Screening fusarium strains isolated from overwintered Canadian grains for trichothecenes
- 1 January 1980
- journal article
- research article
- Published by Springer Nature in Mycopathologia
- Vol. 72 (3) , 175-180
- https://doi.org/10.1007/bf00572661
Abstract
A survey of 38 samples of Canadian overwintered grains showed that 14 (37 %) contained viableFusarium. Of a total of 38Fusarium isolates, cultured on autoclaved corn, 20 (from 7 grain samples) showed toxicity to brine shrimp larvae and 12 (from 5 samples) produced levels of trichothecenes detectable by thin layer chromatography. The principal trichothecene found was T-2 toxin, produced by 10 strains and accompanied in half of these by neosolaniol; some of these strains were identified asF. sporotrichioides Sherbakoff. Two strains ofF. poae (Peck) Wollenw. formed small amounts of diacetoxyscirpenol. T-2 toxin was the most toxic of 8 trichothecenes tested on brine shrimp larvae; the wide range of toxicities limits the usefulness of this bioassay as a general screening method for trichothecenes.Keywords
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