Index Catalog // ScholarsArchive@OSU

Comparative epidemiology of Phytophthora diseases of Rhododendron

Creator:: Taylor, Clare Rebecca
Abstract:: Rhododendron species are host to many Phytophthora species and are an important crop in the nursery industry. The foliar epidemiology of twelve Phytophthora diseases on Rhododendron was studied in field and growth chamber experiments on two Rhododendron cultivars. The relative aggressiveness of Phytophthora spp. was assessed using disease incidence, severity,...
Resource Type:: Masters Thesis
Full Text:: P., Krug J., Lane C.E., Lewis L.A., Lodge J., Lynn D.H., Mann D.G., McCourt R.M., Mendoza L

Science Takes Flight: Detection of Black Leg on Turnip Gray Mold on Hemp

Creator:: Bates, Taylor A.
Abstract:: Disease detection through traditional techniques such as scouting fields on foot, molecular assays, or morphological identification of plant pathogens is time consuming and costly. Disease diagnosis in the field can be extremely subjective, and largely depends on the experience and knowledge of pathogen identification and disease quantification. This thesis provides...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Taylor A. Bates for

Sequence determination and regional epidemiology of raspberry bushy dwarf virus (RBDV)

Creator:: Taylor, Susannah M.
Abstract:: Raspberry bushy dwarf virus (RBDV) is the sole member of the idaeovirus genus of plant viruses. It is a pollen-borne virus that economically impacts both red and black raspberries worldwide. Three strains of the bipartite RBDV have been reported. The common strain found in North America, South America, Australia, New...
Resource Type:: Masters Thesis
Full Text:: bushy dwarf virus (RBDV) AN ABSTRACT OF THE THESIS OF Susannah Taylor for the degree of Master of

Genomics-enabled exploration of insect toxicity in the Pseudomonas fluorescens group

Creator:: Rangel, Lorena I.
Abstract:: Pseudomonas is a diverse genus of Gamma proteobacteria that are ubiquitous in the natural environment, including soil, water, plant surfaces, and animals. The Pseudomonas fluorescens group is a diverse collection of seven subgroups and more than 50 named species. This group is known for their production of a variety of...
Resource Type:: Masters Thesis
Full Text:: sequenced strains in the P. fluorescens group are lethal to insects, using larvae of the tobacco hornworm

Addressing the relationship between Pseudoperonospora cubensis and P. humuli using phylogenetic analyses and host specificity assays

Creator:: Mitchell, Melanie N.
Abstract:: The two most economically important plant pathogens in the Pseudoperonospora (Peronosporaceae) genus are P. cubensis, causal agent of cucurbit downy mildew, and P. humuli, causal agent of hop downy mildew. These organisms have been shown to be very closely related phylogenetically and morphologically. In 2005, researchers in Korea proposed that...
Resource Type:: Masters Thesis
Full Text:: . Title: Addressing the Relationship Between Pseudoperonospora cubensis and P. humuli using Phylogenetic

Phytophthora obscura sp nov., a new species of the novel Phytophthora subclade 8d

Creator:: Gruenwald, N. J., Werres, S., Goss, E. M., Taylor, C. R., and Fieland, V. J.
Abstract:: A new Phytophthora species was detected (i) in the USA, infecting foliage of Kalmia latifolia, (ii) in substrate underneath Pieris, and (iii) in Germany in soil samples underneath Aesculus hippocastanum showing disease symptoms. The new species Phytophthora obscura sp. nov. is formally named based on phylogenetic analysis, host range, Kochs...
Resource Type:: Article
Full Text:: 0 0 0 4 4 P S Y - 0 9 - 0 0 1 P S Y - 0 6 - 0 9 9 P A U - 0 9 - 0 0 2 P A U - 0 9 - 0 0 1 J P - 0 9

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:: lichen and vegetation data. Matthew J. Macander did the Landsat image processing and advised on further

Analysis and prediction of patterns in lichen communities over the western Oregon landscape

Creator:: Peterson, Eric B.
Abstract:: The diverse lichen flora of the Pacific Northwest is being impacted by population growth and by forest management practices. Accumulating information about our lichen flora will improve our conservation strategies. This dissertation first collects information to improve our understanding of how lichen communities vary among forests of differing structure, and...
Resource Type:: Dissertation
Full Text:: (Vainio) Vainio CLATRA P 10 8 T Esslingeriana idahoensis (Essi.) Hale & M. ESSIDA P 2 10 E J. Lai

Effect of resident epiphytic fungi development of brown rot blossom blight of stone fruits

Creator:: Wittig, Hans P. P.
Abstract:: Antagonistic effects of Epicoccum purpurascens, Aureobasidium pullulans, Trichoderma spp., and Botrytis cinerea on establishment of Monilinia fructicola infections in cherry and peach blossoms were assessed in field and mist chamber studies. Conidia of each fungus were applied to blossoms that were subsequently inoculated with conidia of M fructicola. Mist chamber...
Resource Type:: Masters Thesis
Full Text:: forced cherry blossoms demonstrated that recovery of M. fructicola was significantly reduced (P=.05

Molecular characterization of a protein toxin involved in the Pyrenophora tritici-repentis/wheat interaction

Creator:: Tuori, Robert P.
Resource Type:: Dissertation
Full Text:: from Cultures of Pyrenophora tritici-repentis. Robert P. Tuori, Thomas J. Wolpert and Lynda M

ScholarsArchive@OSU

Comparative epidemiology of Phytophthora diseases of Rhododendron

Science Takes Flight: Detection of Black Leg on Turnip Gray Mold on Hemp

Sequence determination and regional epidemiology of raspberry bushy dwarf virus (RBDV)

Genomics-enabled exploration of insect toxicity in the Pseudomonas fluorescens group

Addressing the relationship between Pseudoperonospora cubensis and P. humuli using phylogenetic analyses and host specificity assays

Phytophthora obscura sp nov., a new species of the novel Phytophthora subclade 8d

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

Analysis and prediction of patterns in lichen communities over the western Oregon landscape

Effect of resident epiphytic fungi development of brown rot blossom blight of stone fruits

Molecular characterization of a protein toxin involved in the Pyrenophora tritici-repentis/wheat interaction

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