Index Catalog // ScholarsArchive@OSU

Analysis of boscalid resistance of isolates of Botrytis cinerea

Creator:: Villanueva, Brenda
Abstract:: Succinate dehydrogenase (Sdh) inhibitor fungicides, such as boscalid, are effective for the management of gray mold caused by the fungal pathogen Botrytis cinerea. Unfortunately, resistance to boscalid was common among isolates of the pathogen from small fruits grown in Oregon. Boscalid-resistance is commonly associated with mutations in Sdh, especially in...
Resource Type:: Undergraduate Thesis

Biogas inhibition of fats, oils, and greases with varying ammonia levels

Creator:: Aranda, Ana A.
Abstract:: Biogas can be used to generate energy from a wide variety of sources. Wastewater treatment sludge is an effective source of waste to be used for generation of biogas to make energy which can be used to heat homes and run businesses. This would help decrease the use of fossil...
Resource Type:: Undergraduate Thesis

Needs Assessment of the Strawberry Industry

Creator:: Howe, Shianne M.
Abstract:: Oregon is the number three producer of strawberries in the nation despite the fact that Oregon strawberry acreage dropped from 2,600 acres in 2005 to 2,000 acres in 2014 (Beeles, 2015; NASS, 2019, Losh, 2017). With over three billion pounds of berries grown nationally each year, strawberries are an important...
Resource Type:: Undergraduate Thesis

Fungal endophytes as source to combat bacterial infections

Creator:: Green, Jaimie R
Abstract:: Endophytes, foliage inhabiting fungi, are an unexplored source of fungal biodiversity and a potential resource for the production of bioactive natural products. In this research, leaf tissues from the species Arbutus menziesii, Rhododendron macrophyllum and the genus, Ilex and Salix were collected for the isolation of endophytic fungi. Fungal extracts...
Resource Type:: Presentation and Undergraduate Thesis

Use of Platelet Rich Plasma for the Treatment of Subclinical Endometritis in Beef Heifers

Creator:: Puttman, Elizabeth A.
Abstract:: Postpartum uterine inflammation (endometritis) is not uncommon in beef cattle, resulting in infertility and culling. Prolonged calving may contribute to the increased incidence of endometritis in heifers. Commonly used methods to treat endometritis in beef cattle include intrauterine antibiotics and/or hormone injections, which can result in meat residues. Platelet rich...
Resource Type:: Presentation and Undergraduate Thesis

Bacterial seed endophytes of Douglas-fir (Pseudotsuga menziesii) and their potential to confer drought tolerance

Creator:: Hatwal, Shikhar
Abstract:: Bacterial endophytes have the potential to confer benefits to Douglas-fir ( Pseudotsuga menziesii ), for instance drought tolerance. Bacterial endophytes originating from seeds are especially important. This is because seed endophytes are more likely to be the first endophytes to get established within the young host plant. The goals of...
Resource Type:: Undergraduate Thesis

Phytochemical characterization of Fagonia indica and its effects on MCF-7 breast cancer cell line

Creator:: Kumbi, Yadano
Abstract:: Phytochemicals from the genus, Fagonia, have been attracting increasing attention due to their potential beneficial effects on human health, particularly, anti-cancer properties. Certain Fagonia species contain various types of phytochemicals such as saponins, alkaloids, cardiac glycosides, flavonoids, terpenoids, and tannins. In this study, we investigated the phytochemical composition of a...
Resource Type:: Undergraduate Thesis

Impact of lignin on efficiency of small-scale enzymatic hydrolysis of lignocellulosic biomass

Creator:: Potapchuk, Angelica
Abstract:: Energy production and consumption is a major environmental and economic concern in the world today. Biofuel produced from lignocellulosic biomass is being explored as an alternative energy source to petroleum. Lignocellulosic biomass is comprised of cellulose, hemicellulose, and lignin. To produce biofuels, lignocellulosic biomass must be broken down to expose...
Resource Type:: Presentation and Undergraduate Thesis

Vegetative effects of RNAi-suppression of the poplar homolog of LEAFY in the field

Creator:: Jacobson, Jeremy
Abstract:: Due to public and regulatory restrictions, genetic containment technology is critical for research and development of transgenic trees in forestry. A multi-year field trial demonstrated that the RNAi-LFY construct successfully induces sexual sterility in 6K10 poplar (Populus alba) without visible effects on vegetative development. However, its limited number of replicates...
Resource Type:: Undergraduate Thesis and Presentation

Functional consequences of microRNA regulation by polycyclic aromatic hydrocarbons in 3D human bronchial epithelial cells

Creator:: Mans, Michael-Andres D.
Abstract:: Polycyclic aromatic hydrocarbons (PAHs) are a class of contaminants ubiquitous in the environment and result from the incomplete combustion of fossil fuels. Many PAHs have been identified as procarcinogenic, and are metabolized to form DNA adducts; however, other mechanisms also may contribute to toxicity and help explain differences in toxicity...
Resource Type:: Undergraduate Thesis

Enhancing Protocols to Improve Consistency Across Nanotoxicology Studies

Creator:: Luker, Sabrina R.
Abstract:: In current nanotoxicology research, there is a lack of standardization in reporting of zebrafish exposure media and sonication practices. This lack of standardization in use and reporting methods has made reproducing nanoparticle (NP) toxicity results between labs a common issue. It is important to have a standardized way of reporting...
Resource Type:: Undergraduate Thesis

Toxicity and Mutagenicity of Polycyclic Aromatic Hydrocarbons in Contaminated Soils using Mammalian In Vitro Assay

Creator:: Luker, George W.
Abstract:: There exists a growing need to establish a better in vitro model for evaluating PAH toxicity and carcinogenicity and to improve assessments of risk to human health, especially to the complex mixtures that exist in the environment. Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental contaminants due to the incomplete combustion...
Resource Type:: Undergraduate Thesis

Partial purification of endo-1,4-β-D-glucanase I of Trichoderma reesei and use in small-scale enzymatic hydrolysis of cellulose

Creator:: Pautsch, Lindsay
Abstract:: In order to reduce the cost of lignocellulosic ethanol production, a model was previously developed to predict the amount of fermentable sugar released based on parameters concerning both biomass and enzymes. To validate this model, enzymatic hydrolysis must be carried out using individual purified cellulase enzymes. Endo-1,4-β-D-glucanase I (EG I),...
Resource Type:: Undergraduate Thesis

Biosynthetic Studies of the α-Amylase Inhibitor Trestatin in Streptomyces dimorphogenes

Creator:: Demessie, Ananiya A.
Abstract:: The prevalence of obesity and diabetes in the United States and globally has been rising in the last few decades and it continues to climb. One of the causes for this increase is the over consumption of sugars and/or carbohydrates. Among medications available to treat obesity and diabetes are the...
Resource Type:: Undergraduate Thesis and Presentation

Systematically evaluating the developmental toxicity of nanomaterials using the zebrafish model

Creator:: Edwards, Sabrina R.
Abstract:: As engineered nanomaterials (ENM) become more common in consumer products, it is crucial to rapidly assess toxicity of unique ENM. Previous studies rarely focused on standardizing nanotoxicity testing, leading to inconsistent and irreproducible results. This study characterized a variety of ENM of different size, shape, core type, and surface charge...
Resource Type:: Poster, Undergraduate Thesis, and Presentation

Urinary Lipid Biomarkers for Detecting Canine Transitional Cell Carcinoma Pilot Study

Creator:: Pope, George
Abstract:: Canine Transitional Cell Carcinoma (TCC) makes up 2% of all canine cancers and is the most common cancer of the bladder for dogs. Usually diagnosed in its later stages, TCC is difficult to treat, with low survival times. Current diagnosis involves invasive techniques, and mainstream screening tests are often ineffective....
Resource Type:: Undergraduate Thesis and Presentation

Effect of Flaxseed Supplementation with and without Rumen-Bypass Processing on Performance and Milk and Serum Fatty Acid Composition of Dairy Cows

Creator:: Wilson, Randi L.
Abstract:: Feeding cows flaxseed rich in polyunsaturated fatty acids has been shown to decrease the proportion of saturated fatty acids and increase the proportion of n-3 polyunsaturated fatty acids (PUFAs) in milk. Consuming products enriched in n-3 PUFAs have beneficial effects to human health; thus, feeding cows flaxseed could potentially increase...
Resource Type:: Undergraduate Thesis and Presentation

Honey Bees (Apis mellifera) and Agricultural Chemicals: Global to Micro Perspectives

Creator:: Bernert, Ann
Abstract:: Fungicide sensitivity of honey bee associated fungi Abstract - Honey bees are exposed to a wide range of pesticides while pollinating agricultural crops. These pesticides residues are found in beeswax, nectar and pollen in the hive. Some of the pesticides found are fungicides which are not generally considered harmful to...
Resource Type:: Undergraduate Thesis

Genetic diversity of benthic marine cyanophage as revealed by sequence analysis of various phage marker genes

Creator:: Vallota-Eastman, Alec
Abstract:: Cyanophage are viruses that infect cyanobacteria, photosynthetic microorganisms which are known to produce several anticancer and antibacterial chemical compounds. Cyanophage are significant members of microbial communities in marine and freshwater environments. There has been significant difficulty inventorying marine and freshwater cyanophage, however, due to the difficulty in cultivating their hosts....
Resource Type:: Presentation and Undergraduate Thesis

A Panel of Histone H3 Mutations to Investigate Centromere Maintenance and Gene Silencing

Creator:: Esposito, Madison L.
Abstract:: Modifications of histone tail amino acid residues are necessary for many reactions involving chromatin. These processes can produce transcriptionally active, euchromatic, or inactive, heterochromatic, segments of DNA. The formation and maintenance of facultative heterochromatin is critical for the proper growth and development of many eukaryotes. Euchromatin can be changed into...
Resource Type:: Undergraduate Thesis and Presentation

ScholarsArchive@OSU

Analysis of boscalid resistance of isolates of Botrytis cinerea

Biogas inhibition of fats, oils, and greases with varying ammonia levels

Needs Assessment of the Strawberry Industry

Fungal endophytes as source to combat bacterial infections

Use of Platelet Rich Plasma for the Treatment of Subclinical Endometritis in Beef Heifers

Bacterial seed endophytes of Douglas-fir (Pseudotsuga menziesii) and their potential to confer drought tolerance

Phytochemical characterization of Fagonia indica and its effects on MCF-7 breast cancer cell line

Impact of lignin on efficiency of small-scale enzymatic hydrolysis of lignocellulosic biomass

Vegetative effects of RNAi-suppression of the poplar homolog of LEAFY in the field

Functional consequences of microRNA regulation by polycyclic aromatic hydrocarbons in 3D human bronchial epithelial cells

Enhancing Protocols to Improve Consistency Across Nanotoxicology Studies

Toxicity and Mutagenicity of Polycyclic Aromatic Hydrocarbons in Contaminated Soils using Mammalian In Vitro Assay

Partial purification of endo-1,4-β-D-glucanase I of Trichoderma reesei and use in small-scale enzymatic hydrolysis of cellulose

Biosynthetic Studies of the α-Amylase Inhibitor Trestatin in Streptomyces dimorphogenes

Systematically evaluating the developmental toxicity of nanomaterials using the zebrafish model

Urinary Lipid Biomarkers for Detecting Canine Transitional Cell Carcinoma Pilot Study

Effect of Flaxseed Supplementation with and without Rumen-Bypass Processing on Performance and Milk and Serum Fatty Acid Composition of Dairy Cows

Honey Bees (Apis mellifera) and Agricultural Chemicals: Global to Micro Perspectives

Genetic diversity of benthic marine cyanophage as revealed by sequence analysis of various phage marker genes

A Panel of Histone H3 Mutations to Investigate Centromere Maintenance and Gene Silencing

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