Index Catalog // ScholarsArchive@OSU

Fungitoxicity of silver salts

Creator:: Guilford, Roger Kirby
Abstract:: The demand for new fungicides to control plant diseases has led to experimentation with both previously used and newly developed fungicides. Silver, an older but little used fungicide, was selected for evaluation because of its high toxicity to microorganisms. Silver nitrate and a silver electrolytic cell were tested as potential...
Resource Type:: Masters Thesis
Full Text:: gratitude to Dr. Malcolm E. Corden and Dr. Roy A. Young for their guidance and encouragement offered

The development and use of breaking radius and impact bending tests for measuring wood strength loss caused by basidiomycetes isolated from air-seasoning Douglas-fir

Creator:: Sexton, Camille Marie
Abstract:: Douglas-fir utility poles are routinely air seasoned before treatment with chemical preservatives. Basidiomycetous fungi invade these poles and may cause strength loss during air seasoning or later if treatment temperatures are insufficient to kill the decay fungi. The purpose of this study was to develop a rapid test to asses...
Resource Type:: Masters Thesis

Factors influencing the effectiveness of activated carbon used to protect newly-seeded grasses from herbicides

Creator:: Burr, Ronald J.
Abstract:: Previous research has shown that activated carbon is effective in inactivating certain herbicides applied as a preemergence treatment. Studies were conducted in the greenhouse to determine the influence of various factors on the ability of activated carbon to inactivate herbicides applied after carbon application. Field studies were conducted to determine...
Resource Type:: Masters Thesis
Full Text:: . My appreciation is expressed to Dr. Malcolm E. Corden for his critical review and suggestions for

The influence of herbicide placement in soil on toxicity to emerging seedlings

Creator:: Nishimoto, R. K. (Roy Katsuto), 1944-
Abstract:: Previous research has indicated several soil-applied herbicides are more effective by exposure to emerging shoots than from root uptake. Studies were conducted in the greenhouse and growth chamber to investigate effects of herbicide placement in soil on toxicity to emerging seedlings. In these studies, an inch of treated soil was...
Resource Type:: Masters Thesis
Full Text:: his critical review and correction of this manuscript. My appreciation is expressed to Dr. Malcolm E

Stimulation of mycelial growth of Endothia parasitica by specific heavy metals that detoxify accumulated oxalate

Creator:: Englander, Carol Marcus
Abstract:: Mycelial growth of Endothia parasitica was stimulated by relatively high concentrations of CuSO₄ in potato dextrose agar medium (PDA). Stimulation of E. parasitica by the high levels of CuSO₄ and the relatively poor growth of this fungus on standard culture media suggested that stimulation might be due to interaction of...
Resource Type:: Masters Thesis
Full Text:: sincere appreciation to Dr. Malcolm E. Corden for his continuous guidance and encouragement during the

Hydroperoxide formation in the radiolysis of aqueous DNA and the pyrimidine bases

Creator:: Schwiebert, Maris Carol
Abstract:: The formation of cytosine hydroperoxide was detected in aqueous cytosine solutions irradiated with Co-60 γ-rays at pH 2. The nucleotide of cytosine, cytidylic acid, forms a hydroperoxide which was detected in neutral solution. The stability of the hydroperoxides of cytosine, thymine, and their nucleotides was found to be a function...
Resource Type:: Masters Thesis
Full Text:: FORMATION IN THE RADIOLYSIS OF AQUEOUS DNA AND THE PYRIMIDINE BASES Abstract approved: Dr. Malcolm Daniels

Developing a system of mutagenesis in Francisella tularensis LVS

Creator:: Flax, Lindsay A.
Abstract:: Francisella tularensis is a gram-negative facultative intracellular coccobacillus that primarily infects macrophages. The causative agent of tularemia, this bacterium is considered among the most infectious organisms known, requiring fewer than ten organisms to cause disease. Although ubiquitous in nature, transmission to humans is rare but can occur via insect bites,...
Resource Type:: Masters Thesis
Full Text:: approved: Malcolm Lowry Francisella tularensis is a gram-negative facultative intracellular

The solid state photochemistry and photophysics of a triphenylmethyl dye cyanide

Creator:: Vernier, David L.
Abstract:: Triphenylmethyl dye cyanides have been known to be sensitive to ultraviolet radiation since early in this century. Under appropriate conditions, exposure to uv leads to heteropolar fission of the C-CN bond (photoionization) and intense coloration due to dye formation. Thin homogeneous films of hexahydroxyethyl pararosaniline cyanide in a nylon matrix...
Resource Type:: Masters Thesis
Full Text:: central carbon atom. The spectra show strong absorption (e max =4x1041iter molelem1) in the region 250

Methylisothiocyanate as a wood fumigant : fungitoxicity to Poria carbonica in wood and gelatin encapsulation for use in wood products

Creator:: Zahora, Andrew Roy
Abstract:: Experiments were conducted to determine both the influence of wood moisture content on the fungitoxicity of methylisothiocyanate (MIT) to the wood-decay fungus Poria carbonica, and the ability of gelatin to safely en-capsulate MIT for efficient treatment of wood products. The fungitoxicity of MIT was studied by determining the product of...
Resource Type:: Masters Thesis
Full Text:: and Gelatin Encapsulation for use in Wood Products Abstract approved: Redacted for Privacy M. E

Morphological and meristic characteristics of ten populations of blackside dace, Rhinichthys osculus nubilus (Girard ), from western Oregon

Creator:: Zirges, Malcolm H.
Abstract:: Blackside dace, Rhinichthys osculus nubilus (GIRARD), were collected from ten western Oregon streams and examined for variation among morphological and meristic characters. Several characters were observed to vary between populations studied. Number of vertebrae, number of scales in and above the lateral line, length of snout, and depth of body...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF MALCOLM HARTWELL ZIRGES for the

ScholarsArchive@OSU

Fungitoxicity of silver salts

The development and use of breaking radius and impact bending tests for measuring wood strength loss caused by basidiomycetes isolated from air-seasoning Douglas-fir

Factors influencing the effectiveness of activated carbon used to protect newly-seeded grasses from herbicides

The influence of herbicide placement in soil on toxicity to emerging seedlings

Stimulation of mycelial growth of Endothia parasitica by specific heavy metals that detoxify accumulated oxalate

Hydroperoxide formation in the radiolysis of aqueous DNA and the pyrimidine bases

Developing a system of mutagenesis in Francisella tularensis LVS

The solid state photochemistry and photophysics of a triphenylmethyl dye cyanide

Methylisothiocyanate as a wood fumigant : fungitoxicity to Poria carbonica in wood and gelatin encapsulation for use in wood products

Morphological and meristic characteristics of ten populations of blackside dace, Rhinichthys osculus nubilus (Girard ), from western Oregon

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