Index Catalog // ScholarsArchive@OSU

Examination of the role host-selective toxins play in fungal-plant interactions

Creator:: Andrie, Rachael M.
Abstract:: Pyrenophora tritici-repentis, causal agent of tan spot of wheat, produces multiple host-selective toxins (HSTs), including Ptr ToxA, encoded for by ToxA, Ptr ToxB, encoded for by ToxB, and Ptr ToxC. Variable distribution of these three HSTs among different isolates of P. tritici-repentis, both singularly and in all possible combinations, defines...
Resource Type:: Dissertation
Full Text:: -Selective Toxins Play in Fungal-Plant Interactions. Abstract approved: Lynda M. M. Pyrenophora tritici

Characterization of the molecular foundations and biochemistry of alkane and ether oxidation in a filamentous fungus, a Graphium species.

Creator:: Skinner, Kristin M.
Abstract:: Graphium sp., a eukaryotic alkanotroph, is able to oxidize small-molecular weight gaseous n-alkanes, diethyl ether and the branched ether, methyl tert butyl ether (MTBE). However, information regarding the biochemistry of fungal-mediated alkane and ether metabolism is limited, and questions regarding the identity of alkane oxidation catalysts and the genetic underpinnings...
Resource Type:: Dissertation
Full Text:: approved: Lynda M. Ciuffetti Graphium sp., a eukaryotic alkanotroph, is able to

Mutagenesis and Crystallization of Ptr ToxB, a host-selective toxin of Pyrenophora tritici-repentis

Creator:: Miles-Rockenfield, Kara B.
Abstract:: Pyrenophora tritici-repentis (Ptr) is the fungal causal agent of the disease tan spot in wheat and causes necrosis and chlorosis in infected leaves. These symptoms are caused by host-selective toxins (HSTs), molecules that serve as the sole determinants of pathogenicity. Ptr has three known HSTs, the proteinaceous Ptr ToxA and...
Resource Type:: Honors College Thesis
Full Text:: : ________________________________________________________________________ Lynda Ciuffetti Pyrenophora tritici-repentis (Ptr) is the fungal causal agent of the

Perceptions and experiences of students who graduate with the Associate of Arts/Oregon Transfer (AA/OT) Degree

Creator:: Scott, Patricia Marie
Abstract:: The purpose of this qualitative study was to learn about the perceptions and experiences of students who graduated with the Associates of Arts/Oregon Transfer (AA/OT) degree. This study answered the following questions: 1) How did the AA/OT degree attainment assist in the overall achievement of goals? 2) How did AA/OT...
Resource Type:: Dissertation
Full Text:: approved: Larfy D. Roper The purpose of this qualitative study was to learn about the perceptions and

Bacterial inhibition by electrolyzed oxidizing water and application to disinfection of sprout seeds

Creator:: Stan, Silvia D.
Abstract:: Alfalfa sprouts have been implicated in several salmonellosis outbreaks in recent years. Electrolysis of a NaCl solution generates, in the anode side of a two-chamber electrolyzer, acidic electrolyzed oxidizing (EO) water which contains Cl₂, HOC1, dissolved oxygen, and it is characterized by a low pH and a high oxidation reduction...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Silvia D. Stan for the

Pyoluteorin as a signaling molecule regulating secondary metabolite production and transport genes in Pseudomonas fluorescens Pf-5

Creator:: Brodhagen, Marion L.
Abstract:: A major factor in the ability of Pseudomonas fluorescens Pf-5 to act as a biological control agent is its production of antibiotics, including pyoluteorin (PLT), 2,4-diacetylphloroglucinol (2,4-DAPG) and pyrrolnitrin (PRN). The data provided in this thesis demonstrate that the presence of any of these antibiotics in the extracellular milieu affects...
Resource Type:: Dissertation
Full Text:: people, doing exciting science and having fun! My committee, Dr. Dan Arp, Dr. Lynda Ciuffetti, Dr. Walt

Control of alkane monooxygenase activity and expression in Pseudomonas butanovora

Creator:: Doughty, David M.
Abstract:: The regulation of monooxygenase enzymes has been demonstrated in bacteria that grow on methane and long chain-length alkanes (>C10). Less is known about monooxygenase regulation in short chain alkane oxidizing bacteria that grow on intermediate chain-length alkanes C2-C10. This dissertation focuses on the regulation of butane monooxygenase (BMO) expression and...
Resource Type:: Dissertation
Full Text:: members: Dan, Peter, Dr. Lynda Ciuffetti, Dr. Mark Dolan, and Dr. Kermit Cromack for their time and

Biodegradation of methyl tert-butyl ether (MTBE) and its breakdown products by propane and iso-pentane grown Mycobacterium vaccae and Graphium sp. : cometabolism, inhibition, kinetics, and modeling

Creator:: Martínez-Prado, Maria Adriana
Abstract:: Mycobacterium vaccae JOB5 and Graphium sp. were studied to evaluate their ability to cometabolize methyl tert-butyl ether (MTBE) and its metabolites after growth on two different alkanes, propane and iso-pentane. Both cultures were capable of cometabolizing MTBE and the metabolites, tert-butyl formate (TBF) and tert-butyl alcohol (TBA). MTBE, TBF, and...
Resource Type:: Dissertation
Full Text:: thank my committee members, Lynda M. Ciuffetti, Mark Dolan, Lewis Semprini, and Ronald Guenther, for

Genetic dissection of Victoria blight disease susceptibility in Arabidopsis thaliana

Creator:: Sweat, Teresa A.
Abstract:: The fungus Cochliobolus victoriae causes Victoria blight of oats and Arabidopsis and is pathogenic due to its production of a compound called victorin, which induces programmed cell death in sensitive plants. Victorin sensitivity in Arabidopsis is conferred by the dominant gene LOCUS ORCHESTRATING VICTORIN EFFECTS1 (LOV1), which encodes a coiled-coil-nucleotide...
Resource Type:: Dissertation
Full Text:: members, Lynda Ciuffetti, Joyce Loper, Dahong Zhang, Henrik Stotz, and Jeff Chang for their advice and

Students' transfer of learning of eigenvalues and eigenvectors : Implementation of actor-oriented transfer framework

Creator:: Karakok, Gulden
Abstract:: The purpose of this study was to investigate third year college students' transfer of learning of the concepts of eigenvalues and eigenvectors from the winter term physics courses to the interviews in which they participated before, during, and after these courses. Transfer of learning of each student was explored by...
Resource Type:: Dissertation
Full Text:: Manogue, Dr. Tom Dick, Dr. Maggie Niess, and Dr. Lynda Ciueffetti. I also want to share my

ScholarsArchive@OSU

Examination of the role host-selective toxins play in fungal-plant interactions

Characterization of the molecular foundations and biochemistry of alkane and ether oxidation in a filamentous fungus, a Graphium species.

Mutagenesis and Crystallization of Ptr ToxB, a host-selective toxin of Pyrenophora tritici-repentis

Perceptions and experiences of students who graduate with the Associate of Arts/Oregon Transfer (AA/OT) Degree

Bacterial inhibition by electrolyzed oxidizing water and application to disinfection of sprout seeds

Pyoluteorin as a signaling molecule regulating secondary metabolite production and transport genes in Pseudomonas fluorescens Pf-5

Control of alkane monooxygenase activity and expression in Pseudomonas butanovora

Biodegradation of methyl tert-butyl ether (MTBE) and its breakdown products by propane and iso-pentane grown Mycobacterium vaccae and Graphium sp. : cometabolism, inhibition, kinetics, and modeling

Genetic dissection of Victoria blight disease susceptibility in Arabidopsis thaliana

Students' transfer of learning of eigenvalues and eigenvectors : Implementation of actor-oriented transfer framework

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