Index Catalog // ScholarsArchive@OSU

A molecular phylogeny for the Mimulus moschatus alliance (Scrophulariaceae) and its conservation implications

Creator:: Whittall, Justen Bryant
Resource Type:: Masters Thesis
Full Text:: Amsberry, Dylan Keon, Dave Gernandt, Ankie Camacho, Barbara Wilson, and Bill Robinson have provided

A survey of Agrobacterium strains associated with Georgia pecan trees and an immunological study of the bacterium

Creator:: Bouzar, Hacène
Abstract:: Crown gall was found in numerous pecan orchards in Georgia. In some instances, 60% of the trees were diseased. Galled trees were less vigorous than noninfected trees. Among the pathogenic Agrobacterium strains isolated from 18 galled trees from six counties, biovar 1 strains predominated and most were sensitive to agrocin...
Resource Type:: Masters Thesis
Full Text:: , and Dave Schisler. Most importantly, my parents and family are deserving of special thanks. I am

Advances in molecular systematics of clavicipitaceous fungi (Sordariomycetes: Hypocreales)

Creator:: Kepler, Ryan M.
Abstract:: Historical concepts of Clavicipitaceae have included a broad range of species that display diverse morphologies, ecological modes and host associations. When subjected to multigene phylogenetic investigation of evolutionary history, the family was found to be polyphyletic, largely driven by diversity in the genus Cordyceps, previously containing over 400 taxa. The...
Resource Type:: Dissertation
Full Text:: retained owing to the placement of the type C. militaris (L.) Link, and the genera Ophiocordyceps Petch

An evaluation of the invasion potential of Kochia prostrata (forage kochia) in southwestern Idaho, USA

Creator:: Gray, Erin C.
Abstract:: Purposeful introductions of exotic species for rehabilitation efforts following wildfire are common on rangelands in the western U.S., though potential ecological impacts of introduced species in novel environments are often poorly understood. One such introduced species, Kochia prostrata (L.) Schrad (forage kochia) has been seeded on over 200,000 ha throughout...
Resource Type:: Masters Thesis
Full Text:: species, Kochia prostrata (L.) Schrad (forage kochia) has been seeded on over 200,000 ha throughout the

Analysis and prediction of patterns in lichen communities over the western Oregon landscape

Creator:: Peterson, Eric B.
Abstract:: The diverse lichen flora of the Pacific Northwest is being impacted by population growth and by forest management practices. Accumulating information about our lichen flora will improve our conservation strategies. This dissertation first collects information to improve our understanding of how lichen communities vary among forests of differing structure, and...
Resource Type:: Dissertation
Full Text:: Representative to my committee and has frequently assisted me as a regular committee member. Dave has challenged

Analysis of putative elements of plant signal transduction chains

Creator:: Verhey, Steven D.
Abstract:: The thesis begins with an introduction to signal transduction and an analysis of current understanding of plant signal transduction. There are similarities between plants and animals, but also key differences, including lack of protein kinase C and of a cAMP signaling pathway in plants, and presence in plants of calcium...
Resource Type:: Dissertation
Full Text:: Transduction Chains. Abstract approved: Terri L. Lomax The thesis begins with an introduction to signal

Autecology, reproductive ecology, and demography of Astragalus australis var. olympicus (Fabaceae)

Creator:: Kaye, Thomas N.
Abstract:: The goal of this study was to gather information on the autecology, reproductive ecology, and population dynamics of Astragalus australis var. olympicus as a baseline for conservation strategies and to help explain its restricted range. Approximately four thousand individuals occurred in four known population centers in the Olympic Mountains, Olympic...
Resource Type:: Masters Thesis
Full Text:: for privacy Kenton L. Chambers The goal of this study was to gather information on the autecology

Auxin and cytokinin interaction in tomato (Lycopersicon esculentum Mill.)

Creator:: Coenen, Catharina
Abstract:: The phytohormones auxin and cytokinin control plant development through a complex network of interactions which include synergistic, additive, and opposite effects whose mechanisms are unknown. The auxin-insensitive diageotropica (dgt) mutant provided a tool to dissect the relationship between auxin- and cytokinin-induced responses in tomato. Morphological, physiological, and molecular data support...
Resource Type:: Dissertation
Full Text:: Tomato (Lycopersicon esculenturn Mill.). Abstract approved: Terri L. Lomax The phytohormones auxin

Biological Soil Crusts of the Great Basin : An Examination of their Distribution, Recovery from Disturbance and Restoration

Creator:: Condon, Lea A.
Abstract:: We are at risk of losing the sagebrush steppe in the floristic Great Basin to the invasion of Bromus tectorum L., cheatgrass. The floristic Great Basin includes the Central Basin and Range, the Northern Basin and Range, and the Snake River Plain. The Great Basin receives most of its precipitation...
Resource Type:: Dissertation
Full Text:: floristic Great Basin to the invasion of Bromus tectorum L., cheatgrass. The floristic Great Basin

Biology, epidemiology, and biological and chemical control of Phytophthora vignae

Creator:: Fernando, W. Gerard Dilantha
Abstract:: Phytophthora vignae, causal agent of stem and root rot of cowpea (Vigna unguiculata), was reported for the first time in Sri Lanka. The pathogen was found in cowpea field soils from 3 of 5 geographic regions sampled. Only one site however, had plants exhibiting disease symptoms. Of the eight cowpea...
Resource Type:: Dissertation
Full Text:: reduced disease at 50 mg a.i./L. Exposure of a bacterial biocontrol agent to these fungicides in vitro

ScholarsArchive@OSU

A molecular phylogeny for the Mimulus moschatus alliance (Scrophulariaceae) and its conservation implications

A survey of Agrobacterium strains associated with Georgia pecan trees and an immunological study of the bacterium

Advances in molecular systematics of clavicipitaceous fungi (Sordariomycetes: Hypocreales)

An evaluation of the invasion potential of Kochia prostrata (forage kochia) in southwestern Idaho, USA

Analysis and prediction of patterns in lichen communities over the western Oregon landscape

Analysis of putative elements of plant signal transduction chains

Autecology, reproductive ecology, and demography of Astragalus australis var. olympicus (Fabaceae)

Auxin and cytokinin interaction in tomato (Lycopersicon esculentum Mill.)

Biological Soil Crusts of the Great Basin : An Examination of their Distribution, Recovery from Disturbance and Restoration

Biology, epidemiology, and biological and chemical control of Phytophthora vignae

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