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Toxins 2017, 9(4), 120; doi:10.3390/toxins9040120

Changes in the Fusarium Head Blight Complex of Malting Barley in a Three-Year Field Experiment in Italy

1
Department of Agricultural, Food and Environmental Sciences, University of Perugia, Borgo XX Giugno 74, 06121 Perugia, Italy
2
Department of Agricultural Sciences, Alma Mater Studiorum University of Bologna, Viale G. Fanin 44, 40127 Bologna, Italy
3
Bioengineering Department, Université Libre de Tunis, 30 Av. Kheireddine Pacha, 1002 Tunis, Tunisia
Current address: Regional Field Crop Research Center of Beja (CRRGC), Route de Tunis, km 5, 9000 Béja, Tunisia
*
Author to whom correspondence should be addressed.
Academic Editor: Gerhard Adam
Received: 6 February 2017 / Revised: 23 March 2017 / Accepted: 24 March 2017 / Published: 29 March 2017
View Full-Text   |   Download PDF [1978 KB, uploaded 29 March 2017]   |  

Abstract

In this study, conducted for three years on eleven malting barley varieties cultivated in central Italy, the incidence of different mycotoxigenic fungal genera, the identification of the Fusarium species associated with the Fusarium Head Blight (FHB) complex, and kernels contamination with deoxynivalenol (DON) and T-2 mycotoxins were determined. The influence of climatic conditions on Fusarium infections and FHB complex composition was also investigated. Fusarium species were always present in the three years and the high average and maximum temperatures during anthesis mainly favored their occurrence. The FHB complex was subject to changes during the three years and the main causal agents were F. poae, F. avenaceum, F. tricinctum and F. graminearum, which, even if constantly present, never represented the principal FHB agent. The relative incidence of Fusarium species changed because of climatic conditions occurring during the seasons. The FHB complex was composed of many different Fusarium species and some of them were associated with a specific variety and/or with specific weather parameters, indicating that the interaction between a certain plant genotype and climatic conditions may influence the presence of Fusarium spp. causing infections. With regard to mycotoxin contamination, T-2 toxin, in some cases, was found in kernels at levels that exceeded EU recommended values. View Full-Text
Keywords: Fusarium; barley; mycotoxins; DON; T-2 toxin; FHB complex Fusarium; barley; mycotoxins; DON; T-2 toxin; FHB complex
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Beccari, G.; Prodi, A.; Tini, F.; Bonciarelli, U.; Onofri, A.; Oueslati, S.; Limayma, M.; Covarelli, L. Changes in the Fusarium Head Blight Complex of Malting Barley in a Three-Year Field Experiment in Italy. Toxins 2017, 9, 120.

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