Index Catalog // ScholarsArchive@OSU

Fire and Grazing Influence Site Resistance to Bromus tectorum Through Their Effects on Shrub, Bunchgrass and Biocrust Communities in the Great Basin (USA)

Creator:: Condon, Lea A. and Pyke, David A.
Abstract:: Shrubs, bunchgrasses and biological soil crusts (biocrusts) are believed to contribute to site resistance to plant invasions in the presence of cattle grazing. Although fire is a concomitant disturbance with grazing, little is known regarding their combined impacts on invasion resistance. We are the first to date to test the...
Resource Type:: Article
Full Text:: on Shrub, Bunchgrass and Biocrust Communities in the Great Basin (USA) Lea A. Condon1,2* and David

Burial increases seed longevity of two Artemisia tridentata (Asteraceae) subspecies

Creator:: Wijayratne, Upekala C. and Pyke, David A.
Abstract:: • Premise of the study: Seed longevity and persistence in soil seed banks may be especially important for population persistence in ecosystems where opportunities for seedling establishment and disturbance are unpredictable. The fire regime, an important driver of population dynamics in sagebrush steppe ecosystems, has been altered by exotic annual...
Resource Type:: Article
Full Text:: . WIJAYRATNE 2,3,4 AND DAVID A. PYKE 2 2 U.S. Geological Survey, Forest and

Annual cycles of ecological disturbance and recovery underlying the subarctic Atlantic spring plankton bloom

Creator:: Behrenfeld, Michael J., Doney, Scott C., Lima, Ivan, Boss, Emmanuel S., and Siegel, David A.
Abstract:: Satellite measurements allow global assessments of phytoplankton concentrations and, from observed temporal changes in biomass, direct access to net biomass accumulation rates (r). For the subarctic Atlantic basin, analysis of annual cycles in r reveals that initiation of the annual blooming phase does not occur in spring after stratification surpasses...
Resource Type:: Article
Full Text:: Ivan Lima,2 Emmanuel S. Boss,3 and David A. Siegel 4 Received 27 November 2012; revised 1 April 2013

Population Density and Phenology of Tetranychus urticae (Acari: Tetranychidae) in Hop is Linked to the Timing of Sulfur Applications

Creator:: Woods, J. L., Dreves, A. J., Fisher, Glenn C., James, David G., Wright, Larry C., and Gent, D. H.
Abstract:: The twospotted spider mite, Tetranychus urticae Koch, is a worldwide pest of numerous agronomic and horticultural plants. Sulfur fungicides are known to induce outbreaks of this pest on several crops, although mechanisms associated with sulfur-induced mite outbreaks are largely unknown. Studies were conducted during 2007–2009 in Oregon and Washington hop...
Resource Type:: Article
Full Text:: urticae (Acari: Tetranychidae) in Hop is Linked to the Timing of Sulfur Applications J. L. WOODS,1 A. J

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

Reconciling Conflicting Phylogenies in the Origin of Sweet Potato and Dispersal to Polynesia

Creator:: Muñoz-Rodríguez, Pablo, Carruthers, Tom, Wood, John R.I., Williams, Bethany R.M., Weitemier, Kevin, Kronmiller, Brent, Ellis, David, Anglin, Noelle L., Longway, Lucas, Harris, Stephen A., Rausher, Mark D., Kelly, Steven, Liston, Aaron, and Scotland, Robert W.
Abstract:: The sweet potato is one of the world’s most widely consumed crops, yet its evolutionary history is poorly understood. In this paper, we present a comprehensive phylogenetic study of all species closely related to the sweet potato and address several questions pertaining to the sweet potato that remained unanswered. Our...
Resource Type:: Article
Full Text:: -Rodríguez, Tom Carruthers, John R.I. Wood, Bethany R.M. Williams, Kevin Weitemier, Brent Kronmiller, David

Variable Suites of Non-effector Genes Are Co-regulated in the Type III Secretion Virulence Regulon across the Pseudomonas syringae Phylogeny

Creator:: Mucyn, Tatiana S., Yourstone, Scott, Lind, Abigail L., Biswas, Surojit, Nishimura, Marc T., Baltrus, David A., Cumbie, Jason S., Chang, Jeff H., Jones, Corbin D., Dangl, Jeffery L., and Grant, Sarah R.
Abstract:: Pseudomonas syringae is a phylogenetically diverse species of Gram-negative bacterial plant pathogens responsible for crop diseases around the world. The HrpL sigma factor drives expression of the major P. syringae virulence regulon. HrpL controls expression of the genes encoding the structural and functional components of the type III secretion system...
Resource Type:: Article

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

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

ScholarsArchive@OSU

Fire and Grazing Influence Site Resistance to Bromus tectorum Through Their Effects on Shrub, Bunchgrass and Biocrust Communities in the Great Basin (USA)

Burial increases seed longevity of two Artemisia tridentata (Asteraceae) subspecies

Annual cycles of ecological disturbance and recovery underlying the subarctic Atlantic spring plankton bloom

Population Density and Phenology of Tetranychus urticae (Acari: Tetranychidae) in Hop is Linked to the Timing of Sulfur Applications

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

Reconciling Conflicting Phylogenies in the Origin of Sweet Potato and Dispersal to Polynesia

Variable Suites of Non-effector Genes Are Co-regulated in the Type III Secretion Virulence Regulon across the Pseudomonas syringae Phylogeny

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

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

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