Index Catalog // ScholarsArchive@OSU

Identifying QTLs for Sustainability Traits (Disease Resistance and Malt Quality) in the Facultative/Winter 6-rowed Elite Malting Barley GWAS Panel, the TCAP FAC-WIN6

Creator:: Belcher, Araby Ruth
Abstract:: This dissertation consists of a general introduction, three research manuscripts, and general conclusions regarding the mapping of quantitative trait loci (QTLs) for sustainability traits in the Triticeae Coordinated Agricultural Project (TCAP) facultative/winter 6-rowed elite malting barley genome-wide association studies (GWAS) mapping panel, the TCAP FAC-WIN6. The first research manuscript, a...
Resource Type:: Dissertation

Influence of site, soil, and inoculum density on dwarf bunt (Tilletia controversa Kühn) of winter wheat

Creator:: Clark, Deborah Ann, 1954-
Abstract:: Field microplot studies conducted over two seasons (1982-1984) evaluated the influence of four physically and chemically diverse soils collected from Pacific Northwest wheat fields on the incidence of dwarf bunt of winter wheat caused by Tilletia controversa Kuhn. These soils were placed at Flora and Pendleton, Oregon to determine the...
Resource Type:: Masters Thesis
Full Text:: after they were mixed with 5 rates of inoculum (0.0 - 20 g T. controversa teliospores/45 kg of soil

Contributions of ammonia-oxidizing bacteria and archaea to nitrification in forest soils

Creator:: Lu, Xinda
Abstract:: Prior to 2005, ammonia oxidation, the first step of nitrification, was thought mediated mainly by ammonia-oxidizing bacteria (AOB). However, the discovery of Thaumarchaeota carrying the genes coding for the ammonia monooxygenase (AMO) enzyme led to the discovery that ammonia-oxidizing archaea (AOA) also contribute to nitrification. Despite the uptick in studies...
Resource Type:: Masters Thesis
Full Text:: supervision from my supervisors Dr. David Myrold and Dr. Peter Bottomley that made my journey in soils

The development and decline dynamics of two ectomycorrhizal fungal mat soil microbial communities in response to a reciprocal soil transfer experiment in old-growth Douglas-fir forests

Creator:: Cappellazzi, Jed E.
Abstract:: Ectomycorrhizal fungi (EmF) form symbioses with trees. These symbioses profoundly influence forest ecology. Certain EmF form specialized profusions of hyphae, known as ectomycorrhizal fungal mats (mats) which are visible to the naked eye, alter forest soil biogeochemistry, substantially contribute to soil microbial biomass/respiration and support unique microbial communities. Piloderma and...
Resource Type:: Masters Thesis
Full Text:: Forest Ecosystems and Society. I would also like to thank my committee members Peter Bottomley and

Response of potato cultivars to moisture deficit stress and Verticillium dahliae

Creator:: Arbogast, Meghan Canfield
Resource Type:: Masters Thesis
Full Text:: valuable input and enthusiasm. I thank committee members Dr. Peter Bottoniley who served as my minor

Variation in communities of ammonia-oxidizing and denitrifying bacteria in Fennoscandian boreal forest soils

Creator:: Ghimire, Rama D.
Abstract:: The objective of this study was to examine the variation among ammonia-oxidizing and denitrifying communities in soils of a natural Fennoscandian boreal forest and of a forest with a long history of fertilization with different levels of nitrogen (N), and to examine whether there are any changes in the microbial...
Resource Type:: Masters Thesis
Full Text:: fragment length polymorphism (T-RFLP), a fingerprinting method, was used to examine the variation of

The link between nitrogen cycling and soil microbial community composition in forest soils of western Oregon

Creator:: Boyle, Stephanie A.
Abstract:: The objectives of this thesis were to examine the links between soil microbial community composition and function using the nitrogen (N) cycle as a model for these interactions and to assess the impact of environmental factors such as microclimate, vegetation type, and nutrient availability on microbial diversity and N transformations...
Resource Type:: Dissertation
Full Text:: determined by terminal restriction fragment length polymorphism (T-RFLP) profiles targeting the gene for

Decomposition of cattail and bulrush plant parts in a constructed wetland treating pulp mill effluent

Creator:: Walz, Anita
Abstract:: Dried cattail and bulrush plant pieces in mesh bags were incubated in the constructed wetland treating Pope & Talbot pulp mill effluent. Two ponds planted with each species and two depth ranges in each pond were chosen, to determine decomposition rates. Bags were withdrawn and analyzed at five time points...
Resource Type:: Masters Thesis
Full Text:: first day (26.5% for cattail, 23% for bulrush). After this the t-test (95% confidence) showed a

Electron donor and chlorinated ethene effects on activity and community composition in anaerobic reductively dechlorinating consortia

Creator:: Sabalowsky, Andrew R.
Abstract:: This research focused on anaerobic transformation of trichloroethene (TCE), a groundwater contaminant. The mixed anaerobic Evanite culture (EV) was studied to determine community behavior and composition responses to different electron donors and chloroethene electron acceptors. The potential toxicity from high concentrations of TCE and its daughter product cis-1,2-dichloroethene (cDCE) was...
Resource Type:: Dissertation
Full Text:: like to express deep gratitude to the members of my advising committee, Drs. Peter Bottomley, Mark

Factors controlling halogenated and nonhalogenated alkene growth substrate range of vinyl chloride-utilizing bacteria

Creator:: Taylor, Anne Elizabeth
Abstract:: This thesis explores the factors limiting the alkene substrate range of the vinyl chloride (VC)-utilizing bacteria, and describes a method for measuring VC transformation in situ. Vinyl fluoride (VF) was evaluated as a surrogate for monitoring aerobic VC-transformation utilizing three isolates, Mycobacterium EE13a, Mycobacterium JS60 and Nocardioides JS614. JS614 grew...
Resource Type:: Dissertation
Full Text:: my co-advisor Peter Bottomley for agreeing to guide me through a second advanced degree. His

ScholarsArchive@OSU

Identifying QTLs for Sustainability Traits (Disease Resistance and Malt Quality) in the Facultative/Winter 6-rowed Elite Malting Barley GWAS Panel, the TCAP FAC-WIN6

Influence of site, soil, and inoculum density on dwarf bunt (Tilletia controversa Kühn) of winter wheat

Contributions of ammonia-oxidizing bacteria and archaea to nitrification in forest soils

The development and decline dynamics of two ectomycorrhizal fungal mat soil microbial communities in response to a reciprocal soil transfer experiment in old-growth Douglas-fir forests

Response of potato cultivars to moisture deficit stress and Verticillium dahliae

Variation in communities of ammonia-oxidizing and denitrifying bacteria in Fennoscandian boreal forest soils

The link between nitrogen cycling and soil microbial community composition in forest soils of western Oregon

Decomposition of cattail and bulrush plant parts in a constructed wetland treating pulp mill effluent

Electron donor and chlorinated ethene effects on activity and community composition in anaerobic reductively dechlorinating consortia

Factors controlling halogenated and nonhalogenated alkene growth substrate range of vinyl chloride-utilizing bacteria

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