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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
07/06/2019 |
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Actualizado : |
07/06/2019 |
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Tipo de producción científica : |
Poster |
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Autor : |
GARMENDIA, G.; PATTARINO. L.; NEGRIN, C.; MARTÍNEZ-SILVEIRA, A.; PEREYRA, S.; VERO, S.; WARD, T.J |
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Afiliación : |
GABRIELA GARMENDIA, Universidad de la República, Facultad de Química, Montevideo, Uruguay.; LUCIA PATTARINO, Universidad de la República, Facultad de Química, Montevideo, Uruguay.; CAMILA NEGRIN TORRES, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ADALGISA MARTÍNEZ SILVEIRA, Universidad de la República, Facultad de Química, Montevideo, Uruguay.; SILVIA ANTONIA PEREYRA CORREA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SILVANA VERO, Universidad de la República, Facultad de Química, Montevideo, Uruguay.; TODD J. WARD, United States Department of Agriculture, Agricultural Research Service, Peoria, IL, USA. |
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Título : |
Species composition, toxigenic potential and aggressiveness of Fusarium isolates causing Head Blight of barley in Uruguay.[Poster]. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
In: Proceedings of the Fusarium head blight Forum, December 2-4, 2018, Regency St. Louis at the Arch St. Louis, Missouri, USA. |
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Páginas : |
p. 84. |
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Idioma : |
Inglés |
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Contenido : |
ABSTRACT:Fusarium Head Blight (FHB) represents one of the major constraints for barley production in Uruguay and significantly decreases grain yield and quality. FHB is also a major food safety concern because causal agents contaminate grains with trichothecenes and other mycotoxins. DNA sequence-based analyses and in-vitro toxin assessments were used to characterize species and trichothecene chemotype composition of FHB pathogens on barley grains in Uruguay. Fusarium graminearum was the dominant species (89.7%), and three other members of the F. graminearum species complex (FGSC) were identified
as FHB pathogens of barley in Uruguay for the first time. Other minor FHB species included F. poae,F. avenaceum, F. pseudograminearum and an unnamed species of the F. incarnatum-equiseti species complex (FIESC). Most isolates (89.7%) had the 15-acetyldeoxynivalenol (15-ADON) trichothecene
type. Yet, results from this study expanded the known area of occurrence within Uruguay for the nivalenol (NIV) toxin type, which was observed among isolates from three species of the FGSC, F. pseudograminearum, and F. poae. Isolates with the 3-acetyldeoxynivalenol (3-ADON) or NX-2 toxin types were not observed, although a previously published multilocus genotyping assay was updated to identify NX-2 strains. Analyses of population structure and comparisons with FHB isolates from wheat in Uruguay indicated that F. graminearum constitutes a single genetic population with no evidence of population differentiation related to the sampled hosts. Inter and intraspecific differences were observed in aggressiveness toward four barley genotypes with different levels of resistance to FHB, and in general nivalenol producers were the least aggressive isolates. Sensitivity to metconazole was approximately
10 times higher than the one detected for tebuconazole. This is the first report regarding tebuconazole
and metconazole sensitivity for Fusarium species causing FHB in barley in Uruguay and establishes
an important starting point for monitoring temporal or spatial changes in FGSC sensitivity, which is
critical to define FHB management practices. MenosABSTRACT:Fusarium Head Blight (FHB) represents one of the major constraints for barley production in Uruguay and significantly decreases grain yield and quality. FHB is also a major food safety concern because causal agents contaminate grains with trichothecenes and other mycotoxins. DNA sequence-based analyses and in-vitro toxin assessments were used to characterize species and trichothecene chemotype composition of FHB pathogens on barley grains in Uruguay. Fusarium graminearum was the dominant species (89.7%), and three other members of the F. graminearum species complex (FGSC) were identified
as FHB pathogens of barley in Uruguay for the first time. Other minor FHB species included F. poae,F. avenaceum, F. pseudograminearum and an unnamed species of the F. incarnatum-equiseti species complex (FIESC). Most isolates (89.7%) had the 15-acetyldeoxynivalenol (15-ADON) trichothecene
type. Yet, results from this study expanded the known area of occurrence within Uruguay for the nivalenol (NIV) toxin type, which was observed among isolates from three species of the FGSC, F. pseudograminearum, and F. poae. Isolates with the 3-acetyldeoxynivalenol (3-ADON) or NX-2 toxin types were not observed, although a previously published multilocus genotyping assay was updated to identify NX-2 strains. Analyses of population structure and comparisons with FHB isolates from wheat in Uruguay indicated that F. graminearum constitutes a single genetic population with no evidence of population dif... Presentar Todo |
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Palabras claves : |
BARLEY; FUSARIUM HEAD BLIGHT(FHB); TIZÓN DE LA CABEZA. |
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Thesagro : |
CEBADA; MICOTOXINAS. |
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Asunto categoría : |
H20 Enfermedades de las plantas |
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Marc : |
LEADER 02985nam a2200253 a 4500
001 1059832
005 2019-06-07
008 2018 bl uuuu u00u1 u #d
100 1 $aGARMENDIA, G.
245 $aSpecies composition, toxigenic potential and aggressiveness of Fusarium isolates causing Head Blight of barley in Uruguay.[Poster].$h[electronic resource]
260 $aIn: Proceedings of the Fusarium head blight Forum, December 2-4, 2018, Regency St. Louis at the Arch St. Louis, Missouri, USA.$c2018
300 $ap. 84.
520 $aABSTRACT:Fusarium Head Blight (FHB) represents one of the major constraints for barley production in Uruguay and significantly decreases grain yield and quality. FHB is also a major food safety concern because causal agents contaminate grains with trichothecenes and other mycotoxins. DNA sequence-based analyses and in-vitro toxin assessments were used to characterize species and trichothecene chemotype composition of FHB pathogens on barley grains in Uruguay. Fusarium graminearum was the dominant species (89.7%), and three other members of the F. graminearum species complex (FGSC) were identified as FHB pathogens of barley in Uruguay for the first time. Other minor FHB species included F. poae,F. avenaceum, F. pseudograminearum and an unnamed species of the F. incarnatum-equiseti species complex (FIESC). Most isolates (89.7%) had the 15-acetyldeoxynivalenol (15-ADON) trichothecene type. Yet, results from this study expanded the known area of occurrence within Uruguay for the nivalenol (NIV) toxin type, which was observed among isolates from three species of the FGSC, F. pseudograminearum, and F. poae. Isolates with the 3-acetyldeoxynivalenol (3-ADON) or NX-2 toxin types were not observed, although a previously published multilocus genotyping assay was updated to identify NX-2 strains. Analyses of population structure and comparisons with FHB isolates from wheat in Uruguay indicated that F. graminearum constitutes a single genetic population with no evidence of population differentiation related to the sampled hosts. Inter and intraspecific differences were observed in aggressiveness toward four barley genotypes with different levels of resistance to FHB, and in general nivalenol producers were the least aggressive isolates. Sensitivity to metconazole was approximately 10 times higher than the one detected for tebuconazole. This is the first report regarding tebuconazole and metconazole sensitivity for Fusarium species causing FHB in barley in Uruguay and establishes an important starting point for monitoring temporal or spatial changes in FGSC sensitivity, which is critical to define FHB management practices.
650 $aCEBADA
650 $aMICOTOXINAS
653 $aBARLEY
653 $aFUSARIUM HEAD BLIGHT(FHB)
653 $aTIZÓN DE LA CABEZA
700 1 $aPATTARINO. L.
700 1 $aNEGRIN, C.
700 1 $aMARTÍNEZ-SILVEIRA, A.
700 1 $aPEREYRA, S.
700 1 $aVERO, S.
700 1 $aWARD, T.J
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Registro original : |
INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
06/04/2017 |
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Actualizado : |
25/10/2019 |
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Tipo de producción científica : |
Documentos |
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Autor : |
PÉREZ DE VIDA, F.; CARRACELAS, G. |
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Afiliación : |
FERNANDO BLAS PEREZ DE VIDA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JULIO GONZALO CARRACELAS GARRIDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Evaluación de cultivares (Fajas): Tacuarembó. |
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Fecha de publicación : |
2017 |
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Fuente / Imprenta : |
In: Día de Campo, arroz, 7 de febrero, Zona Norte, Paso Farías, Artigas / 8 de febrero, Zona Centro, Pueblo del Barro, Tacuarembó, 2017. Tacuarembó (Uruguay): INIA, 2017. |
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Páginas : |
p. 57-58 |
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Idioma : |
Español |
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Contenido : |
Los ensayos en fajas se realizan con el fin de evaluar los cultivares promisorios más destacados en macro parcelas priorizando la instalación de los mismos en predios comerciales donde el manejo del cultivo es el realizado por los productores (exceptuando siembra y cosecha). En los primeros años de avance del material (generaciones F7, F8 y F9) la evaluación de líneas experimentales por parte del Programa de Mejoramiento Genético de Arroz de INIA se realiza en la Unidad Experimental de Paso de la Laguna. Este se conduce mediante ensayos de campo durante al menos 3 años (estadios 1, 2, y 3). De dicha evaluación plurianual surgen los cultivares más destacados que son evaluados bajo esta modalidad. |
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Palabras claves : |
RICE (ORYZA SATIVA L.). |
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Thesagro : |
ARROZ. |
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Asunto categoría : |
F01 Cultivo |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/13618/1/Arroz-febrero-2017.pdf
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Marc : |
LEADER 01318naa a2200169 a 4500
001 1056994
005 2019-10-25
008 2017 bl uuuu u00u1 u #d
100 1 $aPÉREZ DE VIDA, F.
245 $aEvaluación de cultivares (Fajas)$bTacuarembó.
260 $c2017
300 $ap. 57-58
520 $aLos ensayos en fajas se realizan con el fin de evaluar los cultivares promisorios más destacados en macro parcelas priorizando la instalación de los mismos en predios comerciales donde el manejo del cultivo es el realizado por los productores (exceptuando siembra y cosecha). En los primeros años de avance del material (generaciones F7, F8 y F9) la evaluación de líneas experimentales por parte del Programa de Mejoramiento Genético de Arroz de INIA se realiza en la Unidad Experimental de Paso de la Laguna. Este se conduce mediante ensayos de campo durante al menos 3 años (estadios 1, 2, y 3). De dicha evaluación plurianual surgen los cultivares más destacados que son evaluados bajo esta modalidad.
650 $aARROZ
653 $aRICE (ORYZA SATIVA L.)
700 1 $aCARRACELAS, G.
773 $tIn: Día de Campo, arroz, 7 de febrero, Zona Norte, Paso Farías, Artigas / 8 de febrero, Zona Centro, Pueblo del Barro, Tacuarembó, 2017. Tacuarembó (Uruguay): INIA, 2017.
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