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Metabolomic Aspects of Conservative and Resistance-Related Elements of Response to Fusarium culmorum in the Grass Family


[ 1 ] Instytut Matematyki, Wydział Automatyki, Robotyki i Elektrotechniki, Politechnika Poznańska | [ 2 ] Instytut Genetyki Roślin, Polska Akademia Nauk | [ P ] employee

Scientific discipline (Law 2.0)

[7.4] Mathematics

Year of publication


Published in


Journal year: 2022 | Journal volume: vol. 11 | Journal number: iss. 20

Article type

scientific article

Publication language


  • FHB
  • plant metabolomic
  • plant–pathogen interaction
  • barley
  • wheat
  • Brachypodium distachyon
  • pathway enrichment

EN Background: Fusarium head blight (FHB) is a serious fungal disease affecting crop plants, causing substantial yield reductions and the production of mycotoxins in the infected grains. Achieving progress in the breeding of crops with increased resistance and maintaining a high yield is not possible without a thorough examination of the molecular basis of plant immunity responses. Methods: LC-MS-based metabolomics approaches powered by three-way ANOVA and the selection of differentially accumulated metabolites (DAMs) were used for studying plant immunity. A correlation network and functional enrichment analysis were conducted on grains of barley and wheat genotypes that were resistant or susceptible to FHB, as well as on the model grass Brachypodium distachyon (Bd), as this is still poorly understood at the metabolomic level. Results: We selected common and genotype-specific DAMs in response to F. culmorum inoculation. The immunological reaction at the metabolomic level was strongly diversified between resistant and susceptible genotypes. DAMs that were common to all tested species from the porphyrin, flavonoid, and phenylpropanoid metabolic pathways were highly correlated, reflecting conservativeness in the FHB response in the Poaceae family. Resistance-related DAMs belonged to different structural classes, including tryptophan-derived metabolites, pyrimidines, the amino acids proline and serine, as well as phenylpropanoids and flavonoids. The physiological response to F. culmorum of Bd was close to that of barley and wheat genotypes; however, metabolomic changes were strongly diversified. Conclusions: Combined targeted and untargeted metabolomics provides comprehensive knowledge about significant elements of plant immunity that have the potential to be molecular biomarkers of enhanced resistance to FHB in the grass family. Thorough examination of the Bd metabolome in juxtaposition with diversified genotypes of barley and wheat facilitated its use as a model grass for plant–microbe interaction.

Pages (from - to)

3213-1 - 3213-29





article number: 3213

License type

CC BY (attribution alone)

Open Access Mode

open journal

Open Access Text Version

final published version

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