite, hectochlorin. The structure...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Aishwarya V. Ramaswamy for

Analysis of immune modulators in rainbow trout (Oncorhynchus mykiss)

Creator:: Mourich, Dan V.
Abstract:: The immune systems of various teleost fish have been studied in some detail for the past several decades. One aspect of fish immunity, that of endogenously produced modulating factors, has recently received a great deal of attention. Understanding the functions and roles of endogenous factors that regulate fish immunity is...
Resource Type:: Dissertation
Full Text:: mykiss) AN ABSTRACT OF THE THESIS OF DAN V. MOURICH FOR THE DEGREE OF DOCTOR OF PHILOSOPHY IN

Comparative Genomics of Freshwater Bloom-Forming Cyanobacteria and Associated Organisms

Creator:: Driscoll, Connor B.
Abstract:: The advent of improved DNA sequencing technologies has allowed the analysis of various microbial communities. Bloom-forming freshwater cyanobacteria can produce toxins and taste-and-odor compounds that can negatively affect drinking water supplies. Here, I have employed second- and third-generation sequencing technologies to characterize bloom-forming freshwater cyanobacterial genomes and their associated heterotrophic...
Resource Type:: Dissertation

The Genome of Pseudomonas fluorescens Strain R124 Demonstrates Phenotypic Adaptation to the Mineral Environment

Creator:: Barton, Michael D., Petronio, Michael, Giarrizzo, Juan G., Bowling, Bethany V., and Barton, Hazel A.
Abstract:: Microbial adaptation to environmental conditions is a complex process, including acquisition of positive traits through horizontal gene transfer or the modification of existing genes through duplication and/or mutation. In this study, we examined the adaptation of a Pseudomonas fluorescens isolate (R124) from the nutrient-limited mineral environment of a silica cave...
Resource Type:: Article
Full Text:: ):4793. DOI: 10.1128/JB.00825-13. J. Bacteriol. Bethany V. Bowling and Hazel A. Barton Michael D

Comparative genomics of Vibrio and characterizing microbial communities at a shellfish hatchery

Creator:: Delgado, Hanna
Abstract:: Vibrio bacteria are commonly found in freshwater, marine, and estuarine environments. Members of this genus can exist in commensal relationships with marine animals or as planktonic bacteria, however, they are well known for their roles as pathogens towards humans and animals. In this dissertation, I investigated aspects of host-bacteria relationships...
Resource Type:: Dissertation
Full Text:: of bacteria allow cells to detect chemical or physical gradients and respond with motility. The V

Soil and rumen microbial responses to photooxidized grass straw

Creator:: Park, Jerry Eugene
Abstract:: Straw has many uses, as feed, roughage, animal bedding, but these requirements are not sufficient to utilize the available production. In areas where grasskseed is produced, post-harvest straw is burned in the field to help prevent crop disease the following year. This treatment is very wasteful in terms of straw...
Resource Type:: Masters Thesis
Full Text:: Ryegrass (Lolium multiflorum) straws were mixed with distilled water in 0. 5% w/v concentrations and ex

Specific indicator organisms can define the magnitude and origins of non-point pollution in rural environments

Creator:: Lamka, Karla Gail
Abstract:: A comprehensive study was made on the impact to surface and ground water pollution by a recently populated rural neighborhood located in the foothills of western Oregon. A stream originating in a limited access forest and flowing through a modern zoned housing development was routinely monitored. Sampling was performed during...
Resource Type:: Masters Thesis
Full Text:: approved: Redacted for Privacy Ramon J. --V idler A comprehensive study was made on the impact to

An ecological study of the lactic streptococci

Creator:: Radich, Paul Christian
Abstract:: In an attempt to determine the natural habitat of Streptococcus lactis, Streptococcus cremoris, and Streptococcus diacetilactis 27 different species of vegetables, 18 species of fruits and many individual cow raw milk samples were examined. S. lactis was found to occur on potatoes, corn, cucumbers, peas, beans, and cantaloupe. In each...
Resource Type:: Masters Thesis
Full Text:: - cocci or other streptococci. In more recent times Sherman and Hastings (28, p. 11 -12) found

Ecophylogenetic Characterization of the Gut Microbiome of At-risk Companion and Food Animals

Creator:: Kirchoff, Nicole S.
Abstract:: Agricultural and companion animals are integral to our way of life as they provide us with nourishment, financial resources, transportation, and companionship. However, pets, managed animals in the agricultural industry, as well as wild populations of food animals are all subject to health and mortality risks. The gut microbiome is...
Resource Type:: Dissertation
Full Text:: ; Sherman et al., 1996). While behavior modification or environmental change can significantly reduce

The effects of single and multiple pathogen and parasite infections on juvenile chinook and coho salmon during early marine residency

Creator:: Sandell, Todd A.
Abstract:: Nearly 3000 juvenile Chinook (Oncorhynchus tshawytscha) and coho (O. kisutch) salmon captured in nearshore waters off the coasts of Washington and Oregon from 1999-2004 were tested for infection by Renibacterium salmoninarum, Nanophyetus salmincola, and skin metacercariae. First, three quantitative PCR primer/probe sets were compared for detection of R. salmoninarum; amplification...
Resource Type:: Dissertation
Full Text:: part because it is transmitted horizontally in both fresh (Mitchum & Sherman 1981) and salt water

ScholarsArchive@OSU

Cloning and biochemical characterization of the hectochlorin biosynthetic gene cluster from the marine cyanobacterium Lyngbya majuscula

Analysis of immune modulators in rainbow trout (Oncorhynchus mykiss)

Comparative Genomics of Freshwater Bloom-Forming Cyanobacteria and Associated Organisms

The Genome of Pseudomonas fluorescens Strain R124 Demonstrates Phenotypic Adaptation to the Mineral Environment

Comparative genomics of Vibrio and characterizing microbial communities at a shellfish hatchery

Soil and rumen microbial responses to photooxidized grass straw

Specific indicator organisms can define the magnitude and origins of non-point pollution in rural environments

An ecological study of the lactic streptococci

Ecophylogenetic Characterization of the Gut Microbiome of At-risk Companion and Food Animals

The effects of single and multiple pathogen and parasite infections on juvenile chinook and coho salmon during early marine residency

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