A Microbial Fermentation Mixture Reduces Fusarium Head Blight and Promotes Grain Weight but does not impact Septoria tritici blotch

Tony Twamley, Mark Gaffney, Angela Feechan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)
27 Downloads (Pure)

Abstract

Fusarium graminearum and Zymoseptoria tritici cause economically important diseases of wheat. F. graminearum is one of the primary causal agents of Fusarium head blight (FHB) and Z. tritici is the causal agent of Septoria tritici blotch (STB). Alternative control methods are required in the face of fungicide resistance and EU legislation which seek to cut pesticide use by 2030. Both fungal pathogens have been described as either hemibiotrophs or necrotrophs. A microbial fermentation-based product (MFP) was previously demonstrated to control the biotrophic pathogen powdery mildew, on wheat. Here we investigated if MFP would be effective against the non-biotrophic fungal pathogens of wheat, F. graminearum and Z. tritici. We assessed the impact of MFP on fungal growth, disease control and also evaluated the individual constituent parts of MFP. Antifungal activity towards both pathogens was found in vitro but MFP only significantly decreased disease symptoms of FHB in planta. In addition, MFP was found to improve the grain number and weight, of uninfected and F. graminearum infected wheat heads.

Original languageEnglish
Pages (from-to)203-219
Number of pages17
JournalEuropean Journal of Plant Pathology
Volume162
Issue number1
Early online date19 Oct 2021
DOIs
Publication statusPublished - Jan 2022

Keywords

  • Fusarium graminearum
  • Microbial fermentation mixture
  • Wheat
  • Zymoseptoria tritici

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Plant Science
  • Horticulture

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