{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T11:14:12Z","timestamp":1791976452864,"version":"4.4.0"},"reference-count":35,"publisher":"Scientific Societies","issue":"12","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Phytopathology\u00ae"],"published-print":{"date-parts":[[2006,12]]},"abstract":"<jats:p> Common scab is a serious disease of potatoes and other root and tuber crops, affecting crop quality and market value. The disease is caused by gram positive soil bacteria in the genus Streptomyces. Disease incidence and severity vary in different locations and years; this is due in part to variation in the environment (weather) and genetic variation in potato cultivars. Little information is available on the contribution of genetic variation by the pathogen. To examine genetic diversity in different locations within the United States, streptomycetes were isolated from lesions on field-grown potatoes from six states. Isolates were classified into species based on sequence of variable regions in the 16s rRNA gene. The presence of genes associated with the recently described S. turgidiscabies pathogenicity island (PAI) was also determined. About half of the isolates belonged to S. scabies or S. europaeiscabiei based on 16s rDNA sequence, and had characteristic features of the PAI. They were found in all six states, and were pathogenic on potato and radish. The remaining isolates included pathogens and nonpathogens. They were varied in appearance, and represent several species, including one pathogenic species not previously reported. Some pathogenic isolates lacked one or more genes characteristic of the PAI, although all had genes for biosynthesis of the pathogenicity determinant thaxtomin. In this relatively small survey, regional differences in scab-causing streptomycetes were seen. This report furnishes tools and baseline data for population genetic study of scab-causing streptomycetes in the United States. <\/jats:p>","DOI":"10.1094\/phyto-96-1363","type":"journal-article","created":{"date-parts":[[2007,5,11]],"date-time":"2007-05-11T11:31:25Z","timestamp":1178883085000},"page":"1363-1371","source":"Crossref","is-referenced-by-count":124,"title":["A Survey of Genetic Variation in <i>Streptomyces<\/i> Isolates Causing Potato Common Scab in the United States"],"prefix":"10.1094","volume":"96","author":[{"given":"Leslie A.","family":"Wanner","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1665","reference":[{"key":"p_2","doi-asserted-by":"crossref","unstructured":"Bouchek-Mechiche, K., Gardan, L., Normand, P., and Jouan, B. 2000. DNA relatedness among strains of Streptomyces pathogenic to potato in France: Description of three new species, S. europaeiscabiei sp. nov. and S. stelliscabiei sp. nov. associated with common scab, and S. reticuliscabiei sp. nov. associated with netted scab. Int. J. Syst. Evol. 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Stevenson, R. Loria, G. D. Franc, and D. P Weingartner, eds. The American Phytopathological Society, St. Paul, MN."},{"key":"p_26","doi-asserted-by":"publisher","DOI":"10.1094\/PDIS.1997.81.8.836"},{"key":"p_27","doi-asserted-by":"publisher","DOI":"10.1099\/00207713-48-2-495"},{"key":"p_28","doi-asserted-by":"publisher","DOI":"10.1099\/ijs.0.02629-0"},{"key":"p_29","doi-asserted-by":"publisher","DOI":"10.1094\/PDIS.2003.87.11.1290"},{"key":"p_30","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-3059.2005.01178.x"},{"key":"p_31","unstructured":"Powelson, M. L., Johnson, K. B., and Rowe, R. C. 1993. Management of diseases caused by soilborne pathogens. Pages 154-156 in: Potato Health Management. R. C. Rowe, ed. The American Phytopathological Society, St. Paul, MN."},{"key":"p_32","unstructured":"Sambrook, J., Fritsch, F., and Maniatis, T. (eds.) 1982. Molecular Cloning: A Laboratory Manual. 3rd ed. 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