Index Catalog // ScholarsArchive@OSU

Silviculture Impacts and Population Genomics of Coniferiporia sulphurascens, the Causal Agent of Laminated Root Rot

Creator:: McMurtrey, Shawn
Abstract:: Within the Pacific Northwest, USA, root diseases of conifers are a major forest health concern. These diseases are primarily caused by basidiomycete fungi. These fungal associates play a vital role in carbon sequestration but also have a significant negative economic impact within the timber industry. As a result, research on...
Resource Type:: Masters Thesis
Full Text:: . L., Dupont, P.-Y., Feau, N., Hamelin, R. C., … and Williams N.M. 2018. Genetic diversity of

New Tools for Managing Erysiphe necator: Rapid Sampling Approaches and an Exploration of Grower Opinions and Perspectives towards Collective Action and Information Transfer

Creator:: Lowder, Sarah R.
Abstract:: The scale of pest and disease dispersal is often larger than the scale of individual farms. Therefore, an individual grower’s response to pests and diseases can affect and is affected by their surrounding growing region. Individual growers are also not isolated, and engage in various forms of information gathering, sharing,...
Resource Type:: Dissertation
Full Text:: samples with molecular confirmation (leaf swabs; n=915) and rotating arm impaction traps (impaction

Permineralized Mesozoic Moss Gametophytes and their Implications for Bryophyte Evolution

Creator:: Bippus, Alexander C.
Abstract:: Mosses (Phylum Bryophyta) are widely considered to be among the most ancient groups of land plants (embryophytes) and they are the second most speciose embryophyte phylum with ~13,000 extant species. Despite their diversity and antiquity, mosses have a limited fossil record, which primarily consists of gametophytes entombed in Cenozoic amber....
Resource Type:: Dissertation
Full Text:: . Deng, Z.-X. Wang, J.-L. Dong, and B.-N. Sun. 2016. A new thalloid liverwort: Pallaviciniites

Spatiotemporal Assessment of Crop Histories in the Pacific Northwest

Creator:: Kumbhakar, Ishika G.
Abstract:: The cultivated potato (Solanum tuberosum) is one of the most important food crops in the United States, as well as globally. As demand rises, growers in the Pacific Northwest are revisiting their crop management strategies to determine whether there are additional ways to enhance crop productivity while managing plant and...
Resource Type:: Masters Thesis
Full Text:: historical observations of pathogen presence or abundance. 15 References Agrios, G. N

Host and Pathogen Genetics in the Sharp Eyespot Disease of Wheat

Creator:: Liu, Jiang
Abstract:: Wheat sharp eyespot (SES), caused by the soil-borne fungus Rhizoctonia cerealis is a common stem disease of wheat globally. The disease caused a severe and extensive epidemic throughout the Willamette Valley of Oregon in 2014 and has remained one of the most important wheat diseases in this region. However, litte...
Resource Type:: Dissertation
Full Text:: resistance QTLs across multiple environments. 13 1.7 References Akter N

Insights into the pathology and epidemiology of Phytophthora ramorum, causal agent of sudden oak death

Creator:: Daniels, Hazel A.
Abstract:: Sudden oak death is caused by the clonally reproducing generalist oomycete Phytophthora ramorum. The pathogen can infect more than 130 different plant hosts including Quercus spp., Larix kaempferi, and Notholithocarpus densiflorus, as well as common nursery genera such as Rhododendron and Camelia, where it causes symptoms ranging from bleeding cankers...
Resource Type:: Dissertation
Full Text:: grouped for separate analyses: EU1 & NA1 Mixed Group (n = 88) includes EU1, EU1 Resample (before

Fungal Secondary Metabolism of Basidiobolus meristosporus: a Novel Natural Product Reservoir

Creator:: Trautman, Ian A.
Abstract:: Secondary metabolites (SMs) play an integral role in the life history of most fungal species. Fungal metabolomic studies provide insights into how fungi perform certain ecological functions, how they compete and interact with other organisms, and the breadth of fungal chemodiversity. Fungal SMs have also been utilized for a variety...
Resource Type:: Masters Thesis
Full Text:: the domains are separated by an 6 N-methylation domain in modules which incorporate an N

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
Full Text:: – original draft, Writing – review & editing. Elena N. Dupen: Writing – review and editing, Visualization

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:: leaves per replication with replication in time (n = 3). Temperature was randomly assigned to a growth

Environmental Factors Affecting Phytophthora Root Rot of Rhododendron

Creator:: Mestas, Angie
Abstract:: Phytophthora root rot decreases availability and quality of rhododendrons produced in the USA. Symptoms of Phytophthora root rot include root necrosis, leaf chlorosis, stunting, and permanent wilt. The purpose of this thesis was to better understand the impact of root damage, soil moisture, nitrogen fertilizer application, and pathogen species on...
Resource Type:: Masters Thesis
Full Text:: impact of increasing N fertilizer rate on the progression and severity of Phytophthora root rot of

ScholarsArchive@OSU

Silviculture Impacts and Population Genomics of Coniferiporia sulphurascens, the Causal Agent of Laminated Root Rot

New Tools for Managing Erysiphe necator: Rapid Sampling Approaches and an Exploration of Grower Opinions and Perspectives towards Collective Action and Information Transfer

Permineralized Mesozoic Moss Gametophytes and their Implications for Bryophyte Evolution

Spatiotemporal Assessment of Crop Histories in the Pacific Northwest

Host and Pathogen Genetics in the Sharp Eyespot Disease of Wheat

Insights into the pathology and epidemiology of Phytophthora ramorum, causal agent of sudden oak death

Fungal Secondary Metabolism of Basidiobolus meristosporus: a Novel Natural Product Reservoir

Landscape Genomics and Climatic Responses of Willamette Valley Alders

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

Environmental Factors Affecting Phytophthora Root Rot of Rhododendron

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