Index Catalog // ScholarsArchive@OSU

Meta-Analysis Reveals a Critical Period for Management of Powdery Mildew on Hop Cones

Creator:: Nelson, Mark E., Gent, David H., and Grove, Gary G.
Abstract:: Results of 28 field trials conducted over a 12-year period investigating management of hop powdery mildew caused by Podosphaera macularis were quantitatively summarized by meta-analysis to compare product efficacy and use patterns by mode of action as defined by Fungicide Resistance Action Committee (FRAC) groups. Availability of original observations enabled...
Resource Type:: Article
Full Text:: Meta-Analysis Reveals a Critical Period for Management of

Concepts of Sustainability, Motivations for Pest Management Approaches, and Implications for Communicating Change

Creator:: Sherman, Jennifer and Gent, David H.
Abstract:: Impact and relevance are valued by both plant pathologists and the supporters of research and extension. Impact has been characterized as the “So what?” of research results, and in applied research in agriculture typically involves some change in human behavior. This might involve, for instance, avoidance of broad spectrum pesticides,...
Resource Type:: Article
Full Text:: , for instance, avoidance of broad spectrum pesticides, use of economic thresholds, or adoption of a

Comparative Genomics of Plant-Associated Pseudomonas spp.: Insights into Diversity and Inheritance of Traits Involved in Multitrophic Interactions

Creator:: Loper, Joyce E., Hassan, Karl A., Mavrodi, Dmitri V., Davis, Edward W., II, Lim, Chee Kent, Shaffer, Brenda T., Elbourne, Liam D. H., Stockwell, Virginia O., Hartney, Sierra L., Breakwell, Katy, Henkels, Marcella D., Tetu, Sasha G., Rangel, Lorena I., Kidarsa, Teresa A., Wilson, Neil L., van de Mortel, Judith E., Song, Chunxu, Blumhagen, Rachel, Radune, Diana, Hostetler, Jessica B., Brinkac, Lauren M., Durkin, A. Scott, Kluepfel, Daniel A., Wechter, W. Patrick, Anderson, Anne J., Kim, Young Cheol, Pierson, Leland S., III, Pierson, Elizabeth A., Lindow, Steven E., Kobayashi, Donald Y., Raaijmakers, Jos M., Weller, David M., Thomashow, Linda S., Allen, Andrew E., and Paulsen, Ian T.
Abstract:: We provide here a comparative genome analysis of ten strains within the Pseudomonas fluorescens group including seven new genomic sequences. These strains exhibit a diverse spectrum of traits involved in biological control and other multitrophic interactions with plants, microbes, and insects. Multilocus sequence analysis placed the strains in three sub-clades,...
Resource Type:: Article
Full Text:: Joyce E. Loper1,2*, Karl A. Hassan3, Dmitri V. Mavrodi4, Edward W. Davis II1, Chee Kent Lim3, Brenda T

Comparative Genomics of Plant-Associated Pseudomonas spp.: Insights into Diversity and Inheritance of Traits Involved in Multitrophic Interactions

Creator:: Loper, Joyce E., Hassan, Karl A., Mavrodi, Dmitri V., Davis, Edward W., II, Lim, Chee Kent, Shaffer, Brenda T., Elbourne, Liam D. H., Stockwell, Virginia O., Hartney, Sierra L., Breakwell, Katy, Henkels, Marcella D., Tetu, Sasha G., Rangel, Lorena I., Kidarsa, Teresa A., Wilson, Neil L., van de Mortel, Judith E., Song, Chunxu, Blumhagen, Rachel, Radune, Diana, Hostetler, Jessica B., Brinkac, Lauren M., Durkin, A. Scott, Kluepfel, Daniel A., Wechter, W. Patrick, Anderson, Anne J., Kim, Young Cheol, Pierson, Leland S., III, Pierson, Elizabeth A., Lindow, Steven E., Kobayashi, Donald Y., Raaijmakers, Jos M., Weller, David M., Thomashow, Linda S., Allen, Andrew E., and Paulsen, Ian T.
Abstract:: We provide here a comparative genome analysis of ten strains within the Pseudomonas fluorescens group including seven new genomic sequences. These strains exhibit a diverse spectrum of traits involved in biological control and other multitrophic interactions with plants, microbes, and insects. Multilocus sequence analysis placed the strains in three sub-clades,...
Resource Type:: Article
Full Text:: Joyce E. Loper1,2*, Karl A. Hassan3, Dmitri V. Mavrodi4, Edward W. Davis II1, Chee Kent Lim3, Brenda T

Infection of Brachypodium distachyon by Formae Speciales of Puccinia graminis: Early Infection Events and Host-Pathogen Incompatibility

Creator:: Figueroa, Melania, Alderman, Stephen, Garvin, David F., and Pfender, William F.
Abstract:: Puccinia graminis causes stem rust, a serious disease of cereals and forage grasses. Important formae speciales of P. graminis and their typical hosts are P. graminis f. sp. tritici (Pg-tr) in wheat and barley, P. graminis f. sp. lolii (Pg-lo) in perennial ryegrass and tall fescue, and P. graminis f....
Resource Type:: Article
Full Text:: , Stephen Alderman1, David F. Garvin2, William F. Pfender1,3* 1 Forage Seed and Cereal Research Unit

Pre- and Postinfection Activity of Fungicides in Control of Hop Downy Mildew

Creator:: Gent, David H., Twomey, Megan C., Wolfenbarger, Sierra N., and Woods, Joanna L.
Abstract:: Optimum timing and use of fungicides for disease control are improved by an understanding of the characteristics of fungicide physical mode of action. Greenhouse and field experiments were conducted to quantify and model the duration of pre- and postinfection activity of fungicides most commonly used for control of hop downy...
Resource Type:: Article

Identification of Genetic Variation between Obligate Plant Pathogens Pseudoperonospora cubensis and P-humuli Using RNA Sequencing and Genotyping-By-Sequencing

Creator:: Summers, Carly F., Gulliford, Colwyn M., Carlson, Craig H., Lillis, Jacquelyn A., Carlson, Maryn O., Cadle-Davidson, Lance, Gent, David H., and Smart, Christine D.
Abstract:: RNA sequencing (RNA-seq) and genotyping-by-sequencing (GBS) were used for single nucleotide polymorphism (SNP) identification from two economically important obligate plant pathogens, Pseudoperonospora cubensis and P. humuli. Twenty isolates of P. cubensis and 19 isolates of P. humuli were genotyped using RNA-seq and GBS. Principle components analysis (PCA) of each data...
Resource Type:: Article
Full Text:: ., Lillis, J. A., Carlson, M. O., Cadle-Davidson, L., ... & Smart, C. D. (2015). Identification of Genetic

Analysis of Genome Sequences from Plant Pathogenic Rhodococcus Reveals Genetic Novelties in Virulence Loci

Creator:: Creason, Allison L., Vandeputte, Olivier M., Savory, Elizabeth A., Davis, Edward W., II, Putnam, Melodie L., Hu, Erdong, Swader-Hines, David, Mol, Adeline, Baucher, Marie, Prinsen, Els, Zdanowska, Magdalena, Givan, Scott A., El Jaziri, Mondher, Loper, Joyce E., Mahmud, Taifo, and Chang, Jeff H.
Abstract:: Members of Gram-positive Actinobacteria cause economically important diseases to plants. Within the Rhodococcus genus, some members can cause growth deformities and persist as pathogens on a wide range of host plants. The current model predicts that phytopathogenic isolates require a cluster of three loci present on a linear plasmid, with...
Resource Type:: Article

Distribution and Characterization of Podosphaera macularis Virulent on Hop Cultivars Possessing R6-Based Resistance to Powdery Mildew

Creator:: Wolfenbarger, Sierra N., Massie, Stephen T., Ocamb, Cynthia, Eck, Emily B., Grove, Gary G., Nelson, Mark E., Probst, Claudia, Twomey, Megan C., and Gent, David H.
Abstract:: Host resistance, both quantitative and qualitative, is the preferred long-term approach for disease management in many pathosystems, including powdery mildew of hop (Podosphaera macularis). In 2012, an epidemic of powdery mildew occurred in Washington and Idaho on previously resistant cultivars whose resistance was putatively based on the gene designated R6....
Resource Type:: Article

Quantitative Trait Loci Associated with the Tocochromanol (Vitamin E) Pathway in Barley

Creator:: Graebner, Ryan C., Wise, Mitchell, Cuesta-Marcos, Alfonso, Geniza, Matthew, Blake, Tom, Blake, Victoria C., Butler, Joshua, Chao, Shiaoman, Hole, David J., Horsley, Rich, Jaiswal, Pankaj, Obert, Don, Smith, Kevin P., Ullrich, Steven, and Hayes, Patrick M.
Abstract:: The Genome-Wide Association Studies approach was used to detect Quantitative Trait Loci associated with tocochromanol concentrations using a panel of 1,466 barley accessions. All major tocochromanol types- α-, β-, δ-, γ-tocopherol and tocotrienol- were assayed. We found 13 single nucleotide polymorphisms associated with the concentration of one or more of...
Resource Type:: Article
Full Text:: E) Pathway in Barley Graebner, R. C., Wise, M., Cuesta-Marcos, A., Geniza, M., Blake, T., Blake, V

ScholarsArchive@OSU

Meta-Analysis Reveals a Critical Period for Management of Powdery Mildew on Hop Cones

Concepts of Sustainability, Motivations for Pest Management Approaches, and Implications for Communicating Change

Comparative Genomics of Plant-Associated Pseudomonas spp.: Insights into Diversity and Inheritance of Traits Involved in Multitrophic Interactions

Comparative Genomics of Plant-Associated Pseudomonas spp.: Insights into Diversity and Inheritance of Traits Involved in Multitrophic Interactions

Infection of Brachypodium distachyon by Formae Speciales of Puccinia graminis: Early Infection Events and Host-Pathogen Incompatibility

Pre- and Postinfection Activity of Fungicides in Control of Hop Downy Mildew

Identification of Genetic Variation between Obligate Plant Pathogens Pseudoperonospora cubensis and P-humuli Using RNA Sequencing and Genotyping-By-Sequencing

Analysis of Genome Sequences from Plant Pathogenic Rhodococcus Reveals Genetic Novelties in Virulence Loci

Distribution and Characterization of Podosphaera macularis Virulent on Hop Cultivars Possessing R6-Based Resistance to Powdery Mildew

Quantitative Trait Loci Associated with the Tocochromanol (Vitamin E) Pathway in Barley

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