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Incompatibility reactions and nuclear condition of three Phellinus species

Creator:: Hennon, Paul E.
Abstract:: Phellinus arctostaphyli (Long) Niemela, P. igniarius (L. ex Fr.) Quel., and P. tremulae (Bond.) Bond. et Boriss., heartrotting hymenomycetes in the family Hymenochaetaceae (Aphyllophorales), all conform to a multi-allelic heterothallic mating system. Both compatible and incompatible reactions result from pairings of homokaryons from the same basidiocarp. Homokaryons isolated from different...
Resource Type:: Masters Thesis
Full Text:: Incompatibility reactions and nuclear condition of three

Systematics of the genus Rhizopogon inferred from nuclear ribosomal DNA large subunit and internal transcribed spacer sequences

Creator:: Grubisha, Lisa C.
Abstract:: Rhizopogon is a hypogeous fungal genus that forms ectomycorrhizae with genera of the Pinaceae. The greatest number and species of Rhizopogon are found in coniferous forests of the Pacific Northwestern United States, where members of the Pinaceae are also concentrated. Rhizopogon spp. are host-specific primarily with Pinus spp. and Pseudotsuga...
Resource Type:: Masters Thesis
Full Text:: Systematics of the genus Rhizopogon inferred from nuclear

Influence of site, soil, and inoculum density on dwarf bunt (Tilletia controversa Kühn) of winter wheat

Creator:: Clark, Deborah Ann, 1954-
Abstract:: Field microplot studies conducted over two seasons (1982-1984) evaluated the influence of four physically and chemically diverse soils collected from Pacific Northwest wheat fields on the incidence of dwarf bunt of winter wheat caused by Tilletia controversa Kuhn. These soils were placed at Flora and Pendleton, Oregon to determine the...
Resource Type:: Masters Thesis
Full Text:: Trione, 1967; Singh and Trione, 1969; Trione, 1974) enab- ling closer observation of all nuclear phases

Growth properties of induced mutants of the common wheat-bunt fungus, Tilletia caries, in axenic culture and in planta

Creator:: Churchill, Alice Cynthia Louise
Abstract:: Genetic studies of Tilletia spp. have been hampered by the lack of genetic markers. The work discussed here is a first report of the isolation of genetically marked strains of J. caries and their use in wheat plant infection studies. Procedures for the isolation of auxotrophic and drug-resistant mutants in...
Resource Type:: Masters Thesis
Full Text:: strains of T. caries were developed. Preliminary determination of the nuclear condition of secondary

The influence of host nutrition on the development of xiphinema americanum

Creator:: Nigh, Edward L.
Resource Type:: Dissertation
Full Text:: Methods arid Materials Results 13 19 THE INFLUENCE OF OSMOTIC CONCENTRATION ON THE HATCHING PROCESS

The growth of wild-type and genetically-marked strains of Tilletia caries and T. controversa in susceptible and resistant wheat cultivars

Creator:: Trail, Frances
Abstract:: The objective of this study was to provide basic information on the interaction of the bunt fungi Tilletia caries and T. controversa with their host, Triticum aestivum. Studies on the ability of haploid strains to colonize wheat heads provided the basis for experiments in which haploid strains were crossed in...
Resource Type:: Masters Thesis
Full Text:: I. INTRODUCTION 1 II. MATERIALS AND METHODS Origin of wheat plants Origin of T. caries and T

Studies on the etiology and epidemiology of bull's eye rot of pears

Creator:: Henriquez, Jose Luis, 1961-
Abstract:: The objective of this dissertation is to introduce low-cost processing methods for the fabrication of ZnO transparent thin-film transistors (TTFTs). A novel method for depositing ZnO body layers via spin-coating of a zinc nitrate-based spin solution is presented. The processing conditions of spin-coated ZnO are optimized to produce continuous and...
Resource Type:: Dissertation
Full Text:: Introduction 26 2.3 Materials and methods 30 2.3.1 Collection and storage of isolates 30 2.3.2 Sampling of

Bionomics of the clover cyst nematode, Heterodera trifolii (Goffart, 1932) Oostenbrink, 1939 (Nematoda: Heteroderidae)

Creator:: Sen, Arun Kumar
Resource Type:: Masters Thesis
Full Text:: included with the shipment of bulbs, tubers, roots, and other market or propagation materials. Recent

Systematics of the genus Torrubiella

Creator:: Johnson, Desiree M.
Abstract:: Torrubiella is a genus of entomopathogenic fungi in the Clavicipitaceae (Ascomycota). Species of the genus produce superficial perithecia on a loose mat of hyphae that forms directly on the host. The genus is estimated to contain about 70 species. Torrubiella is hypothesized to be a close relative of Cordyceps because...
Resource Type:: Masters Thesis
Full Text:: Redacted for privacy AN ABSTRACT OF THE THESIS OF Desiree

Phylogenetics and genomic patterns of speciation in Pinus with an empahsis on subgenus Strobus

Creator:: Syring, John V.
Abstract:: Data from nuclear ribosomal internal transcribed spacer regions (nrITS) and chloroplast DNA (cpDNA) have failed to resolve phylogenetic relationships in Pinus. To provide greater interspecific resolution, five low-copy nuclear genes were developed from mapped conifer anchor loci. Four genes were sequenced from species representing all Pinus subsections. Individual loci do...
Resource Type:: Dissertation
Full Text:: ) subsections inferred from multiple low-copy nuclear loci. American Journal of Botany 92:2086-2 100. Tomback

ScholarsArchive@OSU

Incompatibility reactions and nuclear condition of three Phellinus species

Systematics of the genus Rhizopogon inferred from nuclear ribosomal DNA large subunit and internal transcribed spacer sequences

Influence of site, soil, and inoculum density on dwarf bunt (Tilletia controversa Kühn) of winter wheat

Growth properties of induced mutants of the common wheat-bunt fungus, Tilletia caries, in axenic culture and in planta

The influence of host nutrition on the development of xiphinema americanum

The growth of wild-type and genetically-marked strains of Tilletia caries and T. controversa in susceptible and resistant wheat cultivars

Studies on the etiology and epidemiology of bull's eye rot of pears

Bionomics of the clover cyst nematode, Heterodera trifolii (Goffart, 1932) Oostenbrink, 1939 (Nematoda: Heteroderidae)

Systematics of the genus Torrubiella

Phylogenetics and genomic patterns of speciation in Pinus with an empahsis on subgenus Strobus

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