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International journal of food microbiology v.243, 2017년, pp.46 - 51   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

The first report of A. novoparasiticus, A. arachidicola and A. pseudocaelatus in Brazilian corn kernels

Viaro, Helena Paula (Departamento de Biologia Geral, Centro de Ciências Biológicas, Universidade Estadual de Londrina, P. O. Box 6001, Londrina 86.057-970, Brazil ) ; da Silva, Josué (Departamento de Biologia Geral, Centro de Ciências Biológicas, Universidade Estadual de Londrina, P. O. Box 6001, Londrina 86.057-970, Brazil ) ; José (Departamento de Biologia Geral, Centro de Ciências Biológicas, Universidade Estadual de Londrina, P. O. Box 6001, Londrina 86.057-970, Brazil ) ; de Souza Ferranti, Larissa (Departamento de Ciência e Tecnologia de Alimentos, Centro de Ciências Agrárias, Universidade Estadual de Londrina, P. O. Box 6001, Londrina 86.057-970, Brazil ) ; Bordini, Jaqueline Gozzi (Departamento de Biologia Geral, Centro de Ciências Biológicas, Universidade Estadual de Londrina, P. O. Box 6001, Londrina 86.057-970, Brazil ) ; Massi, Fernanda Pelisson (Departamento de Biologia Geral, Centro de Ciências Biológicas, Universidade Estadual de Londrina, P. O. Box 6001, Londrina 86.057-970, Brazil ) ; Fungaro, Maria Helena Pelegrinelli ;
  • 초록  

    Abstract Maize is one of the most important commercial crops cultivated throughout the world, mostly in tropical and subtropical countries. It is highly susceptible to mycotoxins, toxic secondary metabolites produced by fungi. In this study, we assessed freshly harvested corn produced in Brazil for aflatoxin contamination and the presence of Aspergillus . B type aflatoxins (AFB 1 +AFB 2 ) were detected in 56% of 16 grain samples, while G type aflatoxins (AFG 1 +AFG 2 ) were detected in 25%. Of the total number of grains ( n = 1920) evaluated for the presence of fungi species, 4.7% were infected with Aspergillus species, 74.5% and 16.7% respectively with Fusarium and Penicillium species and 4.1% with other fungi genera. In total, 89 Aspergillus isolates were identified, most (86 isolates) characterized as belonging to Aspergillus section Flavi , and the remainder to Aspergillus section Cremei (2 isolates) and Aspergillus section Terrei (1 isolate). All the isolates of section Flavi were subjected to molecular analysis. They were found to belong to six species, including Aspergillus novoparasiticus , Aspergillus arachidicola and Aspergillus pseudocaelatus , all aflatoxins B and G producing species, which are herein described for the first time infecting corn kernels. Highlights Aspergillus in corn kernels identified in the light of evidence from molecular biology. Tree Aspergillus species recently described were found in corn kernel samples. A. novoparasiticus , A. arachidicola and A. pseudocaelatus are co-isolated with A. flavus . Aflatoxins B and G were found in 56% and 25% of the corn kernel samples, respectively.


  • 주제어

    Aflatoxins .   Aspergillus identification .   Aspergillus section Flavi .   Corn contamination.  

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