Reaction of winter wheat (Triticum aestivum L.) cultivars to infection with Fusarium spp. - mycotoxin contamination in grain and chaff

Piotr Golinski (1) , Agnieszka Waskiewicz (1) , Halina Wisniewska (2) , Irena Kiecana (3) , Elzbieta Mielniczuk (3) , Karolina Gromadzka (1) , Marian Kostecki (1) , Jan Bocianowski (4) , Ewa Rymaniak (5)

1 Department of Chemistry
2 Institute of Plant Genetics
3 Department of Phytopathology
4 Department of Mathematical and Statistical Methods
5 Department of Chemisty

The aim of this study was to compare susceptibility of winter wheat (Triticum aestivum L.) cultivars to Fusarium Head blight - FHB and accumulation of mycotoxins in kernels and chaff, in different climate conditions in two locations Cerekwica near Poznan (Central West Poland) and Sitaniec, near Zamosc, Lublin region (South East Poland). Very high variation was found in concentration of analyzed mycotoxins (zearalenone-ZEA, nivalenol-NIV, deoxynivalenol-DON and moniliformin-MON) in examined fractions (Fusarium-damaged kernels-FDK and healthy looking kernels-HLK) and in chaff for individual cultivars in both locations. Moreover, in most cases significantly higher concentrations of investigated toxins were recorded in wheat coming from the area of Lublin than in that from the area of Poznan (p0.05). The highest Fusarium infection rate as well as mycotoxin biosynthesis level were observed in the Lublin location with percentage of the FDK fraction in the range from 8.1 to 81.6. In this region ZEA concentration (g g-1) after inoculation with F. culmorum and F. graminearum ranged from 0.02 to 0.48 and 0.32-1.04, respectively. In the Poznan area the toxin concentrations were considerably lower, ranging from 0.01 to 0.10 and from 0.03 to 0.13 for both isolates, respectively. The concentration of DON was significantly higher when compared to ZEA and NIV levels. The levels of MON accumulation (g g-1) in the FDK fraction were between 0.14 and 1.73 (Poznan area) and ND - 2.51 (Lublin area). F. avenaceum infection rate ranged between 7 and 35% in the samples where the toxin was detected.

Mots clés: Life Sciences

Piotr Golinski, Agnieszka Waskiewicz, Halina Wisniewska, Irena Kiecana, Elzbieta Mielniczuk, et al.. Reaction of winter wheat (Triticum aestivum L.) cultivars to infection with Fusarium spp. - mycotoxin contamination in grain and chaff. Food Additives and Contaminants, 2010, 27 (07), pp.1015-1024. ⟨10.1080/19440041003702208⟩. ⟨hal-00598941⟩