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Survey of Freshly Harvested Oat Grains from Southern Brazil Reveals High Incidence of Type B Trichothecenes and Associated Fusarium Species.
Pinheiro, Mariana; Iwase, Caio H T; Bertozzi, Bruno G; Caramês, Elem T S; Carnielli-Queiroz, Lorena; Langaro, Nádia C; Furlong, Eliana B; Correa, Benedito; Rocha, Liliana O.
Afiliación
  • Pinheiro M; Department of Food Science and Nutrition, Food Engineering Faculty, State University of Campinas-UNICAMP, Campinas 13083-862, Brazil.
  • Iwase CHT; Department of Food Science and Nutrition, Food Engineering Faculty, State University of Campinas-UNICAMP, Campinas 13083-862, Brazil.
  • Bertozzi BG; Department of Food Science and Nutrition, Food Engineering Faculty, State University of Campinas-UNICAMP, Campinas 13083-862, Brazil.
  • Caramês ETS; Department of Food Science and Nutrition, Food Engineering Faculty, State University of Campinas-UNICAMP, Campinas 13083-862, Brazil.
  • Carnielli-Queiroz L; Institute of Biomedical Sciences, University of Sao Paulo, São Paulo 05508-000, Brazil.
  • Langaro NC; Faculty of Agronomy and Veterinary Medicine, University of Passo Fundo, Passo Fundo 99042-800, Brazil.
  • Furlong EB; School of Chemistry and Food, Federal University of Rio Grande, Rio Grande 96203-900, Brazil.
  • Correa B; Institute of Biomedical Sciences, University of Sao Paulo, São Paulo 05508-000, Brazil.
  • Rocha LO; Department of Food Science and Nutrition, Food Engineering Faculty, State University of Campinas-UNICAMP, Campinas 13083-862, Brazil.
Toxins (Basel) ; 13(12)2021 12 01.
Article en En | MEDLINE | ID: mdl-34941693
The current study investigated the fungal diversity in freshly harvested oat samples from the two largest production regions in Brazil, Paraná (PR) and Rio Grande do Sul (RS), focusing primarily on the Fusarium genus and the presence of type B trichothecenes. The majority of the isolates belonged to the Fusarium sambucinum species complex, and were identified as F. graminearum sensu stricto (s.s.), F. meridionale, and F. poae. In the RS region, F. poae was the most frequent fungus, while F. graminearum s.s. was the most frequent in the PR region. The F. graminearum s.s. isolates were 15-ADON genotype, while F. meridionale and F. poae were NIV genotype. Mycotoxin analysis revealed that 92% and 100% of the samples from PR and RS were contaminated with type B trichothecenes, respectively. Oat grains from PR were predominantly contaminated with DON, whereas NIV was predominant in oats from RS. Twenty-four percent of the samples were contaminated with DON at levels higher than Brazilian regulations. Co-contamination of DON, its derivatives, and NIV was observed in 84% and 57.7% of the samples from PR and RS, respectively. The results provide new information on Fusarium contamination in Brazilian oats, highlighting the importance of further studies on mycotoxins.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Avena / Fusarium / Tricotecenos Tipo B Tipo de estudio: Incidence_studies / Risk_factors_studies País/Región como asunto: America do sul / Brasil Idioma: En Revista: Toxins (Basel) Año: 2021 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Suiza
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Avena / Fusarium / Tricotecenos Tipo B Tipo de estudio: Incidence_studies / Risk_factors_studies País/Región como asunto: America do sul / Brasil Idioma: En Revista: Toxins (Basel) Año: 2021 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Suiza