Use este identificador para citar ou linkar para este item:
https://locus.ufv.br//handle/123456789/22728
Tipo: | Artigo |
Título: | A high proportion of NX-2 genotype strains are found among Fusarium graminearum isolates from northeastern New York State |
Autor(es): | Del Ponte, Emerson M. Lofgren, Lotus Riddle, Jakob Kuhnem, Paulo R. Cummings, Jaime A. Bergstrom, Gary C. Kistler, H. Corby Dong, Yanhong |
Abstract: | Fusarium graminearum, a fungal pathogen of wheat, barley, and corn, produces a variety of trichothecene mycotoxins that are important as virulence factors and as seed contaminants reducing grain quality. A previous survey of the pathogen in New York State identified variation in genes indicative of trichothecene diversity. Recently F. graminearum strains that produce a newly characterized trichothecene mycotoxin called NX-2 have been identified in North America. Using a large collection of F. graminearum strains from Willsboro NY, we found that the frequency of NX-2 genotype strains was 7–14 times higher than at other locations where it was reported previously. NX-2 genotypes were not only found in wheat heads but also found in high frequency from air samples and on maize ears and stubble. Because NX-2 genotypes may represent as much as 20% of the total F. graminearum population, this regional fungal population provides an opportunity to assess the effects of the novel NX-2 trichothecene on fungal virulence, toxin loading, and patterns of host specificity that could inform future disease management and plant breeding. |
Palavras-chave: | Fusarium head blight NX-2 Mycotoxin Fusarium graminearum |
Editor: | European Journal of Plant Pathology |
Tipo de Acesso: | US Government 2017 |
URI: | https://doi.org/10.1007/s10658-017-1314-6 http://www.locus.ufv.br/handle/123456789/22728 |
Data do documento: | Mar-2018 |
Aparece nas coleções: | Fitopatologia - Artigos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
---|---|---|---|---|
artigo.pdf Until 2100-12-31 | Texto completo | 358,92 kB | Adobe PDF | Visualizar/Abrir ACESSO RESTRITO |
Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.