Determination of trichothecene chemotypes of Fusarium graminearum strains isolated in Hungary

Á Szécsi, T. Bartók, M. Varga, D. Magyar, Á Mesterházy

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

A total of 42 strains of Fusarium graminearum isolated from cereals, maize, grasses and air were screened for their ability to produce 8-ketotrichothecenes [deoxynivalenol (DON), 3-acetyldeoxynivalenol (ADON), 15-ADON, nivalenol (NIV)]. The isolates were grown on the solid substrate of rice grains in the dark at 25 and 10°C for 28 days. Toxin analyses were made by gas chromatography mass spectrometry (GC-MS) technique. The GC-MS was more suitable for qualitative and quantitative determination of acetyl-DONs, than high-performance liquid chromatographic (HPLC) technique. Of the 42 F. graminearum isolates, 39 produced DON, 34 produced both 3- and 15-ADON and one produced DON-NIV. The quantity of DON varied with isolates (46-6840 mg/kg). Our results suggest that strains of F. graminearum prevailing in Hungarian cereal- and maize-growing regions belong to DON chemotype.

Original languageEnglish
Pages (from-to)445-448
Number of pages4
JournalJournal of Phytopathology
Volume153
Issue number7-8
DOIs
Publication statusPublished - Dec 1 2005

Keywords

  • 8-ketotrichothecenes
  • Acetyldeoxynivalenol
  • Chemotypes
  • Deoxynivalenol
  • Fusarium graminearum
  • Nivalenol

ASJC Scopus subject areas

  • Physiology
  • Agronomy and Crop Science
  • Genetics
  • Plant Science

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