Wheat is one of the most important of the cereal crops worldwide.Fusarium culmorum, along withFusarium graminearum, the prevalent causal agents of Fusarium head blight (FHB) and Fusarium Root Rot (FRR), have hindered global wheat production since the domestication of the crop and continue to threaten the world's wheat supply by producing mycotoxins, particularly deoxynivalenol, during growth in plant tissue. The control and the reduction of such contaminations are expected to be of high priority for the cereal production chain.The first chapter provides some insights on the relationship between chemotype, haplotype and geographical distribution of TunisianFusariumpopulations that may prove useful to reduce the contamination risk of food or feed in the Mediterranean regions.The second chapter reports the identification of a novelF. culmorumgene (FcRav2) with ROGDI domain by usingmimp1-mediated insertional mutagenesis approach, allowing a greater understanding of the role and function of this gene with respect to the pathogenicity and the mycotoxigenic potential ofF. culmorum.Fusariumspp. are widely spread in nature as plant pathogens, but are also able to cause opportunistic fungal infections in humans. Therefore, chapters 3 and 4 represent a contribution to the development of natural occurring compounds able to act against noxiousFusariumdiseases by the inhibition of the hyphal growth and/or the inhibition of the deoxynivalenol production. Although recent investigations have reported improved outcomes, the definition of optimal treatments remains controversial, thereby the present study could be taken into consideration in the frame of an open field application of such plant-derived fungicides.

Innovative solutions for the containment of Fusarium mycotoxins on durum wheat / Oufensou, Safa. - (2020).

Innovative solutions for the containment of Fusarium mycotoxins on durum wheat

OUFENSOU, Safa
2020-01-01

Abstract

Wheat is one of the most important of the cereal crops worldwide.Fusarium culmorum, along withFusarium graminearum, the prevalent causal agents of Fusarium head blight (FHB) and Fusarium Root Rot (FRR), have hindered global wheat production since the domestication of the crop and continue to threaten the world's wheat supply by producing mycotoxins, particularly deoxynivalenol, during growth in plant tissue. The control and the reduction of such contaminations are expected to be of high priority for the cereal production chain.The first chapter provides some insights on the relationship between chemotype, haplotype and geographical distribution of TunisianFusariumpopulations that may prove useful to reduce the contamination risk of food or feed in the Mediterranean regions.The second chapter reports the identification of a novelF. culmorumgene (FcRav2) with ROGDI domain by usingmimp1-mediated insertional mutagenesis approach, allowing a greater understanding of the role and function of this gene with respect to the pathogenicity and the mycotoxigenic potential ofF. culmorum.Fusariumspp. are widely spread in nature as plant pathogens, but are also able to cause opportunistic fungal infections in humans. Therefore, chapters 3 and 4 represent a contribution to the development of natural occurring compounds able to act against noxiousFusariumdiseases by the inhibition of the hyphal growth and/or the inhibition of the deoxynivalenol production. Although recent investigations have reported improved outcomes, the definition of optimal treatments remains controversial, thereby the present study could be taken into consideration in the frame of an open field application of such plant-derived fungicides.
2020
Fusarium; Mycotoxins; Durum wheat; Natural compounds
Innovative solutions for the containment of Fusarium mycotoxins on durum wheat / Oufensou, Safa. - (2020).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11388/250201
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