Index Catalog // ScholarsArchive@OSU

Is Resistance Futile: Examining Fitness Costs Associated with QoI Resistance in E. necator

Creator:: Newbold, Chelsea L.
Abstract:: Quinone outside Inhibitor (QOI) fungicides are one of the most widely used fungicide classes (FRAC 11) in the world. This popularity is the result of their ability to effectively manage a wide array of economically important pathogen species on a broad range of crops. While having mostly preventative activity, some...
Resource Type:: Masters Thesis
Full Text:: . Title: Is Resistance Futile: Examining Fitness Costs Associated with QoI Resistance in E. necator

Incompatibility reactions and nuclear condition of three Phellinus species

Creator:: Hennon, Paul E.
Abstract:: Phellinus arctostaphyli (Long) Niemela, P. igniarius (L. ex Fr.) Quel., and P. tremulae (Bond.) Bond. et Boriss., heartrotting hymenomycetes in the family Hymenochaetaceae (Aphyllophorales), all conform to a multi-allelic heterothallic mating system. Both compatible and incompatible reactions result from pairings of homokaryons from the same basidiocarp. Homokaryons isolated from different...
Resource Type:: Masters Thesis
Full Text:: /- IF- 3%1 Typed by Susan Hennon for Paul Hennon TABT,E OF CONTENTS I. Introduction Rag! 1 II

Dry coniferous forests in the Western Oregon Cascades

Creator:: Means, Joseph E.
Abstract:: Pseudotsuga menziesii dominates the forests of the Pacific Northwest. But though it is dominat, Tsuaa heteroohylla or Abies amabilis is usually climax. Many researchers have studied Pseudotsuga on the widespread mesic sites where it is seral, but few have examined the relatively rare ecosystems in which Pseudotsuga or its associate...
Resource Type:: Dissertation
Full Text:: districts, and the H.J. Andrew Experimental Ecological Reserve (HJA) in Oregon. The six mile by six mil-e

Role of inoculum sources of Botrytis cinerea in the epidemiology of gray mold of snap beans

Creator:: Johnson, Kenneth Bjorn
Abstract:: Spore dispersal gradients and pod disease gradients from point inoculum sources of Botrytis cinerea were measured over time in two snap bean field experiments. Laboratory grown inoculum was placed at ground level in a 30 x 30 cm square at bloom initiation and removed at full bloom. Dispersal of inoculum,...
Resource Type:: Masters Thesis
Full Text:: my commitee members, Drs. C. E. Horner, N. W. Christensen, and R. G. Petersen for critically

Genome Organization in the Ectomycorrhizal Truffle Rhizopogon vesiculosus

Creator:: Lu, Dabao Sun
Abstract:: Rhizopogon vesiculosus is a common ectomycorrhizal (EM) symbiont of Pseudotusga menziesii (Douglas-fir) in the coast range of the Pacific Northwest. The species has been studied for its systematics, genet size, population structure, and competitive ability in several field and experimental studies. This thesis seeks to provide a more thorough characterization...
Resource Type:: Masters Thesis

Patterns in coastal marsh vegetation of the Juneau area, Alaska

Creator:: Stone, Catherine S.
Abstract:: A vegetation study was made of four coastal marshes near Juneau, Alaska. Results confirmed earlier studies' findings in southeast Alaska that communities or assemblages of species can be identified but from marsh to marsh these assemblages appear to have no consistent relationship to each other or to environmental "factors" such...
Resource Type:: Dissertation
Full Text:: their individual ways, formally and in- formally: Dr. Charles E. Warren, Professor of Fisheries; Dr

A Phylogenetic Perspective on the Individual Species- Area Relationship in Temperate and Tropical Tree Communities

Creator:: Yang, Jie, Swenson, Nathan G., Cao, Min, Chuyong, George B., Ewango, Corneille E. N., Howe, Robert, Kenfack, David, Thomas, Duncan, Wolf, Amy, and Lin, Luxiang
Abstract:: Ecologists have historically used species-area relationships (SARs) as a tool to understand the spatial distribution of species. Recent work has extended SARs to focus on individual-level distributions to generate individual species area relationships (ISARs). The ISAR approach quantifies whether individuals of a species tend have more or less species richness...
Resource Type:: Article
Full Text:: . Swenson3, Min Cao1, George B. Chuyong4, Corneille E. N. Ewango5, Robert Howe6, David Kenfack7, Duncan

Landscape Genomics and Climatic Responses of Willamette Valley Alders

Creator:: Kral, George L.
Abstract:: The climate of the Pacific Northwest is in flux, and existing forest ecosystems are stressed and poised to shift in fundamental ways, with or without human intervention. This dissertation probes the nature of forest responses to environmental change through investigations of morphology and genetics of three species of alder co-occurring...
Resource Type:: Dissertation

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:: problems like excessive fungicide use and buildup of resistant E. necator strains. Fungicide

Grapevine leafroll-associated virus 3

Creator:: Maree, Hans J., Almeida, Rodrigo P. P., Bester, Rachelle, Chooi, Kar Mun, Cohen, Daniel, Dolja, Valerian V., Fuchs, Marc F., Golino, Deborah A., Jooste, Anna E. C., Martelli, Giovanni P., Naidu, Rayapati A., Rowhani, Adib, Saldarelli, Pasquale, and Burger, Johan T.
Abstract:: Grapevine leafroll disease (GLD) is one of the most important grapevine viral diseases affecting grapevines worldwide. The impact on vine health, crop yield, and quality is difficult to assess due to a high number of variables, but significant economic losses are consistently reported over the lifespan of a vineyard if...
Resource Type:: Article
Full Text:: Chooi 4, Daniel Cohen5, Valerian V. Dolja6, Marc F. Fuchs7, Deborah A. Golino8, Anna E. C. Jooste9

ScholarsArchive@OSU

Is Resistance Futile: Examining Fitness Costs Associated with QoI Resistance in E. necator

Incompatibility reactions and nuclear condition of three Phellinus species

Dry coniferous forests in the Western Oregon Cascades

Role of inoculum sources of Botrytis cinerea in the epidemiology of gray mold of snap beans

Genome Organization in the Ectomycorrhizal Truffle Rhizopogon vesiculosus

Patterns in coastal marsh vegetation of the Juneau area, Alaska

A Phylogenetic Perspective on the Individual Species- Area Relationship in Temperate and Tropical Tree Communities

Landscape Genomics and Climatic Responses of Willamette Valley Alders

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

Grapevine leafroll-associated virus 3

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