Index Catalog // ScholarsArchive@OSU

Characterisation of virulence reactions for Heterodera avenae populations from two localities in Algeria

Creator:: Haddadi, Fatima, Mokabli, Aissa, and Smiley, Richard W.
Abstract:: Heterodera avenae is widely distributed in areas where most cereal crops are produced in Algeria. However, the virulence of the Algerian populations of this nematode on individual cereal species and cultivars has not been well documented. The virulence of H. avenae populations from Tiaret and from Oued Smar were tested...
Resource Type:: Article
Full Text:: 1 , Aïssa MOKABLI 2 , and Richard W. SMILEY 3 1 Faculté des Sciences Biologiques

Detection and Quantification of Pratylenchus thornei in DNA Extracted from Soil Using Real-Time PCR

Creator:: Yan, Guiping, Smiley, Richard W., and Okubara, Patricia A.
Abstract:: The root-lesion nematode Pratylenchus (hornet is one of the most important pests restricting productivity of wheat in the Pacific Northwest (PNW). It is laborious and difficult to use microscopy to count and identify the nematodes in soils. A SYBR Green I-based real-time polymerase chain reaction (PCR) assay was developed to...
Resource Type:: Article
Full Text:: Pratylenchus thornei in DNA Extracted from Soil Using Real-Time PCR Guiping Yan, Richard W. Smiley, and

Detection of Dual Heterodera avenae Resistance plus Tolerance Traits in Spring Wheat

Creator:: Smiley, Richard W. and Marshall, Juliet M.
Abstract:: The cereal cyst nematode Heterodera avenae reduces wheat yield in the Pacific Northwest. Resistance and tolerance traits among spring wheat cultivars were poorly defined. Screening trials were conducted with 39 cultivars over a 2-yr period in irrigated commercial fields that were infested by H. avenae. Comparisons were made between drill...
Resource Type:: Article
Full Text:: in Spring Wheat Richard W. Smiley, Oregon State University, Columbia Basin Agricultural Research

Developing a Real-Time PCR Assay for Detection and Quantification of Pratylenchus neglectus in Soil

Creator:: Yan, Guiping, Smiley, Richard W., Okubara, Patricia A., Skantar, Andrea M., and Reardon, Catherine L.
Abstract:: Pratylenchus neglectus is one of the most widespread and economically important nematodes that invades plant roots and restricts wheat productivity in the Pacific Northwest. It is challenging to quantify P neglectus using microscopic methods for studies that require large-scale sampling, such as assessment of rotation crops, wheat cultivars, and other...
Resource Type:: Article
Full Text:: Assay for Detection and Quantification of Pratylenchus neglectus in Soil Guiping Yan and Richard W

Discovery of Heterodera filipjevi in Washington and comparative virulence with H. avenae on wheat

Creator:: Smiley, Richard W. and Yan, Guiping
Abstract:: The cereal cyst nematode Heterodera avenae suppresses wheat production in the western United States. A second species of cereal cyst nematode, H. filipjevi, was identified in eastern Oregon during 2008. This paper reports the discovery of H. filipjevi–infested fields in eastern Washington, thereby extending the known distribution of H. filipjevi...
Resource Type:: Article
Full Text:: Richard W. Smiley and Guiping Yan1, Oregon State University, Columbia Basin Agricultural Research Center

Effect of Climate on the Distribution of Fusarium spp. Causing Crown Rot of Wheat in the Pacific Northwest of the United States

Creator:: Poole, Grant J., Smiley, Richard W., Walker, Carl, Huggins, David, Rupp, Richard, Abatzoglou, John T., Garland-Campbell, Kimberly, and Paulitz, Timothy C.
Abstract:: Fusarium crown rot (FCR) is one of the most widespread root and crown diseases of wheat in the Pacific Northwest (PNW) of the United States. Our objectives were to characterize crown rot severity and distribution throughout the PNW by conducting a survey of 210 fields covering the diverse dryland wheat-producing...
Resource Type:: Article
Full Text:: United States Grant J. Poole, Richard W. Smiley, Carl Walker, David Huggins, Richard Rupp, John

Identification of Resistance to Pratylenchus neglectus and Pratylenchus thornei in Iranian Landrace Accessions of Wheat

Creator:: Thompson, Alison L., Smiley, Richard W., Paulitz, Timothy C., and Garland-Campbell, Kim
Abstract:: The pathogenic nematodes Pratylenchus neglectus (Rensch, 1924) Filipjev and Schuurmans Stekhoven, 1941 and Pratylenchus thornei Sher and Allen, 1953 cause severe yield losses in wheat (Triticum aestivum L.). The objectives in this study were to assay a collection of Iranian landrace accessions collected from 12 provinces in Iran to identify...
Resource Type:: Article

Rapid Quantification of Soilborne Pathogen Communities in Wheat-based Long-term Field Experiments

Creator:: Smiley, Richard W., Machado, Stephen, Rhinhart, Karl E. L., Reardon, Catherine L., and Wuest, Stewart B.
Abstract:: This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by The American Phytopathological Society and can be found at: https://doi.org/10.1094/PDIS-09-15-1020-RE
Resource Type:: Article
Full Text:: Communities in Wheat-based Long-term Field Experiments Richard W. Smiley, Stephen Machado, and Karl E

Registration of the LouAu (Louise/IWA8608077) Wheat Recombinant Inbred Line Mapping Population

Creator:: Thompson, Alison L., Smiley, Richard W., and Garland-Campbell, Kim
Abstract:: LouAu (Louise/IWA8608077) (MP-7, NSL 511036) is a wheat (Triticum aestivum L.) recombinant inbred line population developed by the USDA-ARS, with Oregon State and Washington State Universities, from a cross between the soft white spring cultivar Louise and the white facultative Iranian landrace IWA8608077. The population was developed by single seed...
Resource Type:: Article
Full Text:: JOURNAL OF PLANT REGISTRATIONS m a p p i n g p o p u l a t i o n 424 Registration of the LouAu (Louise

Relationship Between Climatic Factors and Distribution of Pratylenchus spp. in the Dryland Wheat-Production Areas of Eastern Washington

Creator:: Kandel, Shyam L., Smiley, Richard W., Garland-Campbell, Kimberly, Elling, Axel A., Abatzoglou, John T., Huggins, David, Rupp, Richard, and Paulitz, Timothy C.
Abstract:: Field surveys were conducted by collecting soil samples to estimate nematode densities in soil from winter wheat, spring wheat, spring barley, and spring legumes (lentil, chickpea, and pea) fields during 2010 and 2011. Pratylenchus spp. were observed in 60% of sampled fields. However, nematodes were detected in nearly all of...
Resource Type:: Article
Full Text:: Plant Pathology, Washington State University, Pullman 99164-6430; Richard W. Smiley, Columbia Basin

ScholarsArchive@OSU

Characterisation of virulence reactions for Heterodera avenae populations from two localities in Algeria

Detection and Quantification of Pratylenchus thornei in DNA Extracted from Soil Using Real-Time PCR

Detection of Dual Heterodera avenae Resistance plus Tolerance Traits in Spring Wheat

Developing a Real-Time PCR Assay for Detection and Quantification of Pratylenchus neglectus in Soil

Discovery of Heterodera filipjevi in Washington and comparative virulence with H. avenae on wheat

Effect of Climate on the Distribution of Fusarium spp. Causing Crown Rot of Wheat in the Pacific Northwest of the United States

Identification of Resistance to Pratylenchus neglectus and Pratylenchus thornei in Iranian Landrace Accessions of Wheat

Rapid Quantification of Soilborne Pathogen Communities in Wheat-based Long-term Field Experiments

Registration of the LouAu (Louise/IWA8608077) Wheat Recombinant Inbred Line Mapping Population

Relationship Between Climatic Factors and Distribution of Pratylenchus spp. in the Dryland Wheat-Production Areas of Eastern Washington

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