Associations between Fusarium species and mycotoxins in oats and spring wheat from farmers fields in Norway over a six-year period
| Autor: | Heidi Udnes Aamot, S.S. Klemsdal, Ingerd Skow Hofgaard, Guro Brodal, T. Torp, Veronica M.T. Lattanzio, T. Van der Lee, M. Jestoi, C. Waalwijk |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Fusarium Fusarium avenaceum deoxynivalenol HT-2 Biology Toxicology 01 natural sciences 03 medical and health sciences chemistry.chemical_compound Bioint Diagnostics Spring (hydrology) Fusarium poae Fusarium culmorum Fusarium langsethiae Mycotoxin Bioint Diagnostics Food Safety & Phyt. Research geography geography.geographical_feature_category Public Health Environmental and Occupational Health biology.organism_classification Cereal grain Fusarium graminearum Food Safety & Phyt. Research 030104 developmental biology Agronomy chemistry EPS 010606 plant biology & botany Food Science |
| Zdroj: | World Mycotoxin Journal 9 (2016) 3 World Mycotoxin Journal, 9(3), 365-378 |
| ISSN: | 1875-0710 |
| Popis: | During the last ten years, Norwegian cereal grain industry has experienced large challenges due to Fusarium spp. and Fusarium mycotoxin contamination of small-grained cereals. To prevent severely contaminated grain lots from entering the grain supply chain, it is important to establish surveys for the most prevalent Fusarium spp. and mycotoxins. The objective of our study was to quantify and calculate the associations between Fusarium spp. and mycotoxins prevalent in oats and spring wheat. In a 6-year period from 2004-2009, 178 grain samples of spring wheat and 289 samples of oats were collected from farmers’ fields in South East Norway. The grains were analysed for 18 different Fusarium-mycotoxins by liquid chromatography – mass spectrometry. Generally, the median mycotoxin levels were higher than reported in Norwegian studies covering previous years. The DNA content of Fusarium graminearum, Fusarium culmorum, Fusarium langsethiae, Fusarium poae and Fusarium avenaceum were determined by quantitative PCR. We identified F. graminearum as the main deoxynivalenol (DON) producer in oats and spring wheat, and F. langsethiae as the main HT-2 and T-2-toxins producer in oats. No association was observed between quantity of F. graminearum DNA and quantity of F. langsethiae DNA nor for their respective mycotoxins, in oats. F. avenaceum was one of the most prevalent Fusarium species in both oats and spring wheat. The following ranking of Fusarium species was made based on the DNA concentrations of the Fusarium spp. analysed in this survey (from high to low): F. graminearum = F. langsethiae = F. avenaceum > F. poae > F. culmorum (oats); F. graminearum = F. avenaceum > F. culmorum > F. poae = F. langsethiae (spring wheat). Our results are in agreement with recently published data indicating a shift in the relative prevalence of Fusarium species towards more F. graminearum versus F. culmorum in Norwegian oats and spring wheat. |
| Databáze: | OpenAIRE |
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