Fusarium species and mycotoxins associated with sorghum grains in Uruguay.
ABSTRACT.- Grain mold and stalk rot are among the fungal diseases that cause significant losses in sorghum worldwide and are caused by different Fusarium spp. The presence of Fusarium species in sorghum grains causes yield losses and mycotoxin contamination, which represents a risk to consumers. In...
| Autores: | , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2023 |
| País: | Uruguay |
| Institución: | Instituto Nacional de Investigación Agropecuaria |
| Repositorio: | AINFO |
| Idioma: | inglés |
| OAI Identifier: | oai:redi.anii.org.uy:20.500.12381/4507 |
| Acceso en línea: | https://ainfo.inia.uy/consulta/busca?b=pc&id=64283&biblioteca=vazio&busca=64283&qFacets=64283 |
| Access Level: | acceso abierto |
| Palabra clave: | Fusarium graminearum Fusarium fujikuroi species complex Trichothecene Zearalenone Fumonisin Fungicide sensitivity |
| Sumario: | ABSTRACT.- Grain mold and stalk rot are among the fungal diseases that cause significant losses in sorghum worldwide and are caused by different Fusarium spp. The presence of Fusarium species in sorghum grains causes yield losses and mycotoxin contamination, which represents a risk to consumers. In this study, Fusarium graminearum species complex (FGSC) had a high incidence, followed by Fusarium fujikuroi species complex (FFSC) and F. incarnatum-equiseti species complex. Within FFSC, F. proliferatum, F. andiyazi, F. fujikuroi, F. thapsinum, F. verticillioides and F. subglutinans were identified, and this was the first report of F. fujikuroi in sorghum. The most frequent toxins found in sorghum samples were deoxynivalenol (DON) and zearalenone (ZEN). The presence of fumonisins and nivalenol (NIV) was detected at low levels. This study adds new knowledge about the occurrence of Fusarium species and mycotoxins in sorghum grains. Furthermore, this is the first report in Uruguay on fungicide sensitivity for Fusarium isolates from sorghum, which constitutes an important starting point for defining management practices to minimize fungal infection and mycotoxin contamination. © 2023 by the authors. |
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