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Toxins 2016, 8(10), 301; doi:10.3390/toxins8100301

Higher Fusarium Toxin Accumulation in Grain of Winter Triticale Lines Inoculated with Fusarium culmorum as Compared with Wheat

1
Department of Plant Pathology, Plant Breeding and Acclimatization Institute-National Research Institute, Radzików, 05-870 Blonie, Poland
2
Institute of Plant Genetics, Polish Academy of Sciences, 34 Strzeszynska str., 60-479 Poznan, Poland
This paper is an extended version of paper published in the conference: 8th International Triticale Symposium, Ghent, Belgium, 10–14 June 2013.
*
Author to whom correspondence should be addressed.
Academic Editor: Paola Battilani
Received: 1 September 2016 / Revised: 8 October 2016 / Accepted: 11 October 2016 / Published: 18 October 2016
(This article belongs to the Collection Understanding Mycotoxin Occurrence in Food and Feed Chains)
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Abstract

Resistance to Fusarium head blight in 32 winter triticale and 34 winter wheat accessions was evaluated. Triticale and wheat were sown in field experiments in two locations. At the time of flowering, heads were inoculated with three Fusarium culmorum isolates. Fusarium head blight index was scored and after the harvest percentage of Fusarium damaged kernels was assessed. Grain was analysed for type B trichothecenes (deoxynivalenol and derivatives, nivalenol) and zearalenone (ZEN) content. The average Fusarium head blight indexes were 28.0% for wheat and 19.2% for triticale accessions. The percentage of Fusarium damaged kernels was also higher for wheat and came to 55.6%, while for triticale this figure was 40.2%. The average content of deoxynivalenol (DON) for wheat amounted to 11.65 mg/kg and was lower than the result for triticale which was 14.12 mg/kg. The average contents of nivalenol were similar in both cereals: 4.13 mg/kg and 5.19 mg/kg for wheat and triticale respectively. Considerable amounts of DON derivatives in the cereals were also detected. The ZEN content in the grain was 0.60 mg/kg for wheat and 0.66 mg/kg for triticale. Relationships between Fusarium head blight index, Fusarium damaged kernels and mycotoxin contents were statistically significant for wheat and mostly insignificant for triticale. Triticale proved to have less infected heads and kernels than wheat. However, the content of type B trichothecenes was higher in triticale grain than in wheat grain. View Full-Text
Keywords: Fusarium; triticale; wheat; deoxynivalenol; zearalenone Fusarium; triticale; wheat; deoxynivalenol; zearalenone
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Góral, T.; Wiśniewska, H.; Ochodzki, P.; Walentyn-Góral, D. Higher Fusarium Toxin Accumulation in Grain of Winter Triticale Lines Inoculated with Fusarium culmorum as Compared with Wheat. Toxins 2016, 8, 301.

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