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- W1970322763 abstract "HomePlant DiseaseVol. 99, No. 7First Report of Goss’s Bacterial Wilt and Leaf Blight on Corn Caused by Clavibacter michiganensis subsp. nebraskensis in Alberta, Canada PreviousNext DISEASE NOTES OPENOpen Access licenseFirst Report of Goss’s Bacterial Wilt and Leaf Blight on Corn Caused by Clavibacter michiganensis subsp. nebraskensis in Alberta, CanadaR. J. Howard, M. W. Harding, J. Lynn, L. M. Kawchuk, and N. M. RasmussenR. J. HowardSearch for more papers by this author, M. W. HardingSearch for more papers by this author, J. LynnSearch for more papers by this author, L. M. KawchukSearch for more papers by this author, and N. M. RasmussenSearch for more papers by this authorAffiliationsAuthors and Affiliations R. J. Howard , RJH Ag Research Solutions Ltd., Brooks, Alberta T1R 1C3, Canada M. W. Harding , Crop Diversification Centre South, Alberta Agriculture and Rural Development, Brooks, Alberta T1R 1E6, Canada J. Lynn L. M. Kawchuk , Lethbridge Research Centre, Agriculture and Agri-Food Canada, Lethbridge, Alberta T1J 4B1, Canada N. M. Rasmussen , DuPont Pioneer, Taber, Alberta T1G 0A8, Canada. Published Online:2 Jun 2015https://doi.org/10.1094/PDIS-11-14-1117-PDNAboutSectionsSupplemental ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InRedditEmailWechat In August of 2013, leaves of hybrid grain and silage corn (Zea mays L.) from four counties in southern Alberta and one county in central Alberta were observed to have symptoms characteristic of Goss’s bacterial wilt and leaf blight caused by Clavibacter michiganensis subsp. nebraskensis (Vidaver and Mandel) Davis et al. The average incidence of field symptoms was approximately 10% and ranged from trace levels to 25%. A total of 46 fields were surveyed and 11 suspicious samples were tested, six of which were confirmed to be positive for Goss’s bacterial wilt and leaf blight. The symptoms presented were large, tan-colored, intraveinal lesions with dark “freckles” apparent within some of the lesions. Bacteria streamed from symptomatic leaf tissues cut with a sterile scalpel and viewed under a compound, phase contrast microscope at 400× magnification. No fungal signs were observed when viewed under a binocular dissecting microscope at 80× magnification. The bacteria that streamed from leaves were small, pleomorphic, gram-positive rods. Bacteria were streaked onto nutrient agar and cream-colored colonies developed. The presence of bacteria from the genus Clavibacter was confirmed using Agdia Immunostrip test kits (Agdia Inc., London, ON) for detection of C. michiganensis subsp. michiganensis, but which also cross-react with C. michiganensis subsp. nebraskensis. Positive test results were only obtained on symptomatic tissues and bacterial strains isolated from the symptomatic leaf tissues. DNA extraction and sequencing was performed on purified strains to confirm the presence of C. michiganensis subsp. nebraskensis with oligonucleotides PSA7F and PSAR specific for the 16S-23S ribosomal DNA intergenic spacer sequence (Pastrik and Rainey 1999). PCR amplification of the 394-bp sequence was performed and the amplicon sequence was submitted to GenBank (Accession No. KJ792867). Subsequent BLAST analysis of the resulting sequences indicated a 100% match for C. michiganensis subsp. nebraskensis (HE614873.1). Koch’s postulates were fulfilled by inoculating corn seedlings via stem injection with three purified strains of the putative C. michigenesis subsp. nebraskensis bacterium. All three strains caused symptoms of Goss’s leaf blight on corn leaves within 3 weeks and lesions displayed bacterial streaming. The bacteria that streamed from the lesions were small, gram-positive, pleomorphic rods and tested positive using Agdia Immunostrip test kits for Clavibacter. No signs or symptoms of Goss’s bacterial wilt and leaf blight were seen in control plants. To our knowledge, this represents the first report of Goss’s bacterial wilt and leaf blight on corn in Alberta. Previous reports indicated that this disease is expanding into Canada (Desjardins 2010) and into new areas of the United States (Korus et al. 2011). Acres of silage, grazing, grain, fresh market, and processing corn have been steadily increasing in Alberta. Goss’s wilt represents a significant threat to the expanding corn industry in Alberta, particularly where susceptible corn varieties predominate.References:Desjardins, M. L. 2010. Can. Plant Dis. Surv. 90:20. Google ScholarKorus, K. A., et al. 2011. Plant Dis. 95:73. https://doi.org/10.1094/PDIS-07-10-0541 Link, ISI, Google ScholarPastrik, K.-H., and Rainey, F. A. 1999. J. Phytopathol. 147:687. https://doi.org/10.1046/j.1439-0434.1999.00442.x Crossref, ISI, Google ScholarDetailsFiguresLiterature CitedRelated Vol. 99, No. 7 July 2015SubscribeISSN:0191-2917e-ISSN:1943-7692 Metrics Article History Issue Date: 7 Jul 2015Published: 2 Jun 2015First Look: 17 Feb 2015Accepted: 6 Feb 2015 Page: 1034 Information© 2015 The American Phytopathological SocietyCited byClavibacter nebraskensis causing Goss's wilt of maize: Five decades of detaining the enemy in the New World18 September 2022 | Molecular Plant Pathology, Vol. 57Clavibacter nebraskensis (Goss's bacterial wilt and leaf blight)CABI Compendium, Vol. CABI CompendiumEffects of Hybrid Susceptibility and Inoculation Timing on Goss’s Bacterial Wilt and Leaf Blight Severity and Corn YieldElizabeth C. Bauske and Andrew J. Friskop12 May 2021 | Plant Disease, Vol. 105, No. 6Evaluation of Corn Germplasm Accessions for Resistance to Clavibacter nebraskensis, Causal Agent of Goss’s Bacterial Wilt and Leaf BlightKelsey M. Mehl, Mark A. Mikel, and Carl A. Bradley29 October 2020 | Plant Disease, Vol. 105, No. 1Identification of Loci That Confer Resistance to Bacterial and Fungal Diseases of Maize1 August 2020 | G3 Genes|Genomes|Genetics, Vol. 10, No. 8Genome-Wide Association and Gene Co-expression Network Analyses Reveal Complex Genetics of Resistance to Goss’s Wilt of Maize1 October 2019 | G3 Genes|Genomes|Genetics, Vol. 9, No. 10Infection, Survival, and Growth of Clavibacter nebraskensis on Crop, Weed, and Prairie Plant SpeciesB. T. Webster, R. D. Curland, R. R. McNally, C. A. Ishimaru, and D. K. Malvick19 June 2019 | Plant Disease, Vol. 103, No. 8Genome‐Wide Analysis and Prediction of Resistance to Goss's Wilt in Maize1 June 2019 | The Plant Genome, Vol. 12, No. 2Re-evaluation of Seed Transmission of Clavibacter michiganensis subsp. nebraskensis in Zea maysCharles C. Block, Lisa M. Shepherd, Gladys C. Mbofung-Curtis, Jeff M. Sernett, and Alison E. Robertson9 November 2018 | Plant Disease, Vol. 103, No. 1Goss’s bacterial wilt and leaf blight of corn in Canada – disease update19 September 2018 | Canadian Journal of Plant Pathology, Vol. 40, No. 4Developed and validated inoculation and disease assessment methods for Goss's bacterial wilt and leaf blight disease of cornCrop Protection, Vol. 112Identification of Quantitative Trait Loci for Goss's Wilt of Maize1 May 2018 | Crop Science, Vol. 58, No. 3Quantitative Disease Resistance: Dissection and Adoption in MaizeMolecular Plant, Vol. 10, No. 3PCR-Mediated Detection and Quantification of the Goss’s Wilt Pathogen Clavibacter michiganensis subsp. nebraskensis Via a Novel Gene TargetR. Ryan McNally, Carol A. Ishimaru, and Dean K. Malvick11 October 2016 | Phytopathology®, Vol. 106, No. 12Dissemination of Goss’s Wilt of Corn and Epiphytic Clavibacter michiganensis subsp. nebraskensis from Inoculum Point SourcesSharon Eggenberger, Mercedes M. Diaz-Arias, Andrew V. Gougherty, Forrest W. Nutter, Jeff Sernett, and Alison E. Robertson1 February 2016 | Plant Disease, Vol. 100, No. 4" @default.
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- W1970322763 title "First Report of Goss’s Bacterial Wilt and Leaf Blight on Corn Caused by <i>Clavibacter michiganensis</i> subsp. <i>nebraskensis</i> in Alberta, Canada" @default.
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