Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Agronomic Factors Influencing the Scale of Fusarium Mycotoxin Contamination of Oats

Version 1 : Received: 17 October 2021 / Approved: 19 October 2021 / Online: 19 October 2021 (10:18:56 CEST)

A peer-reviewed article of this Preprint also exists.

Kolawole, O.; De Ruyck, K.; Greer, B.; Meneely, J.; Doohan, F.; Danaher, M.; Elliott, C. Agronomic Factors Influencing the Scale of Fusarium Mycotoxin Contamination of Oats. J. Fungi 2021, 7, 965. Kolawole, O.; De Ruyck, K.; Greer, B.; Meneely, J.; Doohan, F.; Danaher, M.; Elliott, C. Agronomic Factors Influencing the Scale of Fusarium Mycotoxin Contamination of Oats. J. Fungi 2021, 7, 965.

Journal reference: J. Fungi 2021, 7, 965
DOI: 10.3390/jof7110965

Abstract

Seven agronomic factors (crop season, farming system, harvest date, moisture, county, oat variety, and previous crop) were recorded for 202 oat crops grown across Ireland, and samples were analysed by LC-MS/MS for four major Fusarium mycotoxins: deoxynivalenol (DON), zearalenone (ZEN), T-2 toxin and HT-2 toxin. Type A trichothecenes were present in 62% of crops, with 7.4% exceeding European regulatory limits. DON (6.4%) and ZEN (9.9%) occurrences were rela-tively infrequent, though one and three samples were measured over their set limits respectively. Overall, the type of farming system and the previous crop were the main factors identified to significantly influence mycotoxin prevalence or concentration. Particularly, adherence to an organic farming system and growing oats after a previous crop of grass were found to decrease contamination by type A trichothecenes. These are important findings and may provide valuable insights for many other types of cereals crops as Europe moves towards a much greater organic based food system.

Keywords

Mycotoxins; Agricultural Practices; Mycotoxigenic Fungi; Fusarium; Oats; Cereals; Statistical Analysis; Agronomic

Subject

BIOLOGY, Agricultural Sciences & Agronomy

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