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A revision of Juncus subgenus genuini (Juncaceae) in the Pacific states

Creator:: Lint, Harold LeRoy
Abstract:: A study was made of the subgenus Genuini of the genus Juncus in the Pacific States, California, Oregon and Washington. Extensive morphological comparisons, geographical distributions, habitat differences and observations of apparent presence or absence of natural hybrids provided the major data sources. Cytological studies were made, but were inconclusive. Eleven...
Resource Type:: Dissertation
Full Text:: five subspecies, J. effusus subsp. pacificus, subsp pugetensi and subsp. austrocalifornicus; J

Morphology, ultrastructure and mating of sporidia of a wheat-bunt fungus, Tilletia caries (DC.) Tul.

Creator:: Kollmorgen, James Frederick
Abstract:: The teliospore of Tilletia caries germinates to produce a promycelium with a whorl of primary sporidia at its tip. The time between emergence of the promycelium and the development of primary sporidia averaged 2.3 h. Fusion between compatible sporidia occurred within an additional 3.8 h. Primary sporidia appeared to be...
Resource Type:: Dissertation
Full Text:: ACKNOWLEDGEMENTS I wish to thank Dr. Edward J. Trione for his enthusiasm, stimu- lation and encouragement during

Development of Computational, Visualization, and Molecular Tools for Fungal and Oomycete Community Ecology

Creator:: Foster, Zachary Stephen Longiaru
Abstract:: Oomycetes are an important group of organisms with a variety of ecological roles similar to fungi. Although many are well-studied plant pathogens known for their devastating effects on agricultural systems, most are little-studied saprobes and parasites of plants and animals in nearly every ecosystem on earth. The advent of affordable...
Resource Type:: Dissertation
Full Text:: Oomycete Community Ecology Abstract approved: Niklaus J. Grünwald Oomycetes are an important group of

Conservation biology of Perideridia erythrorhiza (Apiaceae) : experimental reintroduction and life history

Creator:: Roberts, Kimberly A.
Abstract:: An experimental reintroduction was performed to determine the best method to create new populations of the tuberous species Perideridia erythrorhiza, a rare vascular plant endemic to southern Oregon. Only a handful of sites are currently present, and many of these are subject to other land uses such as urban development...
Resource Type:: Masters Thesis
Full Text:: processes not yet understood (Falk, 1991; Falk and Olwell, 1992; Reid, 1992; Grumbine, 1994; Noss, 1996

An experimental reintroduction of Pleuropogon oregonus, a rare wetland grass native to Oregon

Creator:: Groberg, Matthew G.
Abstract:: Pleuropogon oregonus Chase is a rare wetland grass endemic to eastern Oregon. The species is composed of two widely separated populations, one in Lake County and one in Union County. In order to reduce the risk of extinction, the Oregon Department of Agriculture Native Plant Conservation Program initiated several reintroduction...
Resource Type:: Masters Thesis
Full Text:: Pleuropogon oregonus, a Rare Wetland Grass Native to Oregon. Abstract approved: Robert J

The genus Anthracobia Boudier (Pezizales, Ascomycetes)

Creator:: Larsen, Harold J.
Abstract:: A taxonomic revision of the genus Anthracobia Boudier is presented. The genus and eight included taxa are described and figured. A discussion of the taxonomic criteria used to delimit the genus and the species is included, and a key to the recognized taxa is given. Four imperfect states for included...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Harold J. Larsen, Jr. for the

Characterization of pectic enzymes produced by Fusarium oxysporum f. lycopersici

Creator:: Young, Robert J.
Resource Type:: Dissertation
Full Text:: oxysporum F. lycopersici AN ABSTRACT OF THE THESIS OF ROBERT J. YOUNG for the Ph. D. in Plant Pathology

Candidate Genes Associated with Blister Rust Resistance in Whitebark Pine (Pinus albicaulis) Revealed through de novo Transcriptome Assembly and Differential Gene Expression Analysis

Creator:: Bair, Zolton J.
Abstract:: Whitebark pine (Pinus albicaulis) is an iconic North American high-elevation tree species currently threatened by climate change, mountain pine beetle, and white pine blister rust (WPBR), a lethal disease caused by the non-native fungal pathogen Cronartium ribicola. In collaboration with the USDA Forest Service Dorena Genetic Resource Center, germplasm was...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Zolton J. Bair for the degree of Doctor of Philosophy

Global net community production and the putative net heterotrophy of the oligotrophic oceans

Creator:: Westberry, Toby K., Williams, Peter J. le B., and Behrenfeld, Michael J.
Abstract:: Reconciling rates of organic carbon export from the euphotic zone with the consumption of organic material in the dark ocean remains one of the major quantitative uncertainties of the ocean carbon cycle. Euphotic zone net community production (NCP) provides one broad constraint on export flux and potential carbon drawdown. However,...
Resource Type:: Article
Full Text:: putative net heterotrophy of the oligotrophic oceans Toby K. Westberry,1 Peter J. le B. Williams,2 and

Genome Organization in the Ectomycorrhizal Truffle Rhizopogon vesiculosus

Creator:: Lu, Dabao Sun
Abstract:: Rhizopogon vesiculosus is a common ectomycorrhizal (EM) symbiont of Pseudotusga menziesii (Douglas-fir) in the coast range of the Pacific Northwest. The species has been studied for its systematics, genet size, population structure, and competitive ability in several field and experimental studies. This thesis seeks to provide a more thorough characterization...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

A revision of Juncus subgenus genuini (Juncaceae) in the Pacific states

Morphology, ultrastructure and mating of sporidia of a wheat-bunt fungus, Tilletia caries (DC.) Tul.

Development of Computational, Visualization, and Molecular Tools for Fungal and Oomycete Community Ecology

Conservation biology of Perideridia erythrorhiza (Apiaceae) : experimental reintroduction and life history

An experimental reintroduction of Pleuropogon oregonus, a rare wetland grass native to Oregon

The genus Anthracobia Boudier (Pezizales, Ascomycetes)

Characterization of pectic enzymes produced by Fusarium oxysporum f. lycopersici

Candidate Genes Associated with Blister Rust Resistance in Whitebark Pine (Pinus albicaulis) Revealed through de novo Transcriptome Assembly and Differential Gene Expression Analysis

Global net community production and the putative net heterotrophy of the oligotrophic oceans

Genome Organization in the Ectomycorrhizal Truffle Rhizopogon vesiculosus

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