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

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

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:: . Michael H. Penner, Dr. Lynda M. Ciuffetti, and Dr. Mahfuzur R. Sarker, for their support, and interest

Simple sequence repeat marker development and mapping in cultivated sunflower, Helianthus annuus L.

Creator:: Yu, Ju-Kyung
Abstract:: The cultivated sunflower (Helianthus annuus L., x=17) is one of the most important annual oilseed crops in the world. There are very few publicly shared sequence-based DNA markers and genetic maps in sunflower, even though molecular DNA markers and genetic maps have become widely used in all areas of genetic...
Resource Type:: Dissertation
Full Text:: circumstances in the spring, 2000. I am thankful to members of my graduate committee, Dr. Lynda Ciuffetti, Dr

Effects of host resistance on Mycosphaerella graminicola populations

Creator:: Cowger, Christina
Abstract:: Mycosphaerella graminicola (anamorph Septoria tritici) causes Septoria tritici blotch, a globally important disease of winter wheat. Resistance and pathogenicity generally vary quantitatively. The pathogen reproduces both sexually and asexually, and the pathogen population is highly genetically variable. Several unresolved questions about the epidemiology of this pathosystem are addressed by this...
Resource Type:: Dissertation
Full Text:: Peterson, Mary Powelson, and Dave Thomas, and to Lynda Ciuffetti, Ken Johnson, and Cliff Pereira, for

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

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

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

Simple sequence repeat marker development and mapping in cultivated sunflower, Helianthus annuus L.

Effects of host resistance on Mycosphaerella graminicola populations

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