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Candidate Genes Associated with Blister Rust Resistance in Whitebark Pine (Pinus albicaulis) Revealed through de novo Transcriptome Assembly and Differential Gene Expression Analysis

Creator:: Bair, Zolton J.
Abstract:: Whitebark pine (Pinus albicaulis) is an iconic North American high-elevation tree species currently threatened by climate change, mountain pine beetle, and white pine blister rust (WPBR), a lethal disease caused by the non-native fungal pathogen Cronartium ribicola. In collaboration with the USDA Forest Service Dorena Genetic Resource Center, germplasm was...
Resource Type:: Dissertation
Full Text:: -elevation tree species currently threatened by climate change, mountain pine beetle, and white pine

Improving Best Management Practices for Potato Production in the Columbia Basin : An Evaluation of Essential Oils for Control of Verticillium Wilt and the Fate of Chloride in the System

Creator:: Light, Sarah Elizabeth
Abstract:: Although the potato (Solanum tuberosum L.) is a global crop, few growing regions rival the high yields of the Columbia Basin of Eastern Oregon and Washington. Two research projects were conducted in Hermiston, OR to contribute to best management practices for the region. The first project evaluated the efficacy of...
Resource Type:: Masters Thesis
Full Text:: Control of Verticillium Wilt and the Fate of Chloride in the System. Abstract approved

Mulching to Manage Mummy Berry of Blueberry

Creator:: Florence, Jade
Abstract:: Monilinia vaccinii-corymbosi pseudosclerotia overwinter on the soil surface and produce apothecia in early spring, providing primary inoculum for Mummy Berry Disease of blueberry. Burial under 2.5 cm of soil or the absence of light have previously been identified as critical factors preventing the development of apothecia. Mulches were applied to...
Resource Type:: Dissertation
Full Text:: ............................................................................................................... ETIOLOGY AND MANAGEMENT OF MUMMY BERRY DISEASE ................................................ 8 LIGHT

Physical factors affecting longevity and germination of seed of Western dwarfmistletoe (Arceuthobium campylopodum Engelm. f. campylopodum)

Creator:: Beckman, Kent Mardsen
Abstract:: Longevity and germination of seed of western dwarfmistletoe (Arceuthobium campylopodum Engelm. f. campylopodum) of ponderosa pine (Pinus ponderosa Laws.) was investigated to determine: 1) the influence of humidity and temperature on seed viability and deterioration during storage; 2) the physiology of seed dormancy; 3) the composition of seed reserve food...
Resource Type:: Dissertation
Full Text:: pine (Il3"" ponderosa Laws. ) was investigated to determine: I) the influence of humidity and

Factors influencing the production and survival of inoculum of Elytroderma deformans

Creator:: Laird, Peter Paul
Abstract:: This study concerns factors affecting production and survival of ascospores of Elytroderma deformans (Weir) Darker, a needle cast of ponderosa pine (Pinus ponderosa Laws.). The results show that summer cooling and a reduction in host vigor delays and diminishes the number of fertile hysterothecia produced. Evidence is offered for classification...
Resource Type:: Masters Thesis
Full Text:: pine (Pinus ponderosa Laws), incited by Elytroderma deformans (Weir) Darker, is an endemic disease of

Anatomical studies of Pinus ponderosa Laws : infested by Elytroderma deformans (Weir) Darker

Creator:: Wirtz, Felicia Pietrykowski
Abstract:: Pine needle blight of Pinus ponderosa Laws. caused by Elytroderma deformans (Weir) Darker is recognized by changes in the needles, in the bark and in the development of the branches. Anatomical studies of the host-parasite relation have been made previously on young pine tissue up to four years of age...
Resource Type:: Dissertation
Full Text:: disease caused by this fungus is commonly known as pine needle blight. Seven species of two- and three

Epidemiological insights into Armillaria mellea root rot in a managed Ponderosa pine forest

Creator:: Shaw, Charles G. (Charles Gardner) 1948-
Abstract:: Root rot of ponderosa pine caused by Armillaria mellea was studied in a pine forest that had been under management for 30 years in Klickitat County, Washington. Information sources included disease survey, detailed observation and description of specific disease situations, and examination of roots in situ and removed. Roughly circular...
Resource Type:: Dissertation
Full Text:: trees on A. mellea- infected and noninfected plots. Ponderosa pine stocking by size class on infected

Histological comparisons of needle tissues of four species of white pine infected by Cronartium ribicola

Creator:: Sweeney, Katarina
Abstract:: Hypersensitive response-like (HR-like) needle reactions to infection by the white pine blister rust pathogen, Cronartium ribicola, have been reported for several species of five needle pines native to western North America. The best-studied examples are in Pinus monticola and P. lambertiana. In these species a "needle spot" phenotype has been...
Resource Type:: Masters Thesis
Full Text:: white pine blister rust pathosystem……………………………. 1 1.2 White pine blister rust symptoms and damage

Biological and molecular characterization of wild type parental and nonpathogenic mutant strains of Pseudomonas syringae pathovars phaseolicola and syringae

Creator:: Bertoni, Gregory
Abstract:: The in planta growth of three wild type strains of phytopathogenic bacteria and three nonpathogenic mutant strains was studied to determine if mutations eliminating the ability of the mutant strains to cause disease had affected their growth in leaf tissue. The mutant strains were obtained by Tn5 mutagenesis of Pseudomonas...
Resource Type:: Masters Thesis
Full Text:: uracil and had caused an inability to produce typical necrotic and chlorotic disease symptoms in bean

Irrigation water and plant density effects on the epidemiology of aerial stem rot of potatoes

Creator:: Cappaert, Marlys R.
Abstract:: Field plots of cv. Russet Burbank potatoes from a single seedlot were established at four sites over two seasons (1985-86) in two locations in Oregon to determine the role of water-borne inoculum of Erwinia carotovora in plant infection. One site at each location was irrigated from a surface-water source and...
Resource Type:: Masters Thesis
Full Text:: by onset of disease symptoms, final proportion of disease and area under the disease progress curve

ScholarsArchive@OSU

Candidate Genes Associated with Blister Rust Resistance in Whitebark Pine (Pinus albicaulis) Revealed through de novo Transcriptome Assembly and Differential Gene Expression Analysis

Improving Best Management Practices for Potato Production in the Columbia Basin : An Evaluation of Essential Oils for Control of Verticillium Wilt and the Fate of Chloride in the System

Mulching to Manage Mummy Berry of Blueberry

Physical factors affecting longevity and germination of seed of Western dwarfmistletoe (Arceuthobium campylopodum Engelm. f. campylopodum)

Factors influencing the production and survival of inoculum of Elytroderma deformans

Anatomical studies of Pinus ponderosa Laws : infested by Elytroderma deformans (Weir) Darker

Epidemiological insights into Armillaria mellea root rot in a managed Ponderosa pine forest

Histological comparisons of needle tissues of four species of white pine infected by Cronartium ribicola

Biological and molecular characterization of wild type parental and nonpathogenic mutant strains of Pseudomonas syringae pathovars phaseolicola and syringae

Irrigation water and plant density effects on the epidemiology of aerial stem rot of potatoes

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