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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha : |
03/01/2019 |
Actualizado : |
11/11/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
GARMENDIA, G.; PATTARINO, L.; NEGRIN, C.; MARTÍNEZ-SILVEIRA, A.; PEREYRA, S.; WARD, T.J.; VERO, S. |
Afiliación : |
GABRIELA GARMENDIA, Área Microbiología, Departamento de Biociencias, Facultad de Química, Universidad de la República, General Flores 2124, 11800, Montevideo, Uruguay.; LUCIANA PATTARINO, Área Microbiología, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo, Uruguay.; CAMILA NEGRIN TORRES, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.Área Microbiología, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo, Uruguay.; ADALGISA MARTÍNEZ-SILVEIRA, Área Microbiología, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo, Uruguay.; SILVIA ANTONIA PEREYRA CORREA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; TODD J. WARD, Mycotoxin Prevention and Applied Microbiology, USDA-ARS, 1815 N, University St.Peoria, IL, 61604, USA.; SILVANA VERO, Área Microbiología, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo, Uruguay. |
Título : |
Species composition, toxigenic potential and aggressiveness of Fusarium isolates causing Head Blight of barley in Uruguay. |
Fecha de publicación : |
2018 |
Fuente / Imprenta : |
Food Microbiology, v. 76, December 2018, p. 426-433. |
ISSN : |
1095-9998 |
DOI : |
10.1016/j.fm.2018.07.005 |
Idioma : |
Inglés |
Notas : |
Article history: Received 22 September 2017// Revised 14 March 2018//Accepted 12 July 2018// Available online 17 July 2018. |
Contenido : |
ABSTRACT:Fusarium Head Blight (FHB) is a major constraint to barley production that substantially reduces yield and grain quality. FHB is also a major food safety concern because FHB pathogens contaminate grain with trichothecenes and other mycotoxins. DNA sequence-based analyses and in-vitro toxin assessments were used to characterize the species and trichothecene chemotype composition of FHB pathogens on barley in Uruguay. F. 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 contributors to FHB species diversity included F. poae, F. avenaceum, F. pseudograminearum and an unnamed species from the F. incarnatumequiseti species complex (FIESC). Most isolates (89.7%) had the 15-acetyldeoxynivalenol (15-ADON) trichothecene type. However, the results 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 was detected for tebuconazole. This is the first report regarding tebuconazole and metconazole sensitivity for Fusarium species causing FHB in barley in Uruguay, and constitutes 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) is a major constraint to barley production that substantially reduces yield and grain quality. FHB is also a major food safety concern because FHB pathogens contaminate grain with trichothecenes and other mycotoxins. DNA sequence-based analyses and in-vitro toxin assessments were used to characterize the species and trichothecene chemotype composition of FHB pathogens on barley in Uruguay. F. 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 contributors to FHB species diversity included F. poae, F. avenaceum, F. pseudograminearum and an unnamed species from the F. incarnatumequiseti species complex (FIESC). Most isolates (89.7%) had the 15-acetyldeoxynivalenol (15-ADON) trichothecene type. However, the results 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 ... Presentar Todo |
Palabras claves : |
BARLEY; MYCOTOXINS. |
Thesagro : |
CEBADA; FUSARIUM; MICOTOXINAS. |
Asunto categoría : |
H20 Enfermedades de las plantas |
Marc : |
LEADER 03057naa a2200289 a 4500 001 1059407 005 2019-11-11 008 2018 bl uuuu u00u1 u #d 022 $a1095-9998 024 7 $a10.1016/j.fm.2018.07.005$2DOI 100 1 $aGARMENDIA, G. 245 $aSpecies composition, toxigenic potential and aggressiveness of Fusarium isolates causing Head Blight of barley in Uruguay.$h[electronic resource] 260 $c2018 500 $aArticle history: Received 22 September 2017// Revised 14 March 2018//Accepted 12 July 2018// Available online 17 July 2018. 520 $aABSTRACT:Fusarium Head Blight (FHB) is a major constraint to barley production that substantially reduces yield and grain quality. FHB is also a major food safety concern because FHB pathogens contaminate grain with trichothecenes and other mycotoxins. DNA sequence-based analyses and in-vitro toxin assessments were used to characterize the species and trichothecene chemotype composition of FHB pathogens on barley in Uruguay. F. 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 contributors to FHB species diversity included F. poae, F. avenaceum, F. pseudograminearum and an unnamed species from the F. incarnatumequiseti species complex (FIESC). Most isolates (89.7%) had the 15-acetyldeoxynivalenol (15-ADON) trichothecene type. However, the results 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 was detected for tebuconazole. This is the first report regarding tebuconazole and metconazole sensitivity for Fusarium species causing FHB in barley in Uruguay, and constitutes an important starting point for monitoring temporal or spatial changes in FGSC sensitivity, which is critical to define FHB management practices. 650 $aCEBADA 650 $aFUSARIUM 650 $aMICOTOXINAS 653 $aBARLEY 653 $aMYCOTOXINS 700 1 $aPATTARINO, L. 700 1 $aNEGRIN, C. 700 1 $aMARTÍNEZ-SILVEIRA, A. 700 1 $aPEREYRA, S. 700 1 $aWARD, T.J. 700 1 $aVERO, S. 773 $tFood Microbiology$gv. 76, December 2018, p. 426-433.
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INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha actual : |
21/02/2014 |
Actualizado : |
22/02/2014 |
Autor : |
Castro, M.; Díaz de Ackermann, M.; Vazquez, D.; Ibañez, V.; Long, C. |
Título : |
Características digestivas de la nutria en la etapa de engorde y su importancia en la regulación de la ingesta de alimento, utilización de la proteína, fibra y energía alimentaria |
Fecha de publicación : |
2002 |
Fuente / Imprenta : |
ln: Avances de investigación sobre nutrición y calidad de carne en nutria mutación: reunión de divulgación, 2002 Trabajos presentados. Las Brujas, Canelones (Uruguay): INIA, 2002. |
Páginas : |
p. 1-3 |
Serie : |
(INIA Serie Actividades de Difusión ; 290) |
Idioma : |
Español |
Notas : |
INIA Las Brujas |
Thesagro : |
NUTRIA (NOMBRE COMUN). |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/325/1/18429200808141922.pdf
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Marc : |
LEADER 00845naa a2200205 a 4500 001 1026646 005 2014-02-22 008 2002 bl uuuu u00u1 u #d 100 1 $aCASTRO, M. 245 $aCaracterísticas digestivas de la nutria en la etapa de engorde y su importancia en la regulación de la ingesta de alimento, utilización de la proteína, fibra y energía alimentaria 260 $c2002 300 $ap. 1-3 490 $a(INIA Serie Actividades de Difusión ; 290) 500 $aINIA Las Brujas 650 $aNUTRIA (NOMBRE COMUN) 700 1 $aDÍAZ DE ACKERMANN, M. 700 1 $aVAZQUEZ, D. 700 1 $aIBAÑEZ, V. 700 1 $aLONG, C. 773 $tln: Avances de investigación sobre nutrición y calidad de carne en nutria mutación: reunión de divulgación, 2002 Trabajos presentados. Las Brujas, Canelones (Uruguay): INIA, 2002.
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