Abstract
A total of 50 Fusarium isolates representing 13 species from various sources were surveyed to determine their potential to produce sambutoxin. Sambutoxin production was restricted to Fusarium sambucinum and F. oxysporum, with the exception of one isolate of F. semitectum. Sambutoxin was produced by high percentages of F. sambucinum (80.0%) and F. oxysporum (84.6%) isolates at levels of 1.1 to 101.0 (mu)g/g. In addition, 9 (42.9%) of 21 rotten potato samples were contaminated with sambutoxin at levels of 15.8 to 78.1 ng/g.
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