Production of DON-related trichothecenes byFusarium graminearum Schw from Krasnodarski krai of the USSR |
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Authors: | AN Leonov GP Kononenko NA Soboleva |
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Affiliation: | 1. Institute of Veterinary Sanitation, USSR, Zvenigorodskoe shosse, 5, 123022, Moscow
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Abstract: | 34Fusarium graminearum Schw isolates produced 4-deoxynivalenol to form significant amounts of 4, 7 — dideoxynivalenol and lesser amounts of 4 — deoxynivalenol monoacetates on grain substratesin vitro. This is the first report on the capability a large group of naturally occurring isolates to produce 4,7-dideoxynivalenol. The average levels of 4,7-dideoxynivalenol on rice, corn, barley, and wheat as a substrate were respectively 26.8, 14.0, 12.8, and 10.5% of the level of 4-deoxynivalenol. 4, 7 — dideoxynivalenol was present in all examined naturally contaminated wheat kernel samples at levels of 1.7 to 7.9% of the level of 4-deoxynivalenol. These findings suggest that more attention should be given to the occurrence of 4,7-dideoxynivalenol in cereals. |
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