Index Catalog // ScholarsArchive@OSU

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:: always been needed to control my predilection for obfuscation. I am grateful to Alec Maule and Carl

Impacts of microbial chemical interactions on marine plankton physiology

Creator:: Moore, Eric R.
Abstract:: The bioavailability of chemical compounds in the marine environment fundamentally influences the growth and physiology of microorganisms. Organic and inorganic chemicals that are produced by some marine plankton can be consumed by other plankton for energy production, growth, or to initiate essential physiological processes. Cultures of the diatom Thalassiosira pseudonana,...
Resource Type:: Dissertation
Full Text:: am incredibly grateful to Brianna Bullington, Jordan Coelho, Alec Weaver, Cleo Davie-Martin, Alex

Glucocorticoid regulation of salmonid B lymphocytes

Creator:: Tripp, Ralph A.
Abstract:: The in vitro effects of cortisol in regulating salmonid B cell functions were investigated. B cells at three distinct stages of differentiation were examined for cortisol sensitivity. B lymphocyte responses were examined 1) during the early stage of the precursor, 2) during the intermediate stage of differentiation associated with clonal...
Resource Type:: Dissertation
Full Text:: his laboratory. To my good friend Alec G. Mau le is extended my deepest appreciation. Many of the

Susceptibility of select salmonids to Myxobolus cerebralis and effects of exposure on anadromous salmonids in Oregon

Creator:: Sollid, Sarah A.
Abstract:: Myxobolus cerebralis, a myxozoan parasite of salmonids, is the causative agent of whirling disease. The parasite is considered widespread throughout northeastern Oregon in the Grande Ronde and Imnaha River basins where threatened and endangered salmonid populations exist. The work presented in this thesis comprises several studies that assess the effects...
Resource Type:: Masters Thesis
Full Text:: results, and all phases of manuscript preparation. Harriet V. Lorz and Donald G. Stevens assisted with

Immune responses of juvenile chinook salmon (Oncorhynchus tshawytscha) to p,p-̓DDE and tributyltin

Creator:: Misumi, Ichiro
Abstract:: In this thesis, we examined the effects of the exposures to anthropogenic pollutants on the fish, primarily juvenile chinook salmon, immune system using newly and recently developed immune assays. In addition, we developed a new assay for measuring immunocompetence of fish. In the first chapter, the Alamar Blue assay was...
Resource Type:: Masters Thesis
Full Text:: Juvenile spring chinook salmon (Marion Folks stock) weighing 150-200 g were housed at the Fish Performance

A study of Myxobolus cerebralis in the Lostine River, Oregon : epizootiology, distribution and implications for resident and anadromous salmonids

Creator:: Sandell, Todd A.
Abstract:: Myxobolus cerebralis, a myxozoan parasite that infects almost all species of wild and cultured salmonids, was first identified in northeastern Oregon in the Lostine River in 1986. Fish that are heavily infected with M. cerebralis develop whirling disease, which was determined to be the cause of catastrophic declines in rainbow...
Resource Type:: Masters Thesis
Full Text:: ç2hair of Department of Microbiolo Dean of G '- School I understand that my thesis will become part of

Distribution and coinfection of microparasites and macroparasites in juvenile salmonids in three upper Willamette River tributaries

Creator:: Roon, Sean Robert
Abstract:: Wild fish populations are typically infected with a variety of micro- and macroparasites that may affect fitness and survival, however, there is little published information on parasite distribution in wild juvenile salmonids in three upper tributaries of the Willamette River, OR. The objectives of this survey were to document (1)...
Resource Type:: Masters Thesis
Full Text:: trematode species Gyrodactylus colemanensis and G. salmonis found that about 2.3 x 105 live parasites/day

Ceratomyxa shasta-related concerns for reintroduced anadromous salmonids into the Upper Klamath Basin, CA-OR, USA

Creator:: Hurst, Charlene N.
Abstract:: The myxozoan parasite of salmonids, Ceratomyxa shasta, is established throughout the Klamath River, CA-OR, with high parasite densities below the series of dams and above the dams (upper basin) in the northernmost tributary, the Williamson River (WMR). Two objectives were designed to address concerns about C. shasta effects on reintroduced...
Resource Type:: Masters Thesis
Full Text:: Beaver Creek, the latter a section of the lower Klamath River (Maule et al., 2009). Although about 20

Re-examining Ceratomyxa shasta in the Pacific Northwest

Creator:: Stinson, Matthew E. T.
Abstract:: Ceratomyxa shasta infects salmonids in the Pacific Northwest (PNW) of North America, occasionally causing losses in wild and captive populations. Host-specific parasite genotypes (O, I, II, III) were previously characterized molecularly using markers in the ribosomal DNA and phenotypically by type host in the Klamath River, CA/OR. This thesis sough...
Resource Type:: Masters Thesis
Full Text:: suffered >92.3% mortality (Maule et al. 2009). This difference in mortality led researchers to examine

Erythrocytic inclusion body syndrome : a viral disease of salmonid fish

Creator:: Piacentini, Stephen Carl
Abstract:: Erythrocytic inclusion body syndrome (EIBS), a viral disease of salmon, was investigated. Reliable artificial infections were established in coho salmon (Oncorhynchus kisutch) via intraperitoneal injection of homogenized kidney, spleen, and blood from naturally infected animals. By examining the exposed fish periodically for viral inclusion bodies and hematocrits, the disease progression...
Resource Type:: Masters Thesis
Full Text:: Microbiology Redacted for privacy Dean of the G to School Date thesis is presented April 25,1989 Typed by

Spatiotemporal Distribution of Ceratonova shasta and its Genotypes in the Deschutes River Basin

Creator:: Hubbard, Kalyn M.
Abstract:: The waterborne, myxozoan parasite Ceratonova shasta is endemic to the Pacific Northwest and can be lethal to its secondary salmonid host, including the culturally, economically, and recreationally important spring Chinook salmon (Oncorhynchus tshawytscha) of the Deschutes River, OR. Previously described genotypes of C. shasta exhibit specificity with their salmonid hosts....
Resource Type:: Masters Thesis
Full Text:: and contribute to suppression of the salmonid immune system (Slater et al., 1994; Maule et al., 1996

Chemical and Genetic Investigations of Toxic Freshwater Cyanobacterial Blooms for Improved Monitoring and Understanding of Lake Ecology

Creator:: Collart, Lindsay P.
Abstract:: Toxin production by cyanobacterial harmful algal blooms (cyanoHABs) in freshwater systems has lasting ecological and human impacts. Nutrients, light availability, hydrology, and microbial community composition impact the frequency and intensity of toxic cyanoHABs. Climate change will exacerbate toxic cyanoHABs, making real time and predictive monitoring a vital tool for managing...
Resource Type:: Dissertation
Full Text:: Fisher, Chih-Ping, and Jordan Coelho for making the lab and trips to the field enjoyable. Alec Weaver

Preventing crown gall disease using oncogene silencing or VirE1-expressing transgenics

Creator:: Humann, Jodi L.
Abstract:: Crown gall disease is caused by the ubiquitous soil bacterium Agrobacterium tumefaciens which transfers a portion if DNA (T-DNA) into the plant cell. Preventing infection by using the biocontrol strain Agrobacterium radiobacter K84 is currently the only defense for crown gall. Two different resistance strategies were examined in this work....
Resource Type:: Dissertation
Full Text:: , IWD2 Oe H,d,oLases' (wA B G c D ) VG 0WE2U ' WA Phenolics, sugars, and acidity from wounded plant

Silencing of Agrobacterium tumefaciens T-DNA oncogenes by cosuppression

Creator:: Lee, Hyewon
Abstract:: We have developed crown-gall resistant transgenic plants capable of suppressing Agrobacterium tumefaciens T-DNA oncogenes. Crown gall tumors result from overproduction of auxin and cytokinin in plant cells transformed by A. tumefaciens. High phytohormone levels result from expression of two auxin biosynthetic genes, tryptophan monooxygenase (iaaM) and indole acetamide hydrolase (iaaH),...
Resource Type:: Masters Thesis
Full Text:: the VirA/G system (Close et al., 1985; Gray et al., 1992; Huang et al., 1990; Kemner et al., 1997

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
Full Text:: alignment of anatoxin-a clusters from Cyanobacteria. anaA-G and anaI are all conserved in Anabaena sp. WA102

Intestinal Lesions and Parasites Associated with Senescence and Prespawn Mortality in Chinook Salmon (Oncorhynchus tshawytscha)

Creator:: Nervino, Stephanie A.
Abstract:: Pre-spawning mortality (PSM) presents a major problem for population recovery of spring Chinook salmon (Oncorhynchus tshawytscha) in the Willamette River basin. In certain reaches and years, PSM has exceeded 90%. Histology has been used as the primary diagnostic method to investigate PSM in the Chinook Salmon, and a collection of...
Resource Type:: Masters Thesis

Biophysical properties of the turnip yellow mosaic virus explored by coat protein mutagenesis

Creator:: Powell, Joshua D.
Abstract:: Plant viruses have been instrumental in our understanding of the biophysical properties pertaining to non-enveloped icosahedral virus particles. A substantial amount of research has been performed over five decades on Turnip yellow mosaic virus (TYMV), arguably one of the most extensively studied icosahedral plant viruses and the type-member of the...
Resource Type:: Dissertation
Full Text:: similar positioning and disorder tendencies in the N-terminus, the F-G loop that forms the exterior

In vitro regulation and cultivation of salmonid lymphocytes

Creator:: DeKoning-Loo, Jenefer
Abstract:: The foundation of the research compilation presented here began with the derivation of an improved method for obtaining optimal in vitro mitogenic responses in salmonid lymphocyte cultures by utilizing autologous or homologous plasma as the primary serum supplement. It was observed that lymphocytes which were previously unresponsive to mitogenic challenge...
Resource Type:: Dissertation
Full Text:: Complement 147 Sheep red blood cell (SRBC) haptenation 147 LIST OF FIGURES Figures g 2.1 Proliferation

Phylogeny and intracellular survival of Renibacterium salmoninarum

Creator:: Gutenberger, Susan K.
Resource Type:: Dissertation
Full Text:: >0.89 to other high G+C gram-positive bacteria. A phylogenetic tree diagrammed its evolutionary

Host-pathogen Interactions of Respiratory RNA Viruses and the Application of Recombinase Polymerase Amplification for Viral Diagnostics

Creator:: Prescott, Meagan A.
Abstract:: Humans and viral disease are inextricably intertwined. Viral disease plays an immeasurable role in human life, from the disease and economic burden associated with every facet of contending with human viral disease, to managing the consequences of viral disease in organisms important to our food supply, economy, and entertainment. The...
Resource Type:: Dissertation
Full Text:: (G), fusion glycoprotein (F), and the small hydrophobic protein (SH). These transmembrane envelope

ScholarsArchive@OSU

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

Impacts of microbial chemical interactions on marine plankton physiology

Glucocorticoid regulation of salmonid B lymphocytes

Susceptibility of select salmonids to Myxobolus cerebralis and effects of exposure on anadromous salmonids in Oregon

Immune responses of juvenile chinook salmon (Oncorhynchus tshawytscha) to p,p-̓DDE and tributyltin

A study of Myxobolus cerebralis in the Lostine River, Oregon : epizootiology, distribution and implications for resident and anadromous salmonids

Distribution and coinfection of microparasites and macroparasites in juvenile salmonids in three upper Willamette River tributaries

Ceratomyxa shasta-related concerns for reintroduced anadromous salmonids into the Upper Klamath Basin, CA-OR, USA

Re-examining Ceratomyxa shasta in the Pacific Northwest

Erythrocytic inclusion body syndrome : a viral disease of salmonid fish

Spatiotemporal Distribution of Ceratonova shasta and its Genotypes in the Deschutes River Basin

Chemical and Genetic Investigations of Toxic Freshwater Cyanobacterial Blooms for Improved Monitoring and Understanding of Lake Ecology

Preventing crown gall disease using oncogene silencing or VirE1-expressing transgenics

Silencing of Agrobacterium tumefaciens T-DNA oncogenes by cosuppression

Advances in Freshwater Cyanobacterial Genomics

Intestinal Lesions and Parasites Associated with Senescence and Prespawn Mortality in Chinook Salmon (Oncorhynchus tshawytscha)

Biophysical properties of the turnip yellow mosaic virus explored by coat protein mutagenesis

In vitro regulation and cultivation of salmonid lymphocytes

Phylogeny and intracellular survival of Renibacterium salmoninarum

Host-pathogen Interactions of Respiratory RNA Viruses and the Application of Recombinase Polymerase Amplification for Viral Diagnostics

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