A non-toxigenic Aspergillus flavus strain prevents the spreading of Fusarium verticillioides and fumonisins in maize

T A Reis; T D Oliveira; P Zorzete; P Faria; B Corrêa

doi:10.1016/j.toxicon.2020.04.091

A non-toxigenic Aspergillus flavus strain prevents the spreading of Fusarium verticillioides and fumonisins in maize

Toxicon. 2020 Jul 15:181:6-8. doi: 10.1016/j.toxicon.2020.04.091. Epub 2020 Apr 15.

Authors

T A Reis¹, T D Oliveira², P Zorzete³, P Faria⁴, B Corrêa²

Affiliations

¹ Laboratório de Micotoxinas, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil. Electronic address: [email protected].
² Laboratório de Micotoxinas, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil; Departamento de Dermatologia, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil.
³ Laboratório de Micotoxinas, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil.
⁴ Biosphere Comércio e Insumos Agrícolas, Cravinhos, São Paulo, Brazil.

PMID: 32304674
DOI: 10.1016/j.toxicon.2020.04.091

Abstract

We evaluated Fusarium verticillioides and fumonisin contamination in maize samples after application of a non-aflatoxigenic Aspergillus flavus strain in the field. The sampling was performed 150 days after planting. The results showed a reduction in F. verticillioides frequency, as well as in fumonisin levels when samples were obtained from field areas treated with non-aflatoxigenic A. flavus strain. These results suggested a competition for substrate or space between fungi reducing the frequency of F. verticillioides and, consequently, fumonisin production.

Keywords: Biocontrol; Fungi; Maize; Mycotoxins.

MeSH terms

Aspergillus flavus*
Fumonisins / toxicity*
Fusarium*
Mycotoxins
Zea mays*

Substances

Fumonisins
Mycotoxins