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Investigation on high polyphenolic wheat genotypes resistance to Fusarium Head Blight (FHB)

Authors: MICCOLI Cecilia; FELICI Linda; FRANCESCONI Sara; SESTILI Francesco; VITALI Matteo; BALESTRA Giorgio Mariano;

Investigation on high polyphenolic wheat genotypes resistance to Fusarium Head Blight (FHB)

Abstract

Fusarium head blight (FHB) is one of the most harmful diseases affecting cereal crops. Polyphenols provide a protective effect against biotic and abiotic stresses. It is therefore interesting to focus on genotypes with a high concentration of these compounds in the aleurone and pericarp. This research examines the interaction between five different pigmented wheat cultivars (Purendo, Skorpion, Rosso, Vanilnoir and Indigo) and the fungal pathogen Fusarium graminearum. Data obtained from phytopathological experiments and AUDPC calculation, demonstrate that blue aleurone genotypes are highly sensitive to FHB while genotypes with purple pericarp are less sensitive. Notably, Vanilnoir demonstrated a disease incidence identical to the resistant control Sumai3 (less than 10% after 21 days of infection). FDK evaluation and the total phenolic content showed no differences between genotypes. Furthermore, the quantification of the fungal genome by RT-qPCR showed that the pathogen had a lower diffusion in the Vanilnoir cultivar (compared to the more vulnerable varieties such as Skorpion), suggesting the involvement of a type II resistance mechanism. As a further level of investigation, a transcriptomic (mRNAseq) experiment was performed on the Vanilnoir and Rosso cultivars with the aim of identifying genes involved in the mechanisms of SAR induction at 2 days after infection.

Country
Italy
Related Organizations
Keywords

Fusarium head blight; Polyphenols; pigmented wheat cultivars

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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