Index Catalog // ScholarsArchive@OSU

Phylogeny, cospeciation, and host switching in the evolution of the ascomycete genus Rhabdocline on Pseudotsuga and Larix (Pinaceae)

Creator:: Gernandt, David S.
Abstract:: The relative role of cospeciation and host switching in the phylogenetic history of ascomycete foliar symbionts is addressed in the orders Leotiales and Rhytismatales, fungi associated predominantly with Pinaceae (Coniferales). Emphasis is placed on comparing the evolution of the sister genera Pseudotsuga and Larix (Pinaceae) with that of the pathogenic...
Resource Type:: Dissertation
Full Text:: current western North American hosts, L. occidentalis, L. lyallii, and very recently may have extended

Population viability analysis of endangered plant species : an evaluation of stochastic methods and an application to a rare prairie plant

Creator:: Kaye, Thomas N.
Abstract:: Transition matrix models are one of the most widely used tools for assessing population viability. The technique allows inclusion of environmental variability, thereby permitting estimation of probabilistic events, such as extinction. However, few studies use the technique to compare the effects of management treatments on population viability, and fewer still...
Resource Type:: Dissertation
Full Text:: viability of L. bradshawii, regardless of stochastic method (matrix selection or element selection

Characterization of strains of Scenedesmus resistant to the herbicide DCMU, (3-(3,4-dichlorophenyl)-1,1-dimethylurea)

Creator:: Smith, Muriel K.
Abstract:: Three DCMU resistant mutants of the green alga Scenedesmus obliquus D₃ are characterized. The mutants exhibit a ten fold greater resistance to DCMU than the wild type strain; this is comparable to the level of DCMU resistance detected in other DCMU resistant algae. In whole cell reactions, as well as...
Resource Type:: Masters Thesis
Full Text:: , 1983 Typed by Dianne L. Webster for Muriel K. Smith ACKNOWLEDGMENTS I wish to thank Dr. Norman

The sequestrate relatives of Russula in Australia and New Zealand

Creator:: Lebel, Teresa
Resource Type:: Dissertation
Full Text:: 1900's resident mycologists such as L. Rodway, J. B. Cleland, and G. H. Cunningham became

Systematics and phylogeny of Cordyceps and the Clavicipitaceae with emphasis on the evolution of host affiliation

Creator:: Sung, Gi-Ho
Abstract:: Cordyceps is a genus of perithecial ascomycetes. It includes over 400 species that are pathogens of arthropods and parasites of the truffle genus Elaphomyces. Based on the morphology of cylindrical asci, thickened ascus apices and filiform ascospores, it is classified in the Clavicipitaceae (Hypocreales), which also includes endophytes and epiphytes...
Resource Type:: Dissertation
Full Text:: , Kathie T. Hodge, and Walter Gams were involved in the design and editing of chapter two. Drs. Nigel L

Systematics of the genus Otidea in the Pacific Northwest

Creator:: Peterson, Eric T.
Abstract:: The fungal ascomycete genus Otidea as represented in the Pacific Northwest of North America includes eight well known species and two poorly-known species. Cladistic analysis utilizing characters from ribosomal DNA and morphology allowed the development of a robust phylogenetic species concept for Otidea. The combination of characters from the ribosomal...
Resource Type:: Masters Thesis
Full Text:: . 1991. Against consensus. Systematic Zoology 40 ( 4 ): 486-493. Berbee, M. L., J. W. Taylor. 1992

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

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

Studies on the centromere-specific histone, CenH3, of Neurospora crassa and related ascomycetes

Creator:: Phatale, Pallavi A.
Abstract:: In eukaryotes, the defined loci on each chromosome, the centromeres, accomplish the critical task of correct cell division. In some organisms, centromeres are composed of a euchromatic central core region embedded in a stretch of heterochromatin and the inheritance and maintenance of centromeres are controlled by dynamic epigenetic phenomena. Although...
Resource Type:: Dissertation
Full Text:: divided into four sub-complexes: CENP-C, CENP-T-W-S-X, CENP-H-I-K-L-M-N and CENP-O-P-Q-R- U. CENP-C

Ecology and distribution of riparian vegetation in the Trout Creek Mountains of southeastern Oregon

Creator:: Evenden, Angela G.
Resource Type:: Dissertation

ScholarsArchive@OSU

Phylogeny, cospeciation, and host switching in the evolution of the ascomycete genus Rhabdocline on Pseudotsuga and Larix (Pinaceae)

Population viability analysis of endangered plant species : an evaluation of stochastic methods and an application to a rare prairie plant

Characterization of strains of Scenedesmus resistant to the herbicide DCMU, (3-(3,4-dichlorophenyl)-1,1-dimethylurea)

The sequestrate relatives of Russula in Australia and New Zealand

Systematics and phylogeny of Cordyceps and the Clavicipitaceae with emphasis on the evolution of host affiliation

Systematics of the genus Otidea in the Pacific Northwest

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.

Studies on the centromere-specific histone, CenH3, of Neurospora crassa and related ascomycetes

Ecology and distribution of riparian vegetation in the Trout Creek Mountains of southeastern Oregon

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