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  • Characterizing the symbiotic interactions between Rhodococcus and plants

    Creator:
    Stevens, Danielle M.
    Abstract:
    Bacteria are critical to the health of eukaryotes and the ecosystems in which they persist. Some symbiotic interactions are mutualistic in which both microbe and host benefit from the partnership. Other interactions are parasitic, and the microbe typically benefits at a cost to the host. Rhodococcus is a genus of...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    strains and growth conditions …………………………………… 37 Cloning DNA constructs…………………...…………………………………. 37

  • 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
    Full Text:
    in a shaker table at 37° C. The light conditions were not monitored as the shaker table was placed

  • Testing the effectiveness of the λ insulator in hybrid poplar

    Creator:
    Feng, Mu
    Abstract:
    Genetic engineering techniques allow scientists to create plants with desired traits. However, there is unwanted variability in transgene expression due to enhancer-promoter interactions and the influence from genetic elements near the insertion site of the transgene, which integrates into a random location in the genome. In an attempt to reduce...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    (GUS) reporter gene on a plant transformation vector. Previous work with the non-insulated construct

  • How sweet is the land? Modeling caloric landscapes for tropical hummingbirds

    Creator:
    Birkett, Christina Nozomi and Birkett, Nozomi Fukui
    Abstract:
    Pollination is a critical ecosystem function for sustaining biodiversity. However, pollinators and the services they provide are threatened by landscape-altering anthropogenic activities across the globe. Habitat loss and fragmentation, introduction of invasive species, chemical use, and urbanization have been shown to impact pollination. Pollinator foraging behavior is thought to be...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    build caloric landscapes using tropical hummingbird-plant system in Costa Rica. We found that our

  • Is Advection Important? An Examination of the Advective Dynamics of Sensible Heat and Their Influence onSubcanopy Carbon Fluxes in Heterogeneous Terrain

    Creator:
    Carrigg, Sean Stephen
    Abstract:
    Abstract Understanding small-scale bio-atmospheric interactions is becoming increasingly important as the global climate continues to change at breakneck speed. A theoretical model of the sensible heat budget of a forest is developed combining conservation equations and concepts from fluid dynamics. Budget components are computationally evaluated using micrometeorological data taken during...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    a mature Douglas fir (Pseudotsuga men-12 ziesii) forest site in the Coast Range of western Oregon

  • 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
    Full Text:
    Methods 83.1 Plant Material 113.2 Tissue Culture Media and Conditions 173.3 Plasmid Design and

  • 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
    Full Text:
    _______________ Ken Johnson, Dept. of Botany and Plant Pathology Date

  • 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
    Full Text:
    ) is a plant defense mechanism that can be manipulated to suppress endogenous genes of interest

  • “SHOO FLY”: Reduce Pesticide Dependence with Knowledgeabout Drosophila suzukii

    Creator:
    Marek, Charlene Marie
    Abstract:
    Drosophila suzukii was a known pest of berries, grapes, and stone fruits in East Asia for almost a century. Yet in recent years it has successfully migrated throughout the United States, Mexico, and Europe due to globalized fruit trade. The invasive success of D. suzukii is causing unrest for fruit...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    . .......................................................................................................................... 37   31. Monthly percentages of females with mature ovaries

  • Enzyme-Mediated Conversion of Glucolimnanthin to Bioherbicidal Breakdown Products

    Creator:
    Bratton, Daniel
    Abstract:
    The oilseed crop Limnanthes alba (white meadowfoam) is grown in Oregon. Methods were developed for the production of a liquid-based bioherbicide from meadowfoam seed meal (MSM). It was determined that glucosinolate-containing extracts of MSM can be combined with active-enzyme-containing liquid extracts of meadowfoam seed to form a fermented product rich...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    diluted to a 13 range of .01 to 1 mg analyte per mL sample, an effective quantitation range for