title: Trichothecene chemotypes ofFusarium graminearum isolated from corn in Hungary.
abstract: Twenty three strains ofFusarium graminearum isolated from corn were screened for their ability to produce type A and B trichothecenes and zearalenone (ZEA) on the solid substrate rice grains in the dark at 28 °C for 21 days. Toxin analyses were made with HPLC technique. Of 23 total isolates, 10 produced deoxynivalenol (DON), 4 produced DON and nivalenol (NIV), 1 produced DON and 15 acetyl-DON (15-ADON), 1 produced NIV and 4-acetyl-NIV (4-ANIV) and 1 produced NIV. Of 23 totalF. graminearum isolates, 20 produced ZEA. These results suggest that strains ofF. graminearum, prevailing in Hungarian corn growing regions, might belong to DON-and NIV-chemotypes. This is the first report demonstrating that DON-, DON-NIV-, DON-15-ADON-, NIV-4-ANIV and NIV-producingF. graminearum isolates are distributed in Hungary.
authors.affiliation: Department of Plant Pathology, Plant Protection Institute, Hung. Acad. Sci., P. O. Box 102, H-1525, Budapest, Hungary.
authors.forename: A
authors.initials: A
authors.lastname: Szécsi
authors.forename: T
authors.initials: T
authors.lastname: Bartók