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      Fusarium verticillioides strains isolated from corn feed: characterization by fumonisin production and RAPD fingerprinting

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          Abstract

          In this study a total of 16 Fusarium verticillioides strains isolated from corn feed samples were characterized by fumonisin (FB) production and random amplified polymorphic DNA (RAPD). All the strains produced FB1 and FB2 with levels ranging from 2.41 to 3996.36 µg/g, and from 1.18 to 1209.91 µg/g, respectively. From the 16 F. verticillioides strains, four were identified as low (3.59 to 1289.84 µg/g), eight as intermediate (>1289.84 to 3772.44 µg/g) and four strains as high (>3772.44 µg/g) fumonisin producers. From the total of 105 loci amplified, 60 (57.14%) were polymorphic. RAPD analysis showed very similar patterns among low, moderate and high fumonisin-producing strains. Although RAPD markers were capable of discriminating the different F. verticillioides strains, there was no clear association between these makers and fumonisin production.

          Translated abstract

          Neste estudo, 16 cepas de F. verticillioides isoladas de amostras de ração de milho foram caracterizadas com base na produção de fumonisinas (FB) e em marcadores de polimorfismos de DNA amplificado ao acaso (RAPD). Todas as cepas produziram FB1 e FB2, com níveis variando, respectivamente, de 2,41 a 3996,36 µg/g e 1,18 a 1209,91 µg/g. De acordo com a produção de fumonisinas totais (FB1 + FB2) e a distribuição por análise de quartis, do total de 16 cepas de F. verticillioides, quatro foram identificadas como baixas produtoras de fumonisinas (3,59 a 1289,84 µg/g), oito como intermediárias (>1289,84 a 3772,44 µg/g) e quatro como altas produtoras de fumonisinas (>3772,44 µg/g). Os 10 primers utilizados amplificaram 105 locos, 60 (57,14%) dos quais foram polimórficos. As análises de RAPD mostraram padrões muito similares entre as cepas baixas, médias e altas produtoras de fumonisinas. Embora os marcadores RAPD tenham se mostrado capazes de discriminar as diferentes cepas de F. verticillioides, não foi detectada nenhuma associação entre estes marcadores e a produção de fumonisinas.

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          Most cited references34

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          Production of fumonisin analogs by Fusarium species.

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            Rapid preparation of DNA from filamentous fungi

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              Quantitative Determination of Fumonisins B1and B2by High-Performance Liquid Chromatography with Fluorescence Detection

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                Author and article information

                Journal
                babt
                Brazilian Archives of Biology and Technology
                Braz. arch. biol. technol.
                Instituto de Tecnologia do Paraná - Tecpar (Curitiba, PR, Brazil )
                1516-8913
                1678-4324
                August 2010
                : 53
                : 4
                : 953-960
                Affiliations
                [03] Kobe orgnameKobe Institute of Health orgdiv1Department of Food Chemistry Japan
                [04] Londrina PR orgnameUniversidade Estadual de Londrina orgdiv1Departamento de Ciência e Tecnologia de Alimentos Brasil
                [01] Londrina PR orgnameUniversidade Estadual de Londrina orgdiv1Departamento de Bioquímica e Biotecnologia Brasil
                Article
                S1516-89132010000400026 S1516-8913(10)05300426
                10.1590/S1516-89132010000400026
                8b8d8082-7baa-4748-9385-058c649df23b

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 25 June 2008
                : 08 December 2009
                : 10 November 2008
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 33, Pages: 8
                Product

                SciELO Brazil

                Categories
                Food/Feed Science and Technology

                Fumonisin,Fusarium verticillioides,genetic variability,RAPD

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