Index Catalog // ScholarsArchive@OSU

Establishment and dynamics of methane-oxidizing microbial communities in marine sediments

Creator:: Klasek, Scott A.
Abstract:: Marine sediments are vast sources and reservoirs of methane, a potent greenhouse gas. Most of this methane is anaerobically oxidized by archaea before it can reach the overlying ocean, though the efficiency of this process often depends on methane fluxes and mechanisms of fluid transport. Anaerobic methanotrophic archaea, or ANME,...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Scott A

Strain differentiation and detection of infectious hematopoietic necrosis virus

Creator:: LaPatra, Scott Edward
Abstract:: The virulence of selected isolants of infectious hematopoietic necrosis virus (IHNV) were differentiated and correlated with electrophoretic mobilities of virion structural proteins by sodium dodecylsulfate polyacrylamide gel electrophoresis. A type 1 electropherotype of IHNV was more virulent for kokanee salmon (Oncorhynchus nerka) and a type 2 strain more virulent for...
Resource Type:: Dissertation
Full Text:: hematopoietic necrosis virus AN ABSTRACT OF THE THESIS OF Scott Edward LaPatra for the degree of Doctor of

Reef Microbiomes of Mo'orea, French Polynesia, a Socio-Ecological Island System

Creator:: McConnell, Kaitlin M.
Abstract:: At a time of rapid global change, a socio-ecological system (SES) approach can provide a framework through which to quantify and communicate the risks and uncertainties of coupled human-natural systems. Islands, and tropical coral reef islands in particular, can be excellent models for SES research since they may be considered...
Resource Type:: Masters Thesis
Full Text:: mentioned: Dr. Byron Crump, thank you for scripting help and for your honest advice. Dr. Scott Heppell

Hydraulic predictors and seasonal distribution of Manayunkia speciosa density in the Klamath River, CA, with implications for ceratomyxosis, a disease of salmon and trout

Creator:: Jordan, Michelle S.
Abstract:: The freshwater polychaete Manayunkia speciosa was identified as an obligate host of the salmonid parasite Ceratomyxa shasta in 1997, prompting increased research on the small benthic invertebrate. Ceratomyxa shasta infection in fish can cause mortality, and presents a disease risk for both hatchery and wild salmon and trout. Ceratomyxa shasta...
Resource Type:: Masters Thesis
Full Text:: Klamath River between the Shasta (river kilometer (rkm) 288) and Scott (rkm 234) River tributaries

A Comparative Analysis of Rodent Species Shows Oxidative Stress Resilience and HSP70 Expression Levels Correlate with Species Longevity

Creator:: Sarker, Minhazur R.
Abstract:: Researchers of healthy aging have determined trends between a species’ body mass and its maximal life span (MLSP). Actual MLSPs are then compared to predicted MLSPs and reported as a longevity quotient (LQ). Long-lived mammals, such as humans and naked mole rats (NMR), have LQs ranging from 5.0 to 10.0,...
Resource Type:: Honors College Thesis
Full Text:: by Denham Harman in 1956 (Finch 1990; Salmon, Richardson et al

Virulence factors of Aeromonas salmonicida and their interaction with the salmonid host

Creator:: Rockey, Daniel D.
Abstract:: Selected secreted and cellular virulence factors of Aeromonas salmonicida were examined. A protocol was developed for the separation of two secreted proteases (P1 and P2 protease), and a trout erythrocyte specific hemolysin (T-lysin) from supernatants of cultures of the bacterium. Distinctions between the proteases were demonstrated using molecular weight determinations,...
Resource Type:: Dissertation
Full Text:: student friends and co-workers- Scott "Woody Marie" Lapatra, Jerri "Canyon Way" Bartholomew, Rich

Aryl Hydrocarbon Receptor Activation and the Prevention of Type 1 Diabetes

Creator:: Newman, Matthew
Abstract:: The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor that is an important regulator of immune responses in various disease models. In the non-obese diabetic (NOD) mouse model of type 1 diabetes, activation of this receptor leads to suppression of the autoimmune response and limits immune cell infiltration of...
Resource Type:: Honors College Thesis
Full Text:: (Richardson et. al 1952). Poland’s study showed that TCDD was more than 30,000-fold more effective than 3-MC

Development and use of genetic techniques for study of dairy Leuconostoc bacteria

Creator:: Wyckoff, Herbert Allen, 1961-
Resource Type:: Dissertation

Fecal Bacteroidetes host distributions and environmental source tracking

Creator:: Dick, Linda K.
Abstract:: Contamination of recreational and shellfish waters with fecal pollution is a major water quality issue with associated economic impacts and human health risks. Reliable fecal source identification and rapid, quantitative analyses are essential components of risk assessment. Enteric bacteria that are endemic to specific hosts have a potential role as...
Resource Type:: Dissertation
Full Text:: systems makes sensitivity an issue (Scott et al., 2002). The persistence of these substances in aquatic

Molecular cloning and analysis of the infectious hematopoietic necrosis virus genome and development of a subunit vaccine

Creator:: Gilmore, Robert D. (Robert Dean), 1956-
Abstract:: Complementary DNA (cDNA) clones were generated from the RNA genome of infectious hematopoietic necrosis virus (IHNV) by using random DNA oligomers to prime first strand synthesis. These clones were mapped to their respective locations on the genome and used to determine the nucleotide sequence of the nucleocapsid (N) gene and...
Resource Type:: Dissertation
Full Text:: fellow grad students, Mark Engelking (who used to buy coffee), Scott Manning (who still buys beer

Erythrocytic inclusion body syndrome : salmonid stock susceptibility, secondary diseases, and vitamin therapy

Creator:: Shanks, Carol A.
Abstract:: Erythrocytic inclusion body syndrome (EIBS) was artificially established in selected stocks of juvenile fall and spring chinook salmon (Oncorhynchus tshawytscha), chum salmon (0. keta), coho salmon (0. kisutch), Atlantic salmon (Salmo salar), and rainbow trout (0. mykiss). Adult spring chinook salmon were also artificially infected with the EIBS virus. Adult...
Resource Type:: Masters Thesis
Full Text:: , John Kaufman, Scott LaPatra, and Leslie Smith for their advice. This research was supported by the

Exploring new avenues of public education, diagnosis and treatment for traumatic brain injury: compiling professional opinions

Creator:: Nowlin, Taylor M.
Abstract:: Affecting an estimated 1.7 million people annually, traumatic brain injury has been labeled a major public health threat. As the leading cause of death and disability in young people, and the signature wound of the wars in Iraq and Afghanistan, the issue is drawing increased media attention. Analyses begin by...
Resource Type:: Honors College Thesis

Studies to improve lactic acid bacterial starter cultures

Creator:: Khosravi, Lewa
Abstract:: Three commercial sausage starter cultures were grown in an internal-pH-controlled medium (PHASE 4) and in a soluble phosphate-buffered medium. The cultures were tested by comparing viable counts before and after freezing at -40 C or freeze-drying and subsequent storage for 3 months in the frozen or dried state. Strains varied...
Resource Type:: Dissertation
Full Text:: . Hong, G.L., L.H. Cavis, G.H. Richardson, and L.H. Jonas. 1977. Production of bulk lactic culture

Adaptation of molecular filtration for recovery of fish viruses from water

Creator:: Watanabe, Robin Aiko
Abstract:: The effectiveness of tangential flow filtration (TFF) for recovery of infectious hematopoietic necrosis virus (IHNV) and infectious pancreatic necrosis virus (IPNV) from large volumes of water was evaluated. In laboratory studies, virus recovery from IHNV-seeded water following concentration by TFF was approximately 13%. However, addition of 0.1 and 1% FBS...
Resource Type:: Masters Thesis
Full Text:: , Jim L., Mercedes, Yen-Ling, Jerri, Cheryl, Dan, Jack, Craig, Scott, Warren, John K., Cindy, and Cathy

Biogeochemical Processing of Freshwater Carbon in the Anthropocene

Creator:: Buser, Jessica Z.
Abstract:: Freshwater systems cycle carbon along a spatial and temporal biogeochemical continuum, across which ecosystem processes contribute to transformations of organic matter (OM). Various ecological constraints impact rates OM transformation and production and consumption of the energetic end of respiration, methane. Microbiological processing and complete reduction of carbon substrates to methane...
Resource Type:: Dissertation
Full Text:: they participate in transforming DOM (Hood and Scott, 2008). Glacial mass loss results in acute

Application of bacteriocins produced by lactic acid bacteria in preserving dairy products and development of a selective medium for Leuconostoc isolation

Creator:: Benkerroum, Noreddine
Resource Type:: Dissertation
Full Text:: . Microbiol. 6:183-195. 3 8. Scott, R. 1981. Cheesemaking Practice. Applied Science Publishers, Ltd. London

Pathogenic and molecular characterization of three closely related isolates of infectious pancreatic necrosis virus (IPNV)

Creator:: Bruslind, Linda D.
Abstract:: Three closely related isolates belonging to the A₁ serotype of infectious pancreatic necrosis virus (IPNV) were selected for comparison, to provide insight into the nature of variation in the virulence of IPN viruses. Brook trout fry (Salvelinus fontinalis) were experimentally infected with the three isolates by immersion. Cumulative mortalities over...
Resource Type:: Dissertation
Full Text:: thankfulness for my husband, Scott. He deserves the degree as much as I do. 1 TABLE OF CONTENTS Page

Properties of the Glycoprotein of infectious hematopoietic necrosis virus

Creator:: Engelking, Henry Mark
Abstract:: The glycoprotein, G, of infectious hematopoietic necrosis virus, IHNV, was shown to be the viral protein which elicits and reacts with neutralizing antibodies. The G protein also confers protective immunity on immunized susceptible salmonid hosts to IHNV. The other three structural proteins of IHNV, N, Ml, and M2, do not...
Resource Type:: Dissertation
Full Text:: . Ed Stephens, Bob Gilmore, Scott Manning, Manley Huang, Shun (Boogey) Wen Chen, Jim Fredrick, Jay

Development of monoclonal antibodies against the myxosporean, ceratomyxa shasta, and characterization of the salmonid host response

Creator:: Bartholomew, Jerri Lee
Abstract:: Monoclonal antibodies (Mabs) were produced against the myxosporean parasite, Ceratomyxa shasta, and were characterized by indirect immunofluorescent techniques, western blot analysis, and immunoelectron microscopy. The resulting Mabs reacted specifically with the trophozoite and sporoblast stages of the parasite, but not with the mature spore, indicating that certain antigens are stage-specific....
Resource Type:: Dissertation
Full Text:: friendship, advice, and support: Dan Rockey, Susan Gutenberger, Steve Piacentini, Craig Banner, Scott

An investigation of carbon and nitrogen metabolism through a genomic analysis of the genus Nitrobacter

Creator:: Starkenburg, Shawn R.
Abstract:: The chemolithoautotrophic nitrite oxidizing bacteria (NOB) participate in the biogeochemical cycling of nitrogen by catalyzing and conserving energy from the oxidation of nitrite (NO₂-) to nitrate (NO₃-) via a nitrite oxidoreductase (NXR). The main objective of this work was to comparatively annotate and analyze the genome sequences of Nitrobacter winogradskyi...
Resource Type:: Dissertation

Impacts of multispecies parasitism on coho salmon (Oncorhynchus kisutch) in Oregon

Creator:: Ferguson, Jayde A.
Abstract:: Diseases caused by parasites are recognized as significant sources of mortality in wild fish populations. I assessed the impacts of multispecies parasitism on a threatened stock of juvenile coho salmon (Oncorhynchus kisutch). A crucial prerequisite to this research was proper identification of parasites, which can be difficult for species lacking...
Resource Type:: Dissertation
Full Text:: , 1988; Royce and Rossignol, 1990; Scott and Smith, 1994; Galvani, 2003). Although Crofton’s

Cooxidation by three butane-grown bacteria and mechanism-based inactivation of butane monooxygenase

Creator:: Storfa, Ryan T.
Abstract:: Butane-grown cells of Pseudomonas butanovora, Nocardioides sp. CF8 and Mycobacterium vaccae JOB5 were tested for their ability to cooxidize methane, ammonia and ethylene. Less than 10 nmol of methane were degraded by each of the bacteria (0.17-0.35 mg protein) in 30 minutes. Hydroxylamine and nitrite accumulated when Nocardioides CF8 and...
Resource Type:: Masters Thesis

The growth of Chlorella vulgaris 211/8K in diluted swine manure as a function of temperature, light intensity, depth, and retention time

Creator:: Seward, Robert Albert
Resource Type:: Masters Thesis

Transcription in Bacillus subtilis and Bacillus bacteriophages

Creator:: Kuhl, Sarah Jane
Resource Type:: Dissertation
Full Text:: presented January 5, 1984 Typed by Sylvia Scott for Sarah Jane Kuhl ACKNOWLEDGMENTS I thank my major

Molecular characterization of the MX genes of rainbow trout (Oncorhynchus mykiss)

Creator:: Trobridge, Grant David
Abstract:: The Mx protein family of rainbow trout (Oncorhynchus mykiss) was characterized at the molecular level. With primers derived from a partial sequence of Perch (Perca fluviatis) Mx genomic DNA, a partial rainbow trout Mx genomic DNA sequence was obtained by polymerase chain reaction (PCR) amplification. All salmonid fish investigated contained...
Resource Type:: Dissertation

Advances in Freshwater Cyanobacterial Genomics

Creator:: Brown, Nathaniel M.
Abstract:: Limnology is undergoing a transition to high-throughput -omic analysis of freshwater bacterial communities. An important first step in making the transition is to characterize several genomes that can be used as references to guide metagenome assembly and analysis. Here I characterize four new freshwater cyanobacterial genomes, a pair of lake...
Resource Type:: Dissertation

An electron micrographic study of IHNV and IPNV : development of methods for determining particle-infectivity ratios and for rapid diagnosis

Creator:: Durrin, Linda Kay
Abstract:: A rapid virus detection method was developed for Infectious Hemotopoietic Necrosis Virus (IHNV). The virus detection method could be applied to Infectious Pancreatic Necrosis Virus (IPNV) under certain conditions. It was possible to detect IHNV to a lower limit of 1.7 X 10⁴ Tissue Culture Infectious Dose for 50% (TCID₅₀)...
Resource Type:: Masters Thesis
Full Text:: Scott (1948) had used EM in the diagnosis of smallpox. It was not until the 1960's though that advances

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

Ecology of a soil population of Rhizobium leguminosarum bv. trifolii

Creator:: Leung, Kam-tin
Resource Type:: Dissertation

Social Evolution and Regulatory Architecture of Pseudomonas aeruginosa Quorum Sensing

Creator:: Asfahl, Kyle L.
Abstract:: Cell-cell communication in bacteria is understood to facilitate the coordination of population-wide cooperative behavior in the form of concerted gene expression. The opportunistic pathogen Pseudomonas aeruginosa uses such a communication mechanism to regulate a large group of genes important to virulence strategies in this bacterium. This general mechanism of communication...
Resource Type:: Dissertation

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

The Influence of Microbial Communities on Spatiotemporal Elemental Cycling in Coastal Margins Revealed by Community- and Population-level Genomics and Proteomics

Creator:: Kieft, Brandon P.
Abstract:: Biotic and abiotic processes at continent-ocean interfaces cycle a disproportionate mass of carbon and nutrients relative to their global surface area, and microbial activity is a principal determinant of organic and inorganic matter flux in these transition zones. Most studies using modern high-throughput ‘omics techniques to link microorganisms with costal...
Resource Type:: Dissertation

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:: school. I need to thank my parents, Dave and Kathy (both former teachers), and my siblings, Scott and

Recombinant vaccines against infectious hematopoietic necrosis virus : bacterial systems for vaccine production and delivery

Creator:: Simon, Benjamin E.
Abstract:: Several systems were examined for the production and delivery of recombinant vaccines for fish. C. crescentus was employed to produce a fragment of the IHNV glycoprotein. When administered by injection to 0.5 gram rainbow trout (Oncorhynchus mykiss), one of the fusion proteins (184 amino acids of the IHNV glycoprotein fused...
Resource Type:: Dissertation

Ruminal Biodegradation of Heterocyclic Toxic Compounds

Creator:: Tanaree, Dan D.
Abstract:: Cyclic nitramines are a class of compounds that include most of the commonly used explosives today. These are among the most common toxicants released into the environment as a result of human activity, generated on military ranges, battlefields, and production sites. Of these, hexahydro-1,3,5-trinitro-1,3,5- triazine (RDX) is of particular interest,...
Resource Type:: Dissertation

Chromatophores as cell-based biosensors for the detection of chemically and biologically toxic substances

Creator:: Dukovcic, Stephanie R.
Abstract:: Cell-based biosensors are function-based detectors that use the physiological response of a living cell to sense biologically stimulating agents. This emerging technology extends the application of current detection methods by reporting on the toxicity of a sample and the potential to cause disease. Previously, Betta splendens erythrophores have been described...
Resource Type:: Dissertation

Molecular and genetic assessment of selected antiporters and methyl-accepting chemotaxis proteins in Vibrio cholerae

Creator:: Quinn, Matthew J.
Abstract:: The pathogen Vibrio cholerae uses cations as a primary currency of virulence and environmental persistence, using gradients of those cations to move, acquire nutrients, and control virulence gene expression. An understanding of the overlapping roles of bioenergetics and chemotaxis in the virulence and environmental survival of V. cholerae issues from...
Resource Type:: Dissertation

Genome-enabled investigation of the minimal growth requirements andphosphate metabolism for Pelagibacter marine bacteria

Creator:: Carini, Paul J.
Abstract:: Members of the SAR11 clade of heterotrophic α-proteobacteria are ubiquitous and abundant in the world's oceans where they are thought to play a pivotal role in the global carbon cycle. The first SAR11 bacterium cultivated in vitro, 'Candidatus Pelagibacter ubique' HTCC1062 (Ca. P. ubique), was isolated by dilution into sterile...
Resource Type:: Dissertation

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