Investigating Metabolic Plant Response Toward Deoxynivalenol Accumulation in Four Winter Cereals

Overview

Journal J Agric Food Chem

Specialties Chemistry
Nutritional Sciences

Date 2024 Feb 5

PMID 38315448

Authors

Laura Righetti

Francesca Vanara

Renato Bruni

Claudia Sardella

Massimo Blandino

Chiara DallAsta

Affiliations

Soon will be listed here.

Abstract

Deoxynivalenol (DON) is a phytotoxic agent supporting the spread of fungal diseases in cereals worldwide, i.e., fusarium head blight. It is known that DON accumulation may elicit changes in plant secondary metabolites in response to pathogen attack. This study maps the changes in selected secondary metabolite classes upon DON contamination occurring in fifteen spp. genotypes, among them emmer, spelt, and soft wheat, and 2 tritordeum varieties, cultivated in two different sites and over two harvest years. The main phenolic classes (i.e., alkylresorcinols, soluble, and cell-wall bound phenolic acids) were targeted analyzed, while changes in the lipidome signature were collected through untargeted HRMS experiments. The results, obtained across multiple species and in open fields, confirmed the modulation of first-line biological pathways already described in previous studies involving single cereal species or a limited germplasm, thus reinforcing the involvement of nonspecific chemical defenses in the plant response to pathogen attack.

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