Biocontrol of Fusarium verticillioides using organic amendments and their actinomycete isolates

Nguyen Phuong-Anh, Strub Caroline, Durand Noel, Alter Pascaline, Fontana Angélique, Schorr-Galindo Sabine. 2018. Biocontrol of Fusarium verticillioides using organic amendments and their actinomycete isolates. Biological Control, 118 : pp. 55-66.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
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Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Abstract : In a sustainable development concern, the agricultural practices notably those to control the pathogenic and/or mycotoxigenic fungi that maintain the quality and the abundance of crops with respecting the ecosystems and public health are indispensable. Our study focuses on evaluating the biocontrol potential of the actinomycete microflora of some organic amendments against the phytopathogenic and mycotoxigenic Fusarium verticillioides. The inhibitory effect was assessed in term of growth and mycotoxin production (fumonisin FB1 and FB2) of F. verticillioides in the presence of amended soils and selected antagonist agents from the amendments. Results demonstrated that the amended soils with different organic amendments exhibited a higher inhibition rate of Fusarium verticillioides growth than the reference soil. They were able to inhibit the fungal pigment and spore productions which are the major mean of survival and dispersion of this fungus. The fumonisin production was strongly reduced by the metabolites produced by the amended soils' microbiota, up to 68.7% and 92.5% for FB1 and FB2 respectively. Actinomycete strains isolated from these amendments were identified as Streptomyces and were also tested for their antifungal potential. The fungal growth was reduced up to more than 60% in the presence of extracellular metabolites of several Streptomyces strains. In confrontation assays, most of the Streptomyces strains inhibited strongly both fungal growth and fumonisin production. The FB1 and FB2 amounts were decreased at best, by up to 87.5% and 98.2% respectively, depending on the actinomycete strains and fungal culture time. These results are promising for the use of these biocontrol agents, and especially some actinomycete strains, as tools to reduce fumonisin contamination in cereal crops and derived products.

Mots-clés géographiques Agrovoc : Languedoc-Roussillon

Mots-clés libres : Fusarium verticillioides, Fumonisins, Biocontrol, Organic amendments, Actinomycetes

Classification Agris : H20 - Plant diseases
Q03 - Food contamination

Champ stratégique Cirad : Axe 4 (2014-2018) - Santé des animaux et des plantes

Auteurs et affiliations

  • Nguyen Phuong-Anh, Université de Montpellier (FRA) - auteur correspondant
  • Strub Caroline, Université de Montpellier (FRA)
  • Durand Noel, CIRAD-PERSYST-UMR Qualisud (FRA) ORCID: 0000-0003-1627-6848
  • Alter Pascaline, CIRAD-PERSYST-UMR Qualisud (FRA)
  • Fontana Angélique, UM2 (FRA)
  • Schorr-Galindo Sabine, UM2 (FRA)

Source : Cirad-Agritrop (

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