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Occurrence of Fusarium species and mycotoxins in Swiss oats—Impact of cropping factors


Schöneberg, Torsten; Jenny, Eveline; Wettstein, Felix E; Bucheli, Thomas D; Mascher, Fabio; Bertossa, Mario; Musa, Tomke; Seifert, Keith; Gräfenhan, Tom; Keller, Beat; Vogelgsang, Susanne (2018). Occurrence of Fusarium species and mycotoxins in Swiss oats—Impact of cropping factors. European Journal of Agronomy, 92:123-132.

Abstract

Between 2013 and 2015, 325 samples of commercially grown oats were collected in Switzerland along with data on respective cropping factors. The incidence of different Fusarium species was determined using a seed health test and quantitative PCR was used to measure the amount of F. poae and F. langsethiae DNA. Mycotoxins were quantified by LC–MS/MS. Among all Fusarium species, F. poae was found to be dominant whereas T-2/HT-2 toxins were the major mycotoxins. Samples from fields with the previous crop cereal showed the highest concentrations of T-2/HT-2. Higher amounts of nivalenol (NIV) and T-2/HT-2 were detected in samples from fields with reduced tillage compared with samples from ploughed fields. Furthermore, we observed a higher contamination with NIV and T-2/HT-2 in winter sown varieties compared with spring sown varieties. Results from the current study are highly valuable to develop recommendations for optimised cropping systems that reduce the risk of mycotoxin contamination of oat grains.

Abstract

Between 2013 and 2015, 325 samples of commercially grown oats were collected in Switzerland along with data on respective cropping factors. The incidence of different Fusarium species was determined using a seed health test and quantitative PCR was used to measure the amount of F. poae and F. langsethiae DNA. Mycotoxins were quantified by LC–MS/MS. Among all Fusarium species, F. poae was found to be dominant whereas T-2/HT-2 toxins were the major mycotoxins. Samples from fields with the previous crop cereal showed the highest concentrations of T-2/HT-2. Higher amounts of nivalenol (NIV) and T-2/HT-2 were detected in samples from fields with reduced tillage compared with samples from ploughed fields. Furthermore, we observed a higher contamination with NIV and T-2/HT-2 in winter sown varieties compared with spring sown varieties. Results from the current study are highly valuable to develop recommendations for optimised cropping systems that reduce the risk of mycotoxin contamination of oat grains.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Plant and Microbial Biology
Dewey Decimal Classification:580 Plants (Botany)
Uncontrolled Keywords:Agronomy and Crop Science, Plant Science, Soil Science
Language:English
Date:1 January 2018
Deposited On:10 Jan 2019 12:42
Last Modified:11 Jan 2019 08:35
Publisher:Elsevier
ISSN:1161-0301
OA Status:Closed
Publisher DOI:https://doi.org/10.1016/j.eja.2017.09.004

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