Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/471156
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dc.contributor.authorALMEIDA, A. M. R.pt_BR
dc.contributor.authorBINNECK, E.pt_BR
dc.contributor.authorPIUGA, F. F.pt_BR
dc.contributor.authorMARIN, S. R. R.pt_BR
dc.contributor.authorVALLE, P. R. Z. R. dopt_BR
dc.contributor.authorSILVEIRA, C. A.pt_BR
dc.date.accessioned2011-10-08T01:02:50Z-
dc.date.available2011-10-08T01:02:50Z-
dc.date.created2009-02-17pt_BR
dc.date.issued2008pt_BR
dc.identifier.citationTropical Plant Pathology, Brasília, DF, v. 33, n. 1, p. 20-26. jan./fev. 2008.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/471156pt_BR
dc.descriptionSoybean powdery mildew (Erysiphe diffusa) was considered a minor disease in Brazil in the decades immediately after its identification. However, since the outbreak in 1996/97 in all cultivated areas the disease has become a constant threat to farmers and losses of up to 25% have been reported. The report of a new species, E. glycines, infecting soybean in Japan, and the occurrence of the disease in other plant species (Phaseolus vulgaris, Helianthus annuus,Sonchus oleraceus,Hypochaeris brasiliensis, and Bidens pilosa) commonly found growing nearby soybean fields, raised questions in relation to the taxonomy of the powdery mildew strains found in or around soybean fields in Brazil. Analysis of the internal transcribed sequence (ITS) of the rDNA was undertaken to ascertain the pathogen species associated to each of the hosts. Powdery mildew strains isolated from Glycine max were identified as E. diffusa. Strains from P. vulgaris were very similar to E. diffusa, with 4 nt differences, and differed from Erysiphe poligony by 11 nt. Strains from H. annuus and S. oleraceus grouped with the species Golovinomyces cichoracearum, while strains from H. brasiliensis and B. pilosa were similar to Podosphaera fusca and Neoerysiphe cumminsiana, respectively. To our knowledge this is the first molecular identification of powdery mildew in Brazil based on rDNA sequence comparison. In addition, this study presented evidence for the occurrence of N. cumminsiana in America.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectSunflowerpt_BR
dc.titleCharacterization of powdery mildews strains from soybean, bean, sunflower, and weeds in Brazil using rDNA-ITS sequences.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2011-10-08T01:02:50Zpt_BR
dc.subject.thesagroSojaeng
dc.subject.thesagroFeijãoeng
dc.subject.thesagroGirassoleng
dc.subject.nalthesaurusSoybeanseng
dc.subject.nalthesaurusBeanseng
riaa.ainfo.id471156pt_BR
riaa.ainfo.lastupdate2011-10-07pt_BR
dc.contributor.institutionÁlvaro Manoel Rodrigues de Almeida, CNPSo; Eliseu Binneck, CNPSo; Fernanda F. Piuga, UNOPAR; Silvana Regina Rockenbach Marin, CNPSo; Paula R.Z. Ribeiro do Valle, UEL; Cesar A. Silveira, CNPSo.pt_BR
Aparece nas coleções:Artigo em periódico indexado (CNPSO)

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