Ability of Fusarium graminearum isolates to produce deoxynivalenol

F. graminearum, predominant Fusarium species on wheat in Croatia, produce several mycotoxins of which deoxynivalenol (DON) is most frequantly found in wheat grains and flour. Food and feed contaminated by mycotoxins represent health risks for humans and animals. Fourteen isolates of Fusarium graminearum were investigated for their pathogenicity on wheat ears as well as for deoxynivalenol production. DON were detected in all 14 samples at concentrations ranging from 2.51 to 12.14 mg kg-1.