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Título : | FUSARIUM VERTICILLIOIDES Y FUMONISINAS EN MAÍZ COSECHADO EN PEQUEÑAS EXPLOTACIONES Y CONUCOS DE ALGUNOS ESTADOS DE VENEZUELA |
Autor : | Mazzani, Claudio Luzón, Odalís Chavarri, Marleny Fernández, Morella Hernández, Natacha |
Palabras clave : | Fusarium verticilloides Fumonisinas Maíz |
Fecha de publicación : | 6-Jun-2014 |
Resumen : | Mazzani, C., Luzón, O., Chavarri, M., Fernández, M. and Hernández,
N. 2008. Fusarium verticillioides and fumonisins in maíze harvested
at small farms and “conucos” of some States of Venezuela. Fitopatol.
Venez. 21: 18-22.
Occurrence of F. verticillioides, fumonisins, and others molds were
evaluated in 41 samples of yellow and white maize grains. Maize was
harvested during 2005–2006, at small farms and “conucos” at Las
Peñitas Aragua State, Manuare Carabobo State, Macapo Cojedes
State, El Socorro-El Sombrero Guárico State, Turén Portuguesa State
and Sabana de Parra Yaracuy State. The incidence of F. verticillioides
was estimated placing disinfected kernels on a malt-salt-agar medium.
Fumonisins contents were quantified by specific immunoassay. An
opinion poll was carried out to the agricultural in order to know aspects
related to the culture, harvest and storage of the maize grains. F.
verticillioides incidence was high (>30%) in yellow maize grains of
Guárico, Cojedes and Carabobo states, and in white maize grains of
Cojedes, Carabobo and Yaracuy states. The incidence was
intermediate (15-30%) in yellow maize grains of Aragua and Yaracuy
states, and in white maize grains of Portuguesa and Aragua states.
Low incidence (<15%) was found in the only one sample of yellow
maize grains of the Portuguesa state, and in white maize grains of
Aragua and Portuguesa states. Fumonisins contamination was found
in many samples (56.1%). High contents of fumonisins (>1 μg/g) was
found in yellow corn grains of Guárico and Carabobo states (3.1 y
1.6 μg/g, respectively) and in white corn grains in the Carabobo state
(2.4 μg/g). Other species of toxigenic molds also were identified. Lack
of knowledge about toxigenic molds and mycotoxins, and deficient
agronomic management were determined at small farms and
“conucos” of Aragua, Carabobo and Cojedes states, where exists high
risk to ingest fumonisins in the rural population of scarce resource. |
Descripción : | Se identificaron
otras especies de mohos potencialmente toxigénicos y fumonisinas en las muestras evaluadas |
URI : | http://hdl.handle.net/10872/6532 |
ISSN : | 0798-0035 |
Aparece en las colecciones: | Artículos Publicados
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