Index Catalog // ScholarsArchive@OSU

Epidemiology and population biology of Inonotus tomentosus as a pathogen of forests of British Columbia

Creator:: Lewis, Katherine JoAnn
Abstract:: The root disease fungus Inonotus tomentosus, common in the old growth boreal forests of British Columbia, poses a threat to the health of second growth forests established on sites with a previous history of root disease. Colonized stumps occur in groups of 1 to 6; the groups are clumped within...
Resource Type:: Dissertation
Full Text:: tomentosus as a pathogen of forests of British Columbia AN ABSTRACT OF THE THESIS OF Katherine JoAnn Lewis

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:: : ______________________________________________________ Jeffrey K. Stone The fungus Nothophaeocryptopus gaeumannii is the causative agent of

Plant-Pollinator Interactions in a Changing World: Cryptic Specialization, Pollinator Movement, and Landscape Genetics of Pollinator-Dependent Plants

Creator:: Gannon, Dustin G.
Abstract:: Plant-pollinator mutualisms are one of the most prevalent and economically important mutualisms in nature. Like many other ecological systems, plant-pollinator communities are threatened by anthropogenic activity, both directly (e.g., habitat conversion and fragmentation) and indirectly (e.g., climate change). While we are aware of many of the activities that adversely impact...
Resource Type:: Dissertation
Full Text:: number of pairwise comparisons. Average bill or flower lengths (x̄ mm) and curvatures (k̄ mm−1) (see

Role of GacSA Two-component System and Bacterial Surface Attachment in Pseudomonas syringae Virulence

Creator:: O'Malley, Megan R.
Abstract:: Pseudomonas syringae are plant pathogenic bacteria that cause disease by rapidly multiplying within the aboveground tissues of host plants. Growth of P. syringae within plant host tissues requires the disarmament of host immune defenses that limit microbial growth. To combat host defenses, P. syringae deploys a type III secretion system...
Resource Type:: Dissertation
Full Text:: plant innate immunity. Nat Rev Mol Cell Biol 7, 601–611. 23. Xin, X.F.; Nomura, K.; Aung, K

Development of the storage organ of Brassica campestris L.

Creator:: Larson, Ann Marie
Abstract:: Developmental changes in the storage organ of Brassica campestris L. were followed from the organization of the embryonic radicle and hypocotyl to the mature storage organ. Three independent primary meristems gave rise to the cortex, the stele, and the root cap-epidermis. The primary development is typical of the Cruciferae. Cambial...
Resource Type:: Dissertation
Full Text:: by Katherine Esau (1965). There have been numerous studies of mem- bers of the Cruciferae. Hayward

The use of flowering crab apples for the detection of latent viruses in apples

Creator:: Reynolds, James Edward
Abstract:: Recent investigations indicate that several latent viruses of apples exist in common commercial apple stocks, but these viruses and their relationships are incompletely understood. This thesis describes investigations of crab apples as indicators of latent viruses of apples. Eighty-eight varieties and species of crab apples were tested as indicators of...
Resource Type:: Dissertation
Full Text:: . 5. M. ionerxir (Wood) Britton f. fimbriata Slavin 6. Katherine 7. lv[. zumi Rehd. ex Sargent var

Anatomical studies of Pinus ponderosa Laws : infested by Elytroderma deformans (Weir) Darker

Creator:: Wirtz, Felicia Pietrykowski
Abstract:: Pine needle blight of Pinus ponderosa Laws. caused by Elytroderma deformans (Weir) Darker is recognized by changes in the needles, in the bark and in the development of the branches. Anatomical studies of the host-parasite relation have been made previously on young pine tissue up to four years of age...
Resource Type:: Dissertation

Insights into Novel Non-Fumigant Nematicides: Physiological and Cellular Responses of Meloidogyne Incognita and Other Plant-Parasitic Nematodes

Creator:: Wram, Catherine L.
Abstract:: Plant-parasitic nematodes (PPN) pose a severe threat to crop production with the economic losses due to nematode parasitism in excessive of US$ 80 billion each year. Meloidogyne incognita, a globally distributed pest with a diverse host range, contributes significantly to this economic loss. The most reliable way to manage PPN...
Resource Type:: Dissertation
Full Text:: who made my graduate school journey possible. Michelle Moyer, Katherine East, Bernie Gagnier, and

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:: Chapter 2, Dr. Katherine B. Louie extracted the metabolites and conducted the mass spectrometry analysis

Ecological thresholds, climate extremes, and tree species' distributions across the Pacific coastal United States

Creator:: Lintz, Heather E.
Abstract:: Species' distributions across the landscape are perhaps the least understood yet most conspicuous features of life on earth. Ecologists have long studied species' distributions; yet, many questions remain about why species occur where they do. Such questions persist largely because species' distributions are complex systems with challenging properties like non-linearity,...
Resource Type:: Dissertation
Full Text:: Heather E. Lintz, Bruce McCune, Andrew N. Gray, Katherine A. McCulloh

ScholarsArchive@OSU

Epidemiology and population biology of Inonotus tomentosus as a pathogen of forests of British Columbia

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

Plant-Pollinator Interactions in a Changing World: Cryptic Specialization, Pollinator Movement, and Landscape Genetics of Pollinator-Dependent Plants

Role of GacSA Two-component System and Bacterial Surface Attachment in Pseudomonas syringae Virulence

Development of the storage organ of Brassica campestris L.

The use of flowering crab apples for the detection of latent viruses in apples

Anatomical studies of Pinus ponderosa Laws : infested by Elytroderma deformans (Weir) Darker

Insights into Novel Non-Fumigant Nematicides: Physiological and Cellular Responses of Meloidogyne Incognita and Other Plant-Parasitic Nematodes

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

Ecological thresholds, climate extremes, and tree species' distributions across the Pacific coastal United States

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