Zearalenone production by Fusarium species isolated from soybeans
The incidence of species of Fusarium in soybeans and their ability to produce zearalenone was evaluated. Fusarium species were present in 5% of the beans examined. Of 43 isolates 41.8% were toxinogenic, belonging to the following species (number of zearalenone producers/number of isolates tested): F...
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| Autores principales: | , , |
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| Formato: | JOUR |
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_01681605_v4_n2_p129_Vaamonde |
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| Sumario: | The incidence of species of Fusarium in soybeans and their ability to produce zearalenone was evaluated. Fusarium species were present in 5% of the beans examined. Of 43 isolates 41.8% were toxinogenic, belonging to the following species (number of zearalenone producers/number of isolates tested): F. equiseti (5/11), F. semitectum (13/24), F. moniliforme (0/6) and Fusarium spp. (0/2). Two high zearalenone producing isolates of F. equiseti and F. semitectum produced on rice 2.050 and 1.370 μg of zearalenone per g of substrate, respectively. When these strains were inoculated on soybeans detectable amounts of zearalenone were not produced although the fungi grew vigorously. This suggests that soybeans are not a good substrate for the biosynthesis of zearalenone by Fusarium species. © 1987. |
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