Prevalence of fumonisin-producing Fusarium species in Brazilian corn grains

The aims of this study were to perform morphological and molecular characterization of Fusarium species within the Liseola section isolated from corn grains from different geographic regions in Brazil, and to evaluate their potential for fumonisins production. The results showed that Fusarium vertic...

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Bibliographic Details
Published in:Crop protection 2014-11, Vol.65, p.232-237
Main Authors: Lanza, Fabrício Eustáquio, Zambolim, Laércio, Veras da Costa, Rodrigo, Vieira Queiroz, Valéria Aparecida, Cota, Luciano Viana, Dionísia da Silva, Dagma, Coelho de Souza, André Gomes, Fontes Figueiredo, José Edson
Format: Article
Language:English
Subjects:
Fusarium spp
Mycotoxins
Species identification
Zea mays
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Summary:The aims of this study were to perform morphological and molecular characterization of Fusarium species within the Liseola section isolated from corn grains from different geographic regions in Brazil, and to evaluate their potential for fumonisins production. The results showed that Fusarium verticillioides is the predominant species (99%) associated with corn grains, and other toxigenic species, Fusarium proliferatum, was incidental in Brazilian corn. Although there was a high variability in the total fumonisin production among the isolates (0.01–2.39 μg g−1), all fifty isolates analyzed produce fumonisins. The level of total fumonisin production was not correlated with the geographic origin of the isolates. •We identify Fusarium spp. occurring in Brazilian corn-planting areas.•We evaluate the potential for fumonisins production by Fusarium verticillioides.•F. verticillioides is prevalent and Fusarium proliferatum is incidental in Brazilian corn.•The fumonisins production potential was high variable among fifty selected isolates.•The fumonisins production was not correlated to geographic origin of the isolates.
ISSN:0261-2194
1873-6904
DOI:10.1016/j.cropro.2014.08.003