Index Catalog // ScholarsArchive@OSU

Distribution and characterization of ice nucleation active strains of Pseudomonas syringae from diseased woody plants and grasses

Creator:: Baca, Steve
Abstract:: In a recent survey, it was observed that many woody plant species grown in Pacific Northwest nurseries exhibited disease symptoms typical of a bacterial infection and Pseudomonas syringae was commonly isolated from these tissues. The distribution of the ice nucleation phenotype among P. syringae strains recovered from these infected woody...
Resource Type:: Masters Thesis
Full Text:: Steve Baca for the degree of Master of Science in Botany and Plant Pathology presented on April 11

Development and Application of Tools for Genetic Analysis of Clonal Populations

Creator:: Kamvar, Zhian N.
Abstract:: Research on the population genetics of microbial organisms requires the use of specialized analyses designed for clonal organisms to avoid violating the assumptions of traditional population genetic models. The tools necessary for performing these analyses existed as a set of unrelated software with non-overlapping capabilities and did not cover all...
Resource Type:: Dissertation
Full Text:: , written in the R statistical language, available on all computing platforms. This package is designed for

Effects of variation in ecosystem carryover on biodiversity and community structure of forest floor bryophytes and understory vascular plants : a retrospective approach

Creator:: Traut, Bibit Halliday
Resource Type:: Masters Thesis
Full Text:: members: Steve Acker, Bruce McCune, and Patricia Muir for their time and help. Dr. Acker was instrumental

Developing models to predict favorable environments for rice blast

Creator:: Calvero, Silvino B.
Abstract:: Statistical analyses were used to develop predictive models of rice blast and to relate the favorability of environment to disease incidence and severity on different rice cultivars at five sites in Asia. The WINDOW PANE program was used to search for weather factors highly correlated with blast. Stepwise and r-square...
Resource Type:: Masters Thesis
Full Text:: to search for weather factors highly correlated with blast. Stepwise and r-square linear regression

Population viability analysis of endangered plant species : an evaluation of stochastic methods and an application to a rare prairie plant

Creator:: Kaye, Thomas N.
Abstract:: Transition matrix models are one of the most widely used tools for assessing population viability. The technique allows inclusion of environmental variability, thereby permitting estimation of probabilistic events, such as extinction. However, few studies use the technique to compare the effects of management treatments on population viability, and fewer still...
Resource Type:: Dissertation
Full Text:: , Eric Peterson, Ed Hoover, Margaret Evans, Steve Gisler, Lupin Loel, Melissa Peterson, Jill Van Winkle

Genetic diversity of the narrow endemic Astragalus oniciformis (Fabaceae)

Creator:: Alexander, J. Andrew, Liston, Aaron, and Popovich, Steve J.
Abstract:: Astragalus oniciformis Barneby is a narrow endemic xerophyte of the upper Snake River Plain of central Idaho, USA, where it inhabits stabilized, aeolian sand deposits and previously burned, sandy sites over Quaternary basalt flows. The objective of this study was to determine the levels and distribution of genetic differentiation within...
Resource Type:: Article
Full Text:: ALEXANDER, AARON LISTON, AND STEVE J. POPOVICH2 Department of Botany and Plant Pathology, Oregon State

Genomic and biological analysis of Grapevine leafroll-associated virus 7 reveals a possible new genus within the family Closteroviridae

Creator:: Al Rwahnih, Maher, Doljab, Valerian V., Dauberta, Steve, Koonin, Eugene V., and Rowhani, Adib
Abstract:: Deep sequencing analysis of an asymptomatic grapevine revealed a virome containing five RNA viruses and a viroid. Of these, Grapevine leafroll-associated virus 7 (GLRaV-7), an unassigned closterovirus, was by far the most prominently represented sequence in the analysis. Graft-inoculation of the infection to another grape variety confirmed the lack of...
Resource Type:: Article
Full Text:: A R R A A K G L C G D L C 1 h t C o l t l r t y v e s t 2 e 0 d Virus Research 163 (2012) 302

Impacts of ponderosa pine forest restoration treatments on the ectomycorrhizal fungal community and fine root biomass in the Blue Mountains of Oregon

Creator:: Smith, Jane E. (Jane Elizabeth)
Abstract:: Before the arrival of Euro-Americans, the inland Pacific Northwest was settled by native people whose frequent intentional burning of the landscape promoted open stands dominated by large fire-resistant ponderosa pine. Fire suppression for nearly a century, livestock grazing, and logging of the largest trees has resulted in forests characterized by...
Resource Type:: Dissertation
Full Text:: critical assistance in implementing treatments. I am grateful to my committee (Joey Spatafora, Steve

Ecological thresholds, climate extremes, and tree species' distributions across the Pacific coastal United States

Creator:: Lintz, Heather E.
Abstract:: Species' distributions across the landscape are perhaps the least understood yet most conspicuous features of life on earth. Ecologists have long studied species' distributions; yet, many questions remain about why species occur where they do. Such questions persist largely because species' distributions are complex systems with challenging properties like non-linearity,...
Resource Type:: Dissertation
Full Text:: to my committee members, Andrew Gray, Alix Gitelman, Ron Neilson, and Steve Sharrow. My

A systematic and ecological study of Astragalus diaphanus (Fabaceae)

Creator:: Wright, Carolyn E.
Abstract:: Astragalus diaphanus is a rare plant endemic to the John Day River drainage of north-central Oregon. This species has several interesting features, including the dimorphism of its fruit and its geographical isolation from the two nearest taxonomically related species, which occur in Colorado. This study addressed the species' distribution and...
Resource Type:: Masters Thesis
Full Text:: . Chambers, Dr. T.C. Moore, Dr. R. Frenkel, and Dr. D. Baisted, for their interest and careful reading of

ScholarsArchive@OSU

Distribution and characterization of ice nucleation active strains of Pseudomonas syringae from diseased woody plants and grasses

Development and Application of Tools for Genetic Analysis of Clonal Populations

Effects of variation in ecosystem carryover on biodiversity and community structure of forest floor bryophytes and understory vascular plants : a retrospective approach

Developing models to predict favorable environments for rice blast

Population viability analysis of endangered plant species : an evaluation of stochastic methods and an application to a rare prairie plant

Genetic diversity of the narrow endemic Astragalus oniciformis (Fabaceae)

Genomic and biological analysis of Grapevine leafroll-associated virus 7 reveals a possible new genus within the family Closteroviridae

Impacts of ponderosa pine forest restoration treatments on the ectomycorrhizal fungal community and fine root biomass in the Blue Mountains of Oregon

Ecological thresholds, climate extremes, and tree species' distributions across the Pacific coastal United States

A systematic and ecological study of Astragalus diaphanus (Fabaceae)

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