Factors influencing deoxynivalenol accumulation in small grain cereals

Stephen N. Wegulo

Research output: Contribution to journalReview articlepeer-review

86 Scopus citations

Abstract

Deoxynivalenol (DON) is a mycotoxin produced by the plant pathogenic fungi Fusarium graminearum and F. culmorum. These and other closely related fungi cause a disease known as Fusarium head blight (FHB) in small grain cereals. Other mycotoxins produced by FHB-causing fungi include nivalenol, T-2 toxin, and zearalenone. Ingestion of mycotoxin-contaminated food and feed can lead to toxicosis in humans and animals, respectively. DON is the predominant and most economically important of these mycotoxins in the majority of small grain-producing regions of the world. This review examines the factors that influence DON accumulation in small grain cereals from an agricultural perspective. The occurrence and economic importance of FHB and DON in small grain cereals, epidemiological factors and cereal production practices that favor FHB development and DON accumulation in grain under field conditions, and regulatory/advisory standards for DON in food and feed are discussed. This information can be used to develop strategies that reduce DON accumulation in grain before harvest and to mitigate the human and animal health risks associated with DON contamination of food and feed.

Original languageEnglish (US)
Pages (from-to)1157-1180
Number of pages24
JournalToxins
Volume4
Issue number11
DOIs
StatePublished - Nov 2012

Keywords

  • Chemotype
  • Cultivar resistance
  • Deoxynivalenol
  • Environmental factors
  • Fungicide application
  • Fusarium head blight
  • Growth stage
  • Inoculum dosage
  • Lodging
  • Pathogen aggressiveness
  • Regulatory/advisory standards
  • Small grain cereals
  • Tillage system

ASJC Scopus subject areas

  • Toxicology
  • Health, Toxicology and Mutagenesis

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