Natural occurrence of nivalenol and mycotoxigenic potential of <i>Fusarium graminearum</i> strains in wheat affected by head blight in Argentina

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. <i>Fusarium graminearum</i> was the predominant species and of 33 isolat...

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Detalles Bibliográficos
Autores principales: Fernández Pinto, V. E., Terminiello, Laura Adriana, Basílico, J. C., Ritieni, A.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2008
Materias:
Ciencias Agrarias
Ciencias Exactas
Química
Gibberella zeae
Fusarium
Triticum aestivum
Nivalenol
toxicogenic potential
Trichotecenes
Argentina
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/36792
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-36792
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
Ciencias Exactas
Química
Gibberella zeae
Fusarium
Triticum aestivum
Nivalenol
toxicogenic potential
Trichotecenes
Argentina
spellingShingle Ciencias Agrarias
Ciencias Exactas
Química
Gibberella zeae
Fusarium
Triticum aestivum
Nivalenol
toxicogenic potential
Trichotecenes
Argentina
Fernández Pinto, V. E.
Terminiello, Laura Adriana
Basílico, J. C.
Ritieni, A.
Natural occurrence of nivalenol and mycotoxigenic potential of <i>Fusarium graminearum</i> strains in wheat affected by head blight in Argentina
topic_facet Ciencias Agrarias
Ciencias Exactas
Química
Gibberella zeae
Fusarium
Triticum aestivum
Nivalenol
toxicogenic potential
Trichotecenes
Argentina
description 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. <i>Fusarium graminearum</i> was the predominant species and of 33 isolates, 10 produced deoxinivalenol (DON) (0.1- 29 mg kg<SUP>-1</SUP>), 13 produced both deoxinivalenol (1.0- 708 mg kg<SUP>-1</SUP>) and nivalenol (0.1- 6.2mg kg<SUP>-1</SUP>), 12 produced 3-acetyldeoxinivalenol (0.1- 14 mg kg<SUP>-1</SUP>), 13 produced 15-acetyldeoxinivalenol (0.1- 1.9 mg kg<SUP>-1</SUP>), 10 produced Fusarenone X (0.1- 2.4 mg kg<SUP>-1</SUP>) and 7 produced zearalenone (0.1- 0.6 mg kg<SUP>-1</SUP>). These results suggest that <i>F. graminearum</i> 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<SUP>-1</SUP> and 2 samples with both deoxinivalenol (7.5 and 6.7 mg kg<SUP>-1</SUP>) and nivalenol (0.05 and 0.1 mg kg<SUP>-1</SUP>), respectively. This is the first report of natural occurrence of nivalenol in wheat cultivate in Argentina.
format Articulo
Articulo
author Fernández Pinto, V. E.
Terminiello, Laura Adriana
Basílico, J. C.
Ritieni, A.
author_facet Fernández Pinto, V. E.
Terminiello, Laura Adriana
Basílico, J. C.
Ritieni, A.
author_sort Fernández Pinto, V. E.
title Natural occurrence of nivalenol and mycotoxigenic potential of <i>Fusarium graminearum</i> strains in wheat affected by head blight in Argentina
title_short Natural occurrence of nivalenol and mycotoxigenic potential of <i>Fusarium graminearum</i> strains in wheat affected by head blight in Argentina
title_full Natural occurrence of nivalenol and mycotoxigenic potential of <i>Fusarium graminearum</i> strains in wheat affected by head blight in Argentina
title_fullStr Natural occurrence of nivalenol and mycotoxigenic potential of <i>Fusarium graminearum</i> strains in wheat affected by head blight in Argentina
title_full_unstemmed Natural occurrence of nivalenol and mycotoxigenic potential of <i>Fusarium graminearum</i> strains in wheat affected by head blight in Argentina
title_sort natural occurrence of nivalenol and mycotoxigenic potential of <i>fusarium graminearum</i> strains in wheat affected by head blight in argentina
publishDate 2008
url http://sedici.unlp.edu.ar/handle/10915/36792
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