Index Catalog // ScholarsArchive@OSU

Effectiveness of Vehicle Washing and Roadside Sanitation in Decreasing Spread Potential of Port-Orford-Cedar Root Disease

Creator:: Goheen, Donald J., Mallams, Katrina, Betlejewski, Frank, and Hansen, Everett
Abstract:: Two techniques widely recommended for managing Port-Orford-cedar root disease (caused by the introduced pathogen Phytophthora lateralis) are vehicle washing and roadside sanitation. However, their effectiveness has never been tested using a sample-based approach. Vehicle washing effectiveness was evaluated using Port-Orford-cedar seedling baits and a double-washing method. Washing with water can...
Resource Type:: Article
Full Text:: Betlejewski, and Everett Hansen Two techniques widely recommended for managing Port-Orford-cedar root disease

Phytophthora borealis and Phytophthora riparia, new species in Phytophthora ITS Clade 6

Creator:: Hansen, Everett M., Reeser, Paul W., and Sutton, Wendy
Abstract:: Phytophthora borealis and Phytophthora riparia, identified in recent Phytophthora surveys of forest streams in Oregon, California and Alaska, are described as new species in Phytophthora ITS Glade 6. They are similar in growth form and morphology to P. gonapodyides and are predominately sterile. They present unique DNA sequences, however, and...
Resource Type:: Article
Full Text:: (Hansen 2007) have triggered systematic sampling in forests and streams for early detection of the

Phylogenetic placement of the ectomycorrhizal genus Cenococcum in Gloniaceae (Dothideomycetes)

Creator:: Spatafora, Joseph W., Owensby, C. Alisha, Douhan, Greg W., Boehm, Eric W. A., and Schoch, Conrad L.
Abstract:: Cenococcum is a genus of ectomycorrhizal Ascomycota that has a broad host range and geographic distribution. It is not known to produce either meiotic or mitotic spores and is known to exist only in the form of hyphae, sclerotia and host-colonized ectomycorrhizal root tips. Due to its lack of sexual...
Resource Type:: Article
Full Text:: Pathology and Microbiology, University of California, Riverside, California 92521 Eric W.A. Boehm

Phytophthora ramorum colonizes tanoak xylem and is associated with reduced stem water transport

Creator:: Parke, J. L., Oh, E., Voelker, S., Hansen, E. M., Buckles, G., and Lachenbruch, Barbara
Abstract:: Isolation, detection with diagnostic polymerase chain reaction (PCR), and microscopy demonstrated the presence of Phytophthora ramorum in the sapwood of mature, naturally infected tanoak (Lithocarpus densiflorus) trees. The pathogen was strongly associated with discolored sapwood (P < 0.001), and was recovered or detected from 83% of discolored sapwood tissue samples....
Resource Type:: Article
Full Text:: Associated with Reduced Stem Water Transport J. L. Parke, E. Oh, S. Voelker, E. M. Hansen, G. Buckles, and

SNP-Based Differentiation of Phytophthora infestans Clonal Lineages Using Locked Nucleic Acid Probes and High-Resolution Melt Analysis

Creator:: Hansen, Zachariah R., Knaus, Brian J., Tabima, Javier F., Press, Caroline M., Judelson, Howard S., Grünwald, Niklaus J., and Smart, Christine D.
Abstract:: Phytophthora infestans, the cause of the devastating late blight disease of potato and tomato, exhibits a clonal reproductive lifestyle in North America. Phenotypes such as fungicide sensitivity and host preference are conserved among individuals within clonal lineages, while substantial phenotypic differences can exist between lineages. Whole P. infestans genomes were...
Resource Type:: Article
Full Text:: Zachariah R. Hansen, Plant Pathology and Plant-Microbe Biology Section, School of Integrative Plant Science

Evolving while invading: rapid adaptive evolution in juvenile development time for a biological control organism colonizing a high-elevation environment

Creator:: McEvoy, Peter B., Higgs, Kimberley M., Coombs, Eric M., Karacetin, Evrim, and Starcevich, Leigh Ann
Abstract:: We report evidence of adaptive evolution in juvenile development time on a decadal timescale for the cinnabar moth Tyria jacobaeae (Lepidoptera: Arctiidae) colonizing new habitats and hosts from the Willamette Valley to the Coast Range and Cascades Mountains in Oregon. Four lines of evidence reveal shorter egg to pupa juvenile...
Resource Type:: Article
Full Text:: organism colonizing a high-elevation environment Peter B. McEvoy,1 Kimberley M. Higgs,1 Eric M. Coombs,2

Comparative analyses reveal potential uses of Brachypodium distachyon as a model for cold stress responses in temperate grasses

Creator:: Li, Chuan, Rudi, Heidi, Stockinger, Eric J., Cheng, Hongmei, Cao, Moju, Fox, Samuel E., Mockler, Todd C., Westereng, Bjorge, Fjellheim, Siri, Robnli, Odd Arne, and Sandve, Simen R.
Abstract:: Background: Little is known about the potential of Brachypodium distachyon as a model for low temperature stress responses in Pooideae. The ice recrystallization inhibition protein (IRIP) genes, fructosyltransferase (FST) genes, and many C-repeat binding factor (CBF) genes are Pooideae specific and important in low temperature responses. Here we used comparative...
Resource Type:: Article
Full Text:: grasses Chuan Li1,2, Heidi Rudi2, Eric J Stockinger3, Hongmei Cheng4, Moju Cao1*, Samuel E Fox5, Todd C

Phytophthora obscura sp nov., a new species of the novel Phytophthora subclade 8d

Creator:: Gruenwald, N. J., Werres, S., Goss, E. M., Taylor, C. R., and Fieland, V. J.
Abstract:: A new Phytophthora species was detected (i) in the USA, infecting foliage of Kalmia latifolia, (ii) in substrate underneath Pieris, and (iii) in Germany in soil samples underneath Aesculus hippocastanum showing disease symptoms. The new species Phytophthora obscura sp. nov. is formally named based on phylogenetic analysis, host range, Kochs...
Resource Type:: Article
Full Text:: subclade 8d N. J. Grünwalda*, S. Werresb, E. M. Gossa†, C. R. Taylorc and V. J. Fielandc aHorticultural

Plant traits – a tool for restoration?

Creator:: Clark, Deborah Louise, 1950-, Wilson, Mark V., Roberts, Rachel, Dunwiddie, Peter W., Stanley, Amanda, and Kaye, Thomas N.
Abstract:: Question: Most results of restoration efforts are species-specific and/or site-specific and therefore are not general enough to be easily applied to other species and other sites. Our research addresses the issue of species-specific results by investigating the feasibility of using plant traits instead of taxonomic species to characterize species responses...
Resource Type:: Article
Full Text:: 18 Gilbert, Eric Delvin, Carri Marschner, Birdie Davenport, Dave Hays, David Wilderman, Lynda

Ca. Nitrososphaera and Bradyrhizobium are inversely correlated and related to agricultural practices in long-term field experiments

Creator:: Zhalnina, Kateryna, de Quadros, Patricia D., Gano, Kelsey A., Davis-Richardson, Austin, Fagen, Jennie R., Brown, Christopher T., Giongo, Adriana, Drew, Jennifer C., Sayavedra-Soto, Luis A., Arp, Daniel J., Camargo, Flavio A. O., Daroub, Samira H., Clark, Ian M., McGrath, Steve P., Hirsch, Penny R., and Triplett, Eric W.
Abstract:: Agricultural land management, such as fertilization, liming, and tillage affects soil properties, including pH, organic matter content, nitrification rates, and the microbial community. Three different study sites were used to identify microorganisms that correlate with agricultural land use and to determine which factors regulate the relative abundance of the microbial...
Resource Type:: Article
Full Text:: 2, Samira H. Daroub4, Ian M. Clark5, Steve P. McGrath5, Penny R. Hirsch5 and Eric W. Triplett 1* 1

ScholarsArchive@OSU

Effectiveness of Vehicle Washing and Roadside Sanitation in Decreasing Spread Potential of Port-Orford-Cedar Root Disease

Phytophthora borealis and Phytophthora riparia, new species in Phytophthora ITS Clade 6

Phylogenetic placement of the ectomycorrhizal genus Cenococcum in Gloniaceae (Dothideomycetes)

Phytophthora ramorum colonizes tanoak xylem and is associated with reduced stem water transport

SNP-Based Differentiation of Phytophthora infestans Clonal Lineages Using Locked Nucleic Acid Probes and High-Resolution Melt Analysis

Evolving while invading: rapid adaptive evolution in juvenile development time for a biological control organism colonizing a high-elevation environment

Comparative analyses reveal potential uses of Brachypodium distachyon as a model for cold stress responses in temperate grasses

Phytophthora obscura sp nov., a new species of the novel Phytophthora subclade 8d

Plant traits – a tool for restoration?

Ca. Nitrososphaera and Bradyrhizobium are inversely correlated and related to agricultural practices in long-term field experiments

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