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General Information

Document type
  • Peer-reviewed journal article
Study Type
  • field trial
GE organism
  • maize
GE trait
  • insect resistance
  • Argentina


Safety for consumption
  • positive effect

Fungal and mycotoxin contamination in Bt maize and non-Bt maize grown in Argentina

Barros, G; Magnoli, C; Reynoso, MM; Ramirez, ML; Farnochi, MC; Torres, A; Dalcero, M; Sequeira, J; Rubinstein, C; Chulze, S
World Mycotoxin Journal. 2009 January. 2(1):53-60

Link to full text (journal may charge for access)

DOI: 10.3920/WMJ2008.1029 ISSN: 1875-0796


A Bt maize hybrid and its non-transgenic counterpart harvested during 2002/2003 and 2003/2004 harvest seasons from different locations within the maize-growing area in Argentina were compared for fungal and mycotoxin contamination. Fusarium species were the most prevalent on both genotypes with an isolation frequency >60% across all locations. The percentage of infection was lower in Bt maize than in non-Bt maize (P<0.05). There were no statistical differences in infection percentage due to genotype, fungicide treatment and their interactions. Fumonisins were detected in all of the samples from all locations and genotypes. Total fumonisin levels (fumonisins B1, B2 and B3) in the Bt and the non-Bt hybrid were significantly different (P<0.001), with lower toxin levels in the Bt maize in all locations but one evaluated during the two harvest season. There was no significant difference in deoxynivalenol levels between Bt and non-Bt maize. Application of the fungicide tebuconazole did not alter either the infection or the toxin levels in the Bt and non-Bt maize hybrid.


transgenic maize, fumonisin, deoxynivalenol, aflatoxin


Funding source
  • Monsanto Argentina
Funding country
  • Argentina
Funding type
  • industry: same

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Cite this study


Barros, G, C Magnoli, MM Reynoso, ML Ramirez, MC Farnochi, A Torres, M Dalcero, J Sequeira, C Rubinstein, S Chulze. "Fungal and mycotoxin contamination in Bt maize and non-Bt maize grown in Argentina." World Mycotoxin Journal 2.1 (2009): 53-60. Web. 24 Apr. 2024.


Barros, G., Magnoli, C., Reynoso, MM., Ramirez, ML., Farnochi, MC., Torres, A., Dalcero, M., Sequeira, J., Rubinstein, C., & Chulze, S. (2009). Fungal and mycotoxin contamination in Bt maize and non-Bt maize grown in Argentina. World Mycotoxin Journal, 2(1), 53-60. doi:10.3920/WMJ2008.1029

Please verify citations before use, citations are automatically generated based on information stored within the GENERA database and therefore may or may not be correct.