Index Catalog // ScholarsArchive@OSU

Characterizing novel bacterial isolates that inhibit the growth of gall-forming phytopathogenic bacteria

Creator:: Belcher, Michael S.
Abstract:: Agrobacterium tumefaciens and Rhodococcus fascians are plant pathogenic bacteria that can induce crown and leafy galls on plants, respectively. Infection by these bacteria results in disfigured, unsellable plants, leading to significant economic losses to the nursery industry. A. tumefaciens and R. fascians are capable of infecting a broad range of...
Resource Type:: Poster
Full Text:: . Savory1, Mostafa Abougren 1, Melodie Putnam1, Taifo Mahmud2, and Jeff H. Chang1 Department of Botany

Histological comparisons of needle tissues of four species of white pine infected by Cronartium ribicola

Creator:: Sweeney, Katarina
Abstract:: Hypersensitive response-like (HR-like) needle reactions to infection by the white pine blister rust pathogen, Cronartium ribicola, have been reported for several species of five needle pines native to western North America. The best-studied examples are in Pinus monticola and P. lambertiana. In these species a "needle spot" phenotype has been...
Resource Type:: Masters Thesis
Full Text:: . _________________________________________________________ Katarina Sweeney, Author ACKNOWLEDGEMENTS I would like to thank Jeff Stone and the

Development and Application of Tools for Genetic Analysis of Clonal Populations

Creator:: Kamvar, Zhian N.
Abstract:: Research on the population genetics of microbial organisms requires the use of specialized analyses designed for clonal organisms to avoid violating the assumptions of traditional population genetic models. The tools necessary for performing these analyses existed as a set of unrelated software with non-overlapping capabilities and did not cover all...
Resource Type:: Dissertation
Full Text:: , written in the R statistical language, available on all computing platforms. This package is designed for

Systematics of the genus Ramaria inferred from nuclear large subunit and mitochondrial small subunit ribosomal DNA sequences

Creator:: Humpert, Andrea J.
Abstract:: Ramaria is a genus of epigeous fungi common to the coniferous forests of the Pacific Northwest of North America. The extensively branched basidiocarps and the positive chemical reaction of the context in ferric sulfate are distinguishing characteristics of the genus. The genus is estimated to contain between 200-300 species and...
Resource Type:: Masters Thesis

Analysis of the maize TOUSLED-LIKE KINASE gene family

Creator:: Yoon, Elizabeth S.
Abstract:: Protein kinases are an abundant class of enzymes which play important roles in numerous signal transduction systems. Arabidopsis TOUSLED kinase is a serine/threonine kinase which is essential for cell-cell communication within the shoot meristem. TOUSLED is encoded by a single gene in Arabidopsis. Recessive mutants in this gene show mild...
Resource Type:: Masters Thesis
Full Text:: would also like to thank the other members of my committee, Drs. Tom Wolpert, Terri Lomax, and Jeff

A G-type Lectin Receptor-like Kinase Associated with Septoria Canker Resistance and Susceptibility Described using Multi-omics and Biotechnology

Creator:: Lenz, Ryan R.
Abstract:: Managers of forest and plantation ecosystems are encountering growing problems involving plant pathogens and the expanding geographic ranges of these pathogens. Historically unexposed stands are exceptionally vulnerable when a non-native pathogen is introduced because these pathogens can cause devastating disease in a host population that lacks co-evolved resistance mechanisms. One...
Resource Type:: Dissertation
Full Text:: DISSERTATION OF Ryan R. Lenz for the degree of Doctor of Philosophy in Botany and Plant Pathology

Genetic Structure in Populations of the Douglas-fir Swiss Needle Cast Fungus Nothophaeocryptopus gaeumannii

Creator:: Bennett, Patrick I.
Abstract:: The fungus Nothophaeocryptopus gaeumannii is the causative agent of Swiss needle cast (SNC), a foliar disease of Douglas-fir. Disease is characterized by premature loss of foliage and reduced growth resulting from the inhibition of photosynthesis due to the occlusion of stomata by the ascocarps of N. gaeumannii. Although the disease...
Resource Type:: Dissertation
Full Text:: , Dr. Jeff Stone, for his kind patience and great wisdom to which I owe a great deal of my success

Port-Orford-cedar and Phytophthora lateralis : grafting and heritability of resistance in the host, and variation in the pathogen

Creator:: McWilliams, Michael G.
Abstract:: Port-Orford-cedar (Chamaecyparis lawsoniana) is a forest tree native to a small area of Oregon and California. A root disease caused by Phytophthora lateralis causes widespread mortality of Port-Orford-cedar. This dissertation examines three important elements of the Port-Orford-cedar P. lateralis pathosystem related to breeding for disease resistance: use of resistant rootstocks...
Resource Type:: Dissertation
Full Text:: Brennan Ferguson, Marion Murray, Tina Dreisbach, and professor Jeff Stone helped move trees. Bill Reed

Integration of Evolutionary Theory and Genomics to Understand Processes Involved in Host Adaptation and Divergence in Phytophthora Plant Pathogens

Creator:: Tabima, Javier F.
Abstract:: Modern plant pathology benefits from integrating methods and concepts from evolutionary biology. For example, evolutionary concepts are used to identify and examine species boundaries of plant pathogens, recognize processes underlying pathogen biogeography, identify traits that characterize emerging species, and discover new molecular interactions that originate under processes of selection. In...
Resource Type:: Dissertation
Full Text:: , Dr. Jeff Chang. Thank you, Jeff, for all the moments you have spent with me. Whether

Characterization of the transition to the progamic phase in Zea mays pollen

Creator:: Smyth, Johanna C.
Abstract:: The transition of mature pollen to the progamic phase represents an important step in the regulation of plant sexual reproduction. The progamic phase encompasses the initiation of pollen tube germination, growth of the pollen tube through the stigma (the silk in maize) and concludes with fertilization of the female gametophyte....
Resource Type:: Dissertation
Full Text:: , Jeff Change, Aaron Liston, and my graduate student representative Walt Ream. Lastly, I am so

ScholarsArchive@OSU

Characterizing novel bacterial isolates that inhibit the growth of gall-forming phytopathogenic bacteria

Histological comparisons of needle tissues of four species of white pine infected by Cronartium ribicola

Development and Application of Tools for Genetic Analysis of Clonal Populations

Systematics of the genus Ramaria inferred from nuclear large subunit and mitochondrial small subunit ribosomal DNA sequences

Analysis of the maize TOUSLED-LIKE KINASE gene family

A G-type Lectin Receptor-like Kinase Associated with Septoria Canker Resistance and Susceptibility Described using Multi-omics and Biotechnology

Genetic Structure in Populations of the Douglas-fir Swiss Needle Cast Fungus Nothophaeocryptopus gaeumannii

Port-Orford-cedar and Phytophthora lateralis : grafting and heritability of resistance in the host, and variation in the pathogen

Integration of Evolutionary Theory and Genomics to Understand Processes Involved in Host Adaptation and Divergence in Phytophthora Plant Pathogens

Characterization of the transition to the progamic phase in Zea mays pollen

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