Index Catalog // ScholarsArchive@OSU

Synthesis and assembly of Fucus zygote cell walls with an emphasis on alignate and fucans

Creator:: Doubet, Scott
Abstract:: Fucus distichus L. Powell zygotes were used to investigate cell wall synthesis and development and to construct a model of cell wall structure. Alginate synthesis was investigated. Zygotes were cultured in seawater containing ¹⁴C-bicarbonate. Alginate represented 12%, 37%, and 1.7% of the label recovered from whole zygotes, wall, and cytoplasm,...
Resource Type:: Dissertation
Full Text:: emphasis on alignate and fucans AN ABSTRACT OF THE THESIS OF Scott Doubet for the degree of Doctor of

The fate of organic and inorganic nitrogen inputs in an old-growth forest of the central Oregon Cascade Range

Creator:: Holub, Scott M.
Abstract:: Forests in the Pacific Northwest receive very little nitrogen through atmospheric deposition and thus studying the nitrogen cycle in this region can provide insights into how the unpolluted nitrogen cycle functions. I examined the fate of organic nitrogen versus inorganic nitrogen and the effect of tamlins on N retention by...
Resource Type:: Dissertation
Full Text:: C:N forests, would increase C sequestration, at least temporarily. © Copyright by Scott M. Holub

The parasite Aspergillus flavus Link and other fungi of the biosphere of the alkali bee Nomia melanderi Ckll., in eastern Oregon and Washington

Creator:: Baker, Gerald Merritt
Abstract:: The pathogenicity of A. flavus on alkali bee larvae was studied using sample materials from three nesting sites of these soil inhabiting bees along the Oregon-Washington state line. Soil saprophytes of the biosphere of the alkali bee were also studied. Field observations and direction of soil cores from bee beds...
Resource Type:: Dissertation
Full Text:: OF THE THESIS OF GERALD MERRITT BAKER for the DOCTOR OF PHILOSOPHY (Name) (Degree) in BOTANY (Major

A potato growth and production model

Creator:: Apple, Jeanne Debons
Abstract:: A potato plant growth and production model is developed with the objectives of analyzing management alternatives and exploring the nature of the early dying syndrome. The geographic area of focus was the centerpivot irrigated circles of Oregon's Columbia Basin. A problem analysis of the potato production system of this area,...
Resource Type:: Dissertation
Full Text:: approved: Redacted for privacy W. Scott Overton Redacted for privacy ---'-- iv V 4' ,f,' ' -,--.' .,-., 1

Hybridization between Castilleja levisecta and C. hispida : Implications for Pacific Northwest Prairie Management

Creator:: Sandlin, Isaac J., III
Abstract:: Conservation conflicts may develop on restoration sites with multiple species recovery objectives. For example, on Pacific Northwest prairies, the co-planting of the diploid cytotype of the common native wildflower Castilleja hispida with the endangered wildflower C. levisecta has resulted in putative Castilleja hybrids on restoration sites, prompting fears that genetic...
Resource Type:: Masters Thesis
Full Text:: March 15, 2018. Title: Hybridization between Castilleja levisecta and C. hispida: Implications for

Using local climate to explain temporal variation in rare plant populations

Creator:: Pfingsten, Ian A.
Abstract:: Increased temperatures due to anthropogenic-induced climate change may raise the threat of extinction for taxa with sessile life histories (e.g., plants) in the near future. Linking climate change models to demographic models may provide useful insights into the potential effects of environmental changes on rare plants, and therefore aid in...
Resource Type:: Masters Thesis
Full Text:: population models? Ecology Letters, 14(1), 1–8. Easterling, D. R., Meehl, G. A., Parmesan, C., Changnon, S

Development of in vitro lily scale budlets as related to virus elimination

Creator:: Ruttum, Joanne C.
Abstract:: Lily hybrids vary in their ability to produce virus-free (VF) bulblets when grown from virus-infected scales in tissue culture. Asiatic hybrids typically produce a higher percentage of in vitro VF scale bulblets than do Lilium longiflorum cultivars. Three hypotheses concerning the cause of this variation are tested on five lily...
Resource Type:: Masters Thesis
Full Text:: virus elimination AN ABSTRACT OF THE THESIS OF Joanne C. Ruttum for the degree of Master of Science

Role of GacSA Two-component System and Bacterial Surface Attachment in Pseudomonas syringae Virulence

Creator:: O'Malley, Megan R.
Abstract:: Pseudomonas syringae are plant pathogenic bacteria that cause disease by rapidly multiplying within the aboveground tissues of host plants. Growth of P. syringae within plant host tissues requires the disarmament of host immune defenses that limit microbial growth. To combat host defenses, P. syringae deploys a type III secretion system...
Resource Type:: Dissertation
Full Text:: ., L. S. Baker, and C. D. Upper. 1996. Raindrop momentum triggers growth of leaf-associated

Comparative gibberellin relationships in tall and dwarf peas (Pisum sativum L.)

Creator:: Anderson, James David
Abstract:: Experiments were performed to determine whether a direct correlation exists between the growth rates of tall and dwarf peas grown either in the light or in the dark and endogenous gibberellin (GA) content. Three separate but related experimental approaches were utilized: (1) the determination of possible qualitative and /or quantitative...
Resource Type:: Dissertation
Full Text:: Abstract approved: Thomas C. Moore Experiments were performed to determine whether a direct

Interrelationship of wheat cultivar mixtures, stripe rust and yield

Creator:: Akanda, Shamsul I.
Resource Type:: Dissertation
Full Text:: , Stripe Rust and Yield Abstract approved: Christopher C. Mundt Four club wheat (Triticum aestivum

ScholarsArchive@OSU

Synthesis and assembly of Fucus zygote cell walls with an emphasis on alignate and fucans

The fate of organic and inorganic nitrogen inputs in an old-growth forest of the central Oregon Cascade Range

The parasite Aspergillus flavus Link and other fungi of the biosphere of the alkali bee Nomia melanderi Ckll., in eastern Oregon and Washington

A potato growth and production model

Hybridization between Castilleja levisecta and C. hispida : Implications for Pacific Northwest Prairie Management

Using local climate to explain temporal variation in rare plant populations

Development of in vitro lily scale budlets as related to virus elimination

Role of GacSA Two-component System and Bacterial Surface Attachment in Pseudomonas syringae Virulence

Comparative gibberellin relationships in tall and dwarf peas (Pisum sativum L.)

Interrelationship of wheat cultivar mixtures, stripe rust and yield

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