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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

Plant responses induced by Ptr ToxA and Ptr ToxB, host-selective toxins produced by Pyrenophora tritici-repentis

Creator:: Mankaney, Aakash
Abstract:: Pyrenophora tritici-repentis (Ptr) is the causal agent of the disease tan spot of wheat, which can be responsible for the destruction of up to 50% of a wheat crop harvest. Tan spot disease results in chlorotic and/or necrotic lesions triggered by the pathogen’s production of one or several host-selective toxins...
Resource Type:: Honors College Thesis
Full Text:: : ________________________________________________________________________ Lynda Ciuffetti Pyrenophora tritici-repentis (Ptr) is the causal agent of the disease

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

Pyrenophora tritici-repentis : investigation of factors that contribute to pathogenicity

Creator:: Holman, Thomas W.
Abstract:: Pyrenophora tritici-repentis (Ptr) is the necrotrophic fungus responsible for tan spot of wheat (Triticum aestivum). Ptr causes disease on susceptible wheat cultivars through the production and secretion of host-selective toxins (HSTs). HSTs are compounds that are only known to be produced by fungi and considered to be primary determinants of...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: Lynda M. Ciuffetti Pyrenophora tritici-repentis (Ptr) is the necrotrophic

Small secreted proteins of pyrenophora tritici-repentis and their role in wheat Infection

Creator:: Hernandez, Jason, Manning, Viola, Pandelova, Iovanna, and Ciuffetti, Lynda M.
Abstract:: Host-selective toxins (HSTs) secreted by the pathogenic isolate of Pyrenophora tritici-repentis, BFP, are major pathogenicity factors in tan spot disease of wheat. Along with characterized HSTs such as Ptr ToxA (ToxA), BFP secretes at least two more uncharacterized toxic components. In an attempt to identify these additional components, 12 candidate...
Resource Type:: Research Paper
Full Text:: opportunity of this research, Viola Manning, Iovanna Pandelova, and Dr. Lynda M. Ciuffetti for spending many

Necrotrophic Effector Epistasis in the Pyrenophora tritici-repentis-Wheat Interaction

Creator:: Manning, Viola A. and Ciuffetti, Lynda M.
Abstract:: Pyrenophora tritici-repentis, the causal agent of tan spot disease of wheat, mediates disease by the production of host-selective toxins (HST). The known toxins are recognized in an 'inverse' gene-for-gene manner, where each is perceived by the product of a unique locus in the host and recognition leads to disease susceptibility....
Resource Type:: Article
Full Text:: -Wheat Interaction Manning, V. A., & Ciuffetti, L. M. (2015). Necrotrophic Effector Epistasis in the

Characterization of the response mediated by the plant disease susceptibility gene LOV1

Creator:: Gilbert, Brian M.
Abstract:: Victoria blight, caused by fungus Cochliobolus victoriae, is a disease originally described on oats and recapitulated on Arabidopsis. Victoria blight is used as a model plant disease that conforms to an inverse gene-for-gene interaction. C. victoriae virulence is dependent upon its production of victorin, a host-specific toxin that induces programmed...
Resource Type:: Dissertation
Full Text:: , Drs. Lynda Ciuffetti, Ken Johnson, John Fowler, and Anthony Wilcox for their guidance throughout 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

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.

Plant responses induced by Ptr ToxA and Ptr ToxB, host-selective toxins produced by Pyrenophora tritici-repentis

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

Pyrenophora tritici-repentis : investigation of factors that contribute to pathogenicity

Small secreted proteins of pyrenophora tritici-repentis and their role in wheat Infection

Necrotrophic Effector Epistasis in the Pyrenophora tritici-repentis-Wheat Interaction

Characterization of the response mediated by the plant disease susceptibility gene LOV1

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

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