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  • Exploring phylogeny of Rhodococcus fascians isolates using 16S ribosomal DNA sequence analysis

    Creator:
    Sandberg, Eva Song
    Abstract:
    Rhodococcus fascians is a Gram-positive, pleiomorphic actinomycete that causes leafy gall formation in a wide range of plant hosts. This particular phytopathogen has been a focus of research at the Oregon State University Plant Clinic, a diagnostic laboratory. Phylogeny of R. fascians isolates obtained from Plant Clinic submissions was determined...
    Resource Type:
    Honors College Thesis
    Full Text:
    environmental stress by colonizing more protected regions of the plant such as junctions of epidermal cell walls

  • Entrapment of Micro-Algae in Modified Alginate Beads for Oxygen and Nutrient Source

    Creator:
    Hughson, Jason D.
    Abstract:
    Presented here is an investigation and comparison of two entrapment methods of algae. Conventional calcium alginate bead entrapment is compared to a recently described modified bead entrapment method, utilizing poly(ethylene glycol) and calcium alginate, which results in void or capillary formation within the beads. It is shown that algal growth...
    Resource Type:
    Honors College Thesis
    Full Text:
    . Limiting the amount of cell escape from entrapped beads is an important aspect of this investigation. It

  • 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
    Full Text:
    plants and an absence of this plant cell wall in non-host species. This observation emphasizes the

  • 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:
    viable plant from a single transformed cell. Wheat and other monocots have proved more difficult than