Artículo

Abstract:

The principal agents of Fusarium head blight in the main cropping area of Argentina were investigated in heavily infected samples. The ability of the isolates to produce trichothecenes was determined by GC and HPLC. Fusarium graminearum was the predominant species and of 33 isolates, 10 produced deoxinivalenol (DON) (0.1- 29 mg kg-1), 13 produced both deoxinivalenol (1.0- 708 mg kg-1) and nivalenol (0.1- 6.2mg kg -1), 12 produced 3-acetyldeoxinivalenol (0.1- 14 mg kg-1), 13 produced 15-acetyldeoxinivalenol (0.1- 1.9 mg kg-1), 10 produced Fusarenone X (0.1- 2.4 mg kg-1) and 7 produced zearalenone (0.1- 0.6 mg kg-1). These results suggest that F. graminearum strains isolated from the wheat growing regions in Argentina belong to DON chemotype. Although some strains produced both deoxinivalenol and nivalenol, nivalenol was produced in lower levels. The natural occurrence of nivalenol in wheat affected by head-blight collected in the main production area during two years (2001-2002) was also determined. From 19 samples 13 were contaminated with deoxinivalenol in a range of 0.3 to 70 mg kg-1 and 2 samples with both deoxinivalenol (7.5 and 6.7 mg kg-1) and nivalenol (0.05 and 0.1 mg kg -1), respectively. This is the first report of natural occurrence of nivalenol in wheat cultivate in Argentina.

Registro:

Documento: Artículo
Título:Natural occurrence of nivalenol and mycotoxigenic potential of Fusarium graminearum strains in wheat affected by head blight in Argentina
Autor:Fernandez Pinto, V.E.; Terminiello, L.A.; Basilico, J.C.; Ritieni, A.
Filiación:Departamento de Química Orgánica, Facultad de Ciencias Exactas Y Naturales, Ciudad Universitaria, Buenos Aires, Argentina
Cátedra de Industrias Agrícolas de Lechería- Agroindustrias, Facultad de Ciencias Agrarias Y Forestales, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
Ingeniería en Alimentos, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Sta. Fe, Argentina
Dipartamento di Scienza degli Alimenti, Università di Napoli Federico II, Portici, Napoli, Italy
Departamento de Química Orgánica, Facultad de Ciencias Exactas Y Naturales, Pabellón II, (1428), Buenos Aires, Argentina
Palabras clave:Fusarium; Nivalenol; Toxicogenic potential; Trichotecenes; Fusarium; Gibberella zeae; Triticum aestivum
Año:2008
Volumen:39
Número:1
Página de inicio:157
Página de fin:162
DOI: http://dx.doi.org/10.1590/S1517-83822008000100031
Título revista:Brazilian Journal of Microbiology
Título revista abreviado:Braz. J. Microbiol.
ISSN:15178382
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_15178382_v39_n1_p157_FernandezPinto.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15178382_v39_n1_p157_FernandezPinto

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Citas:

---------- APA ----------
Fernandez Pinto, V.E., Terminiello, L.A., Basilico, J.C. & Ritieni, A. (2008) . Natural occurrence of nivalenol and mycotoxigenic potential of Fusarium graminearum strains in wheat affected by head blight in Argentina. Brazilian Journal of Microbiology, 39(1), 157-162.
http://dx.doi.org/10.1590/S1517-83822008000100031
---------- CHICAGO ----------
Fernandez Pinto, V.E., Terminiello, L.A., Basilico, J.C., Ritieni, A. "Natural occurrence of nivalenol and mycotoxigenic potential of Fusarium graminearum strains in wheat affected by head blight in Argentina" . Brazilian Journal of Microbiology 39, no. 1 (2008) : 157-162.
http://dx.doi.org/10.1590/S1517-83822008000100031
---------- MLA ----------
Fernandez Pinto, V.E., Terminiello, L.A., Basilico, J.C., Ritieni, A. "Natural occurrence of nivalenol and mycotoxigenic potential of Fusarium graminearum strains in wheat affected by head blight in Argentina" . Brazilian Journal of Microbiology, vol. 39, no. 1, 2008, pp. 157-162.
http://dx.doi.org/10.1590/S1517-83822008000100031
---------- VANCOUVER ----------
Fernandez Pinto, V.E., Terminiello, L.A., Basilico, J.C., Ritieni, A. Natural occurrence of nivalenol and mycotoxigenic potential of Fusarium graminearum strains in wheat affected by head blight in Argentina. Braz. J. Microbiol. 2008;39(1):157-162.
http://dx.doi.org/10.1590/S1517-83822008000100031