Index Catalog // ScholarsArchive@OSU

Studies on a transgenic approach to decrease gliadin content in wheat

Creator:: Bell, Shannon M.
Abstract:: Celiac disease, an autoimmune response triggered by the consumption of seed storage proteins of cereals, affects an estimated 1% of the human population. In the case of wheat (Triticum aestivum L.), one of the world’s most consumed cereals, alcohol-soluble proteins, the gliadins, have been identified as the allergy-eliciting agents. Previous...
Resource Type:: Undergraduate Thesis

Production and invasion of butterfly bush (Buddleja davidii) in Oregon

Creator:: Ream, Julie
Abstract:: Butterfly bush (Buddleja davidii), an ornamental native to China, is an invasive species in Oregon and many other areas. In Oregon, butterfly bush invades disturbed areas, particularly riparian areas. The Oregon nursery industry has the highest farm-gate value of all agricultural commodities and butterfly bush is a significant plant to...
Resource Type:: Honors College Thesis

In search of ecological advantages : Mycorrhizal facilitation of big huckleberry Vaccinium membranaceum (Doug.)

Creator:: Stocking, Peter
Abstract:: Temperate evergreen forests of the Pacific Northwest support big huckleberries (Vaccinium membranaceum) despite their nutrient impoverished soils. Acquisition of nitrogen and phosphorous are the major nutrients limiting V. membranaceum. The plant’s access to these resources is linked to their mycorrhizal symbiosis. To learn more about the symbionts of eriaceous plants...
Resource Type:: Undergraduate Thesis

Vernalization gene architecture as a predictor of growth habit in barley

Creator:: Heckart, Douglas
Abstract:: Winter hardiness in barley (Hordeum vulgare) is a trait targeted by breeding programs in order to expand the potential area of adaptation of fall-sown cereals. Vernalization requirement is an important factor in winter hardiness. A vernalization requirement is an extended period of low temperature required for transition from the vegetative...
Resource Type:: Undergraduate Thesis and Presentation

Determination of flavin-containing monooxygenase mRNA levels in mouse lung and liver

Creator:: Lo, Pachida C.
Abstract:: We are developing a flavin-containing (Fmo) knock-out mouse for Fmo2 that will be utilized to elucidate the role of active human FMO isoform 2 (FMO2.1) in xenobiotic metabolism and toxicity. Since FMO2 is primarily expressed in lung this will provide information on how 27% of African-Americans and 5% of Hispanics...
Resource Type:: Honors College Thesis

Repression of DNA Mismatch Repair (MMR) in Arabidopsis thaliana through Dominant-Negative MMR Proteins

Creator:: Mohamed, Aly
Abstract:: The highly conserved multi-protein mismatch repair (MMR) system is known for its ability to correct post replication errors in genomic DNA. A hallmark of MMR deficiency in all organisms is microsatellite instability. The initiating proteins in the eukaryotic MMR system are hetrodimers formed with an integral MSH2 subunit and one...
Resource Type:: Honors College Thesis

Characterization of a Sporulation-Specific Kinase in Clostridium perfringens

Creator:: Danielson, Bryan
Abstract:: Clostridium perfringens type A isolates produce the spore-specific enterotoxin, CPE, upon sporulation in the gastrointestinal tract of humans and animals. Spo0A is a response regulator representing the major transcription factor for sporulation initiation in C. perfringens. In Bacillus subtilis, a multicomponent phosphorelay involving five histidine kinases (KinA-KinE), the intermediate response...
Resource Type:: Undergraduate Thesis and Presentation

Method development in in vitro immune response

Creator:: Huber, Jacob
Abstract:: The AhR is a ligand-activated transcription factor that mediates the potent immunosuppressive effects of TCDD. AhR-dependent changes in gene expression appear to alter the differentiation of CD4+ T cells to induce a population of CD4+CD25+ T regulatory cells (Tregs) that suppress the immune response. Ascertaining if and how the AhR...
Resource Type:: Undergraduate Thesis and Presentation

Expression of prolactin in feline mammary adenomas and adenocarcinomas

Creator:: Trummel, Danielle K.
Abstract:: Mammary tumors are the third most common tumor in cats after cutaneous neoplasia and lymphosarcoma. More than 80% of feline mammary tumors are adenocarcinomas, which are similar to human mammary adenocarcinomas in their biologic behavior and histologic characteristics. Despite treatment with radical mastectomy, feline mammary adenocarcinoma is associated with a...
Resource Type:: Undergraduate Thesis and Presentation

“SeW: A Search for Selenosulfide Bonding” and “Severity of Damage Inflicted on Intercellular Disulfide Bonds as a Result of UV Radiation”

Creator:: Dutcher, Kendall
Abstract:: Part 1: White muscle disease (WMD), a degenerative muscle disease brought on by a deficiency of the essential trace nutrient selenium, is thought to be mediated by the protein Selenoprotein W (SeW). In its relationship with WMD, SeW, like many selenoproteins, binds to glutathione, serving some purpose in redox mechanisms...
Resource Type:: Undergraduate Thesis and Research Paper

Barley genetics as a model for international collaborative research

Creator:: Osborn, Lauren A.
Abstract:: Collaboration is crucial when advancing in scientific research. One person cannot study all aspects of a system. That is why it is important for the scientific community to communicate with each other and stay updated on research being conducted in other labs around the world. In my research, I was...
Resource Type:: Presentation and Honors College Thesis

Degradation of Extracellular Matrix Proteins by Bovine Embryonic Urokinase-Type Plasminogen Activator

Creator:: Hansen, Lance
Abstract:: The bovine blastocyst is composed of a one-celled layer of trophectoderm surrounding a fluid filled sac called the blastocoel and a ball of cells called the inner cell mass (ICM). On Day 8 (Day 0=fertilization) in bovine embryos, endodermal cells leave the ICM, migrate over the extracellular matrix (ECM) on...
Resource Type:: Undergraduate Thesis and Presentation

Developing the Zebrafish (Danio rerio) As a Model to Evaluate the Toxicity of Chlorinated and Non-Chlorinated Solvents

Creator:: Wenning, Matthew
Abstract:: Chlorinated and non-chlorinated solvents are used in a variety of industrial processes and as a consequence, they have become environmental contaminants as well. Because of this, they lead to both occupational and environmental exposures. Exposure to these compounds can potentially result in various forms of neurological damage with a wide...
Resource Type:: Undergraduate Thesis and Presentation

Identifying microRNAs by automated phylogenetic and structural analysis

Creator:: Smith, Daniel P.
Abstract:: Motivation: It can take considerable amounts of time and effort to use existing computational tools to analyze a small RNA sequence for the purpose of determining if it is characteristic of microRNA. It is similarly tedious to search for homologs to known microRNA sequences in the rapidly growing collection of...
Resource Type:: Undergraduate Thesis

Use of sheep in the control of an invasive bunchgrass

Creator:: Scholz, Ryan
Abstract:: Studies were conducted to assess influencing the effectiveness of sheep for grazing control of false brome (Brachypodium sylvaticum) an invasive grass species. Orphan lambs were exposed to false brome via grass extract in their milk and naturally reared lambs were exposed by grazing dense stands of false brome with their...
Resource Type:: Undergraduate Thesis and Presentation

In vitro mechanisms of chlorophyllin antimutagenesis against dibenzo[[alpha],l]pyrene

Creator:: Barth, Marita C.
Abstract:: Polycyclic aromatic hydrocarbons (PAHs) are a class of usually planar compounds consisting of fused aromatic rings that are formed by the incomplete combustion of organic materials. PAHs are ubiquitous in the environment, coming from a number of sources, such as cigarette smoke, the burning of wood for residential heating, and...
Resource Type:: Undergraduate Thesis

Effects of Sarcocystis neurona infection on cell-mediated immune responses in horses

Creator:: Barth, Laura A.
Abstract:: Sarcocystis neurona is the 1responsible for the disease Equine Protozoal Myeloencephalitis (EPM). Exposure rates to S. neurona across the United States is about 50%, yet only about 2% of exposed horses develop EPM. The cell-mediated immune (CMI) response is hypothesized to be important for protective immunity against this disease. The...
Resource Type:: Undergraduate Thesis

Biological control of insects using entomopathogenic nematodes

Creator:: Bezdek, Tanya M.
Abstract:: Biological control is the action of predators, parasitoids, or pathogens to maintain a pest organism's population at lower numbers than would occur in the absence of the agent. Entomopathogenic nematodes can be used as biological control agents for insect pests. These nematodes infect insects and release a toxic bacterium that...
Resource Type:: Undergraduate Thesis

Genetic analysis of interactions between the plant hormones auxin and ethylene

Creator:: Barckley, Kristi K.
Abstract:: Auxin and ethylene regulate many important aspects of plant growth and development and are essential to the plants survival. They help regulate such diverse processes as cell elongation, growth of adventitious roots, fruit growth, germination, and a variety of other processes. Few studies have examined how the hormones auxin and...
Resource Type:: Undergraduate Thesis

Lexicon development of appearance and texture descriptors for melted cheddar cheese using microwave and oven heating

Creator:: Asato, Karisa
Abstract:: A lexicon to define the sensory properties of melted Cheddar cheese was created using a trained descriptive panel. The lexicon characterized appearance (surface rupture, meltedness, oiliness, and edge browning) and texture (stringiness, stretchiness, springiness, firmness, toothpull, smoothness, cohesiveness, denseness, and chewiness). Three brands of commercially available shredded Cheddar cheese were...
Resource Type:: Undergraduate Thesis

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