Index Catalog // ScholarsArchive@OSU

Grape Powdery Mildew Management: The Interaction Between Inflorescence Stage and Fungicide Chemistry

Creator:: Warneke, Brent W.
Abstract:: Grape powdery mildew (GPM, causal agent Erysiphe necator) is the most economically important disease of grapevine in the Western U.S. Low levels of GPM infection on clusters (1-5%) can negatively affect wine sensory quality, so intensive fungicide programs are common. This may lead to problems like excessive fungicide use and...
Resource Type:: Masters Thesis
Full Text:: Chemistry. Abstract approved: ______________________________________________________ Walt F

Seasonality as a driving factor of decomposition pathways in both meadows and forests : an exploration across a gradient of climate in Oregon

Creator:: Colby, Samantha E.
Abstract:: Soil food webs process the majority of terrestrial carbon, and influence overall ecosystem function. A primary distinction among soil food webs is based on fungal versus bacterial pathways of decomposition; these lead to fundamentally different soil function, and are expected to differ in dominance between meadows and forests. This assumption...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: Andrew R. Moldenke Soil food webs process the majority of terrestrial carbon, and

Lichen communities and caribou habitat in Denali National Park and Preserve, Alaska, USA

Creator:: Nelson, Peter R.
Abstract:: Lichens play many important roles in subarctic terrestrial ecosystems by fixing nitrogen, colonizing rock and gravel, stabilizing otherwise bare soil, adding significantly to vegetation biodiversity and serving as the primary food for caribou in the winter. In these chapters, I analyzed lichen community and ecological trait structure along environmental gradients,...
Resource Type:: Dissertation
Full Text:: vegetation biodiversity and serving as the primary food for caribou in the winter. In these chapters, I

Maximizing the Nutritional Potential of Potato: the Case of Folate

Creator:: Goyer, Aymeric
Abstract:: Micronutrient malnutrition, also known as the hidden hunger, affects over two billion people worldwide. Potato is the third most consumed food crop in the world, and is therefore a fundamental element of food security for millions of people. Increasing the amount of micronutrients in potatoes could help alleviate worldwide micronutrient...
Resource Type:: Article
Full Text:: is the third most consumed food crop in the world, and is therefore a fundamental element of food

The culture and biochemical analysis of some estuarine phytoplankton species

Creator:: DeMort, Carole Lyle
Abstract:: The biochemical composition of ten species of estuarine phytoplankton was determined. Studies were made of their growth in various culture media and of their relative value as food for oyster larvae. Nine of the species were isolated from Yaquina Bay, Oregon. An attempt was made to select species which commonly...
Resource Type:: Dissertation
Full Text:: their growth in various culture media and of their relative value as food for oyster larvae. Nine of

Thiamin biofortification of crops

Creator:: Goyer, Aymeric
Abstract:: Thiamin is essential for human health. While plants are the ultimate source of thiamin in most human diets, staple foods like white rice have low thiamin content. Therefore, populations whose diets are mainly based on low-thiamin staple crops suffer from thiamin deficiency. Biofortification of rice grain by engineering the thiamin...
Resource Type:: Article
Full Text:: synthesize thiamin de novo, humans cannot and must obtain it from food. Although plant foods are a major

Exploring vitamin B9 diversity in wild and primitive potatoes for modern crop improvement

Creator:: Robinson, Bruce R., Sathuvalli, Vidyasagar, Bamberg, John, and Goyer, Aymeric
Abstract:: Malnutrition is one of the world’s largest health concerns. Folate (a.k.a. vitamin B9) is essential in the human diet and without adequate folate intake several serious health concerns such as congenital birth defects and an increased risk of stroke and heart disease can occur. Most people’s folate intake remains sub-optimal...
Resource Type:: Article
Full Text:: intake remains sub-optimal, even in countries that have a folic acid food fortification program in place

Characterization of fungal and bacterial communities associated with mat-forming ectomycorrhizal fungi from old-growth stands in the H.J. Andrews Experimental Forest

Creator:: Hesse, Cedar N.
Abstract:: Mat-forming ectomycorrhizal (EcM) fungi represent a prevalent constituent of many temperate forest ecosystems and create dramatic changes in soil structure and chemistry. EcM mat soil have been shown to have increased microbial respiration rates and have been hypothesized to harbor unique assemblages of fungi and bacteria. The objectives of this...
Resource Type:: Dissertation
Full Text:: chemistry. EcM mat soil have been shown to have increased microbial respiration rates and have been

Annual cycles of ecological disturbance and recovery underlying the subarctic Atlantic spring plankton bloom

Creator:: Behrenfeld, Michael J., Doney, Scott C., Lima, Ivan, Boss, Emmanuel S., and Siegel, David A.
Abstract:: Satellite measurements allow global assessments of phytoplankton concentrations and, from observed temporal changes in biomass, direct access to net biomass accumulation rates (r). For the subarctic Atlantic basin, analysis of annual cycles in r reveals that initiation of the annual blooming phase does not occur in spring after stratification surpasses...
Resource Type:: Article
Full Text:: phytoplankton-specific division and loss rates during spring maintain the subtle disruption in food web

Enhancement of thiamin in plants by metabolic engineering

Creator:: Dong, Wei, Stockwell, Virginia O., and Goyer, Aymeric
Abstract:: Thiamin is an essential nutrient in the human diet. Severe thiamin deficiency leads to beriberi, a lethal disease which is common in developing countries. Thiamin biofortification of staple food crops is a possible strategy to alleviate thiamin deficiency-related diseases. In plants, thiamin plays a role in the response to abiotic...
Resource Type:: Article
Full Text:: developing countries. Thiamin biofortification of staple food crops is a possible strategy to alleviate

ScholarsArchive@OSU

Grape Powdery Mildew Management: The Interaction Between Inflorescence Stage and Fungicide Chemistry

Seasonality as a driving factor of decomposition pathways in both meadows and forests : an exploration across a gradient of climate in Oregon

Lichen communities and caribou habitat in Denali National Park and Preserve, Alaska, USA

Maximizing the Nutritional Potential of Potato: the Case of Folate

The culture and biochemical analysis of some estuarine phytoplankton species

Thiamin biofortification of crops

Exploring vitamin B9 diversity in wild and primitive potatoes for modern crop improvement

Characterization of fungal and bacterial communities associated with mat-forming ectomycorrhizal fungi from old-growth stands in the H.J. Andrews Experimental Forest

Annual cycles of ecological disturbance and recovery underlying the subarctic Atlantic spring plankton bloom

Enhancement of thiamin in plants by metabolic engineering

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