Index Catalog // ScholarsArchive@OSU

Studies on the vesicular-arbuscular mycorrhizae of Easter lily in the Pacific Northwest

Creator:: Ames, Robert Norman
Abstract:: A study was conducted to characterize the vesicular-arbuscular (VA) mycorrhizal fungi of commercially grown Easter lily. Monthly field soil and root samples were collected from March through September, 1975, from five fields in the coastal area of southern Oregon and northern California. Soil sievings were inoculated onto clover, onion and...
Resource Type:: Masters Thesis
Full Text:: , California. Individual fields will be referred to only as A, B, C, D, and E. Field Collection and

Population Density and Phenology of Tetranychus urticae (Acari: Tetranychidae) in Hop is Linked to the Timing of Sulfur Applications

Creator:: Woods, J. L., Dreves, A. J., Fisher, Glenn C., James, David G., Wright, Larry C., and Gent, D. H.
Abstract:: The twospotted spider mite, Tetranychus urticae Koch, is a worldwide pest of numerous agronomic and horticultural plants. Sulfur fungicides are known to induce outbreaks of this pest on several crops, although mechanisms associated with sulfur-induced mite outbreaks are largely unknown. Studies were conducted during 2007–2009 in Oregon and Washington hop...
Resource Type:: Article
Full Text:: . DREVES,1 G. C. FISHER,1 D. G. JAMES,2 L. C. WRIGHT,2 AND D. H. GENT3 Environ. Entomol. 41(3): 621Ð635

Sensitivity of Disease Management Decision Aids to Temperature Input Errors Associated with Sampling Interval and Out-of-Canopy Sensor Placement

Creator:: Pfender, W. F., Gent, D. H., and Mahaffee, W. F.
Abstract:: Many plant disease epidemic models, and the disease management decision aids developed from them, are created based on temperature or other weather conditions measured in or above the crop canopy at intervals of 15 or 30 min. Disease management decision aids, however, commonly are implemented based on hourly weather measurements...
Resource Type:: Article
Full Text:: that averaged 0.2 to 0.4°C. Sensor loca- tion (in-canopy versus standard-placement) also had a

Maize Metabolic Network Construction and Transcriptome Analysis

Creator:: Monaco, Marcela K., Sen, Taner Z., Dharmawardhana, Palitha D., Ren, Liya, Schaeffer, Mary, Naithani, Sushma, Amarasinghe, Vindhya, Thomason, Jim, Harper, Lisa, Gardiner, Jack, Cannon, Ethalinda K.S., Lawrence, Carolyn J., Ware, Doreen, and Jaiswal, Pankaj
Abstract:: A framework for understanding the synthesis and catalysis of metabolites and other biochemicals by proteins is crucial for unraveling the physiology of cells. To create such a framework for Zea mays L. subsp. mays (maize), we developed MaizeCyc, a metabolic network of enzyme catalysts, proteins, carbohydrates, lipids, amino acids, secondary...
Resource Type:: Article
Full Text:: , temporal, and organism-specifi c diff erences. Several metabolic network reconstructions are currently

Diversity of ancient conifers: The jurassic seed cone bancroftiastrobus digitata gen. et sp. nov. (coniferales)

Creator:: Rothwell, Gar W., Mapes, Gene, Stockey, Ruth A., and Hilton, Jason
Abstract:: Premise of research. A third genus of anatomically preserved conifer seed cones has been recognized from a Late Jurassic deposit in northeastern Scotland. This cone is described as Bancroftiastrobus digitata Rothwell, Mapes, Stockey et Hilton. Methodology. The cone was sectioned with the classic coal ball peel technique and studied and...
Resource Type:: Article
Full Text:: inverted-U-shaped scale trace. More distally, the scale trace flattens and divides into a single row of C

The Influence of Nitrogen Fertility on Hop Quality, Pest Management, and the Stability of Biological Control

Creator:: Iskra, Anne E.
Abstract:: A multi-year field study was conducted in Oregon and Washington to evaluate the influence of nitrogen fertilization rate and timing on cone quality, nitrate accumulation in cones, severity of powdery mildew (caused by Podosphaera macularis), arthropod pests, and the stability of conservation biological control of the twospotted spider mite (Tetranychus...
Resource Type:: Masters Thesis
Full Text:: Pathology Dean of the Graduate School I understand that my thesis will

Transposon-induced nutritional and virulence mutants in two pathovars of Pseudomonas syringae

Creator:: Anderson, Dirk M.
Resource Type:: Masters Thesis
Full Text:: target DNA; (B) one DNA strand at each end of the transposon is joined to the cleaved target DNA. (C) The

Thiamine in plants: Aspects of its metabolism and functions

Creator:: Goyer, Aymeric
Abstract:: Thiamine diphosphate (vitamin B1) plays a fundamental role as an enzymatic cofactor in universal metabolic pathways including glycolysis, the pentose phosphate pathway, and the tricarboxylic acid cycle. In addition, thiamine diphosphate has recently been shown to have functions other than as a cofactor in response to abiotic and biotic stress...
Resource Type:: Article
Full Text:: carteri) (Croft et al., 2007). When C. reinhardtii cells are grown without thiamine, two THIC

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:: lesion (arrow) on symptomatic cowpea (B) oospore (C) sporangium of the pathogen, produced after 10 days

Diseases of Rhododendron and Boxwood: Survey and Virulence of Phytophthora Root Rot and Management of Boxwood Blight with Systemic Fungicides

Creator:: Sacher, Gabriel
Abstract:: Diseases can be a substantial threat to woody plant production, a major industry in Oregon. Boxwood (Buxus spp.) and rhododendron (Rhododendron subgenus Rhododendron and Hymenanthes) represent the top two broadleaf evergreen woody plants by farmgate value in Oregon. Historically, Phytophthora root rot has been considered the most destructive disease of...
Resource Type:: Dissertation
Full Text:: studies, and the only boxwood blight causal species known in the USA, this review will be assuming C

ScholarsArchive@OSU

Studies on the vesicular-arbuscular mycorrhizae of Easter lily in the Pacific Northwest

Population Density and Phenology of Tetranychus urticae (Acari: Tetranychidae) in Hop is Linked to the Timing of Sulfur Applications

Sensitivity of Disease Management Decision Aids to Temperature Input Errors Associated with Sampling Interval and Out-of-Canopy Sensor Placement

Maize Metabolic Network Construction and Transcriptome Analysis

Diversity of ancient conifers: The jurassic seed cone bancroftiastrobus digitata gen. et sp. nov. (coniferales)

The Influence of Nitrogen Fertility on Hop Quality, Pest Management, and the Stability of Biological Control

Transposon-induced nutritional and virulence mutants in two pathovars of Pseudomonas syringae

Thiamine in plants: Aspects of its metabolism and functions

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

Diseases of Rhododendron and Boxwood: Survey and Virulence of Phytophthora Root Rot and Management of Boxwood Blight with Systemic Fungicides

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