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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha : |
27/05/2019 |
Actualizado : |
07/06/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Nacionales |
Autor : |
SCHOLZ, R.; PEREYRA, S.; GARCIA, R.; GERMAN, S. |
Afiliación : |
RUTH FABIOLA SCHOLZ DRODOWSKI, Instituto Paraguayo de Tecnología Agraria (IPTA). Capitán Miranda Itapúa Ruta 6 km 16. Paraguay.; SILVIA ANTONIA PEREYRA CORREA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; RICHARD ANSELMO GARCIA USUCA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SILVIA ELISA GERMAN FAEDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Identificación de razas de roya de la hoja del trigo presentes en Uruguay durante 2011-2012. [Identification of Wheat Leaf Rust Races Present in Uruguay during 2011-2012]. |
Fecha de publicación : |
2019 |
Fuente / Imprenta : |
Agrociencia Uruguay, 2019, 23(1):1-9. |
ISSN : |
1510 0839- ISSN electrónico 2301-1548. |
DOI : |
10.31285/AGRO.23.1.10 |
Idioma : |
Español |
Notas : |
Article history: Recibido: 06-12-2017// Aceptado: 11-09-2018. |
Contenido : |
Resumen: La roya de la hoja de trigo (RH), causada por Puccinia triticina Ericks, es una de las enfermedades del cultivo más prevalentes en Uruguay y otros países del Cono Sur. En epidemias severas se han estimado pérdidas de rendimiento de más de 50 % y pueden ser necesarias dos o más aplicaciones de fungicidas para controlar la enfermedad en cultivares susceptibles. Los estudios de la variabilidad del patógeno son importantes para determinar su rango de virulencia, para inferir el mecanismo de su variación, determinar el origen y dispersión de los patotipos y confirmar la presencia de nuevas razas inferidas por el cambio de comportamiento del hospedero. El objetivo de esta investigación fue estudiar la diversidad en la población de P. triticina en Uruguay durante 2011 y 2012. Se estudiaron un total de 363 muestras de RH recolectadas en diferentes momentos de distintos cultivares y localidades de la región del cultivo. La prevalencia de las 22 razas identificadas (de mayor a menor frecuencia MFP; TDT-10,20; MDP; MDT-10,20; TFT-10,20; MFP-20; MFP-10,20; MDP-20; DBB-10,20; MKD-10; TPR-20,39; MFT-10,20; MDP-10,20; MDR-10,20; MFT; MDT; MFP-10; MHJ-10; MJD10; TMD-10,20; MCP; MFR-10,20), se relacionó a su virulencia sobre los cultivares utilizados por los agricultores. La presencia o frecuencia de las razas varió entre años, zonas y momento de recolección. Se reportan por primera vez las razas DBB-10,20, MHJ-10, MJD-10, MKD-10, TMD-10,20 y TPR-20,30, no previamente detectadas en Uruguay. Este estudio permitió confirmar que la población del patógeno presente en Uruguay es diversa y continúa evolucionando.
Summary: Leaf rust (LR), caused by Puccinia triticina Ericks, is one of the most prevalent wheat diseases in Uruguay and other countries of the Southern Cone. The economic importance of the disease is clear considering that, in severe epidemics, grain yield losses of more than 50 % have been determined and that two or more fungicide applications are necessary to control the disease in susceptible cultivars. Studies on the pathogen variability are important to determine its range of virulence, infer the mechanism of its variation, determine the origin and spread of pathotypes, complement the knowledge of the resistance of commercial cultivars, confirm the presence of new races inferred by change of the host reaction, and identify races important for breeding and specific studies. The objective of this research was to study the diversity in the P. triticina population in Uruguay during 2011 and 2012. A total of 363 LR samples collected at different times from different cultivars and locations of the crop area were studied. The prevalence of 22 identified races (higher to lower frequency: MFP; TDT-10,20; MDP; MDT-10,20; TFT-10,20; MFP-20; MFP-10,20; MDP-20; DBB-10,20; MKD-10; TPR-20,39; MFT-10,20; MDP-10,20; MDR-10,20; MFT; MDT; MFP-10; MHJ-10; MJD-10; TMD10,20; MCP; MFR-10,20), was related to the virulence on cultivars used by farmers. The presence or frequency of the races varied among years, zones and time of collection. Two races not epreviously reported were detected. This study confirmed that the pathogen population present in Uruguay is diverse and continues to evolve. MenosResumen: La roya de la hoja de trigo (RH), causada por Puccinia triticina Ericks, es una de las enfermedades del cultivo más prevalentes en Uruguay y otros países del Cono Sur. En epidemias severas se han estimado pérdidas de rendimiento de más de 50 % y pueden ser necesarias dos o más aplicaciones de fungicidas para controlar la enfermedad en cultivares susceptibles. Los estudios de la variabilidad del patógeno son importantes para determinar su rango de virulencia, para inferir el mecanismo de su variación, determinar el origen y dispersión de los patotipos y confirmar la presencia de nuevas razas inferidas por el cambio de comportamiento del hospedero. El objetivo de esta investigación fue estudiar la diversidad en la población de P. triticina en Uruguay durante 2011 y 2012. Se estudiaron un total de 363 muestras de RH recolectadas en diferentes momentos de distintos cultivares y localidades de la región del cultivo. La prevalencia de las 22 razas identificadas (de mayor a menor frecuencia MFP; TDT-10,20; MDP; MDT-10,20; TFT-10,20; MFP-20; MFP-10,20; MDP-20; DBB-10,20; MKD-10; TPR-20,39; MFT-10,20; MDP-10,20; MDR-10,20; MFT; MDT; MFP-10; MHJ-10; MJD10; TMD-10,20; MCP; MFR-10,20), se relacionó a su virulencia sobre los cultivares utilizados por los agricultores. La presencia o frecuencia de las razas varió entre años, zonas y momento de recolección. Se reportan por primera vez las razas DBB-10,20, MHJ-10, MJD-10, MKD-10, TMD-10,20 y TPR-20,30, no previamente detectadas en ... Presentar Todo |
Palabras claves : |
PATHOGEN POPULATION; POBLACIÓN DE PATÓGENO; PUCCINIA TRITICINA; RACES; RAZAS. |
Thesagro : |
TRIGO; TRITICUM AESTIVUM. |
Asunto categoría : |
F01 Cultivo |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/12699/1/Agrociencia-Uruguay-v.23.n.1.p.1-9-2019-Pereyra-et-al.pdf
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Marc : |
LEADER 04169naa a2200277 a 4500 001 1059783 005 2019-06-07 008 2019 bl uuuu u00u1 u #d 022 $a1510 0839- ISSN electrónico 2301-1548. 024 7 $a10.31285/AGRO.23.1.10$2DOI 100 1 $aSCHOLZ, R. 245 $aIdentificación de razas de roya de la hoja del trigo presentes en Uruguay durante 2011-2012. [Identification of Wheat Leaf Rust Races Present in Uruguay during 2011-2012].$h[electronic resource] 260 $c2019 500 $aArticle history: Recibido: 06-12-2017// Aceptado: 11-09-2018. 520 $aResumen: La roya de la hoja de trigo (RH), causada por Puccinia triticina Ericks, es una de las enfermedades del cultivo más prevalentes en Uruguay y otros países del Cono Sur. En epidemias severas se han estimado pérdidas de rendimiento de más de 50 % y pueden ser necesarias dos o más aplicaciones de fungicidas para controlar la enfermedad en cultivares susceptibles. Los estudios de la variabilidad del patógeno son importantes para determinar su rango de virulencia, para inferir el mecanismo de su variación, determinar el origen y dispersión de los patotipos y confirmar la presencia de nuevas razas inferidas por el cambio de comportamiento del hospedero. El objetivo de esta investigación fue estudiar la diversidad en la población de P. triticina en Uruguay durante 2011 y 2012. Se estudiaron un total de 363 muestras de RH recolectadas en diferentes momentos de distintos cultivares y localidades de la región del cultivo. La prevalencia de las 22 razas identificadas (de mayor a menor frecuencia MFP; TDT-10,20; MDP; MDT-10,20; TFT-10,20; MFP-20; MFP-10,20; MDP-20; DBB-10,20; MKD-10; TPR-20,39; MFT-10,20; MDP-10,20; MDR-10,20; MFT; MDT; MFP-10; MHJ-10; MJD10; TMD-10,20; MCP; MFR-10,20), se relacionó a su virulencia sobre los cultivares utilizados por los agricultores. La presencia o frecuencia de las razas varió entre años, zonas y momento de recolección. Se reportan por primera vez las razas DBB-10,20, MHJ-10, MJD-10, MKD-10, TMD-10,20 y TPR-20,30, no previamente detectadas en Uruguay. Este estudio permitió confirmar que la población del patógeno presente en Uruguay es diversa y continúa evolucionando. Summary: Leaf rust (LR), caused by Puccinia triticina Ericks, is one of the most prevalent wheat diseases in Uruguay and other countries of the Southern Cone. The economic importance of the disease is clear considering that, in severe epidemics, grain yield losses of more than 50 % have been determined and that two or more fungicide applications are necessary to control the disease in susceptible cultivars. Studies on the pathogen variability are important to determine its range of virulence, infer the mechanism of its variation, determine the origin and spread of pathotypes, complement the knowledge of the resistance of commercial cultivars, confirm the presence of new races inferred by change of the host reaction, and identify races important for breeding and specific studies. The objective of this research was to study the diversity in the P. triticina population in Uruguay during 2011 and 2012. A total of 363 LR samples collected at different times from different cultivars and locations of the crop area were studied. The prevalence of 22 identified races (higher to lower frequency: MFP; TDT-10,20; MDP; MDT-10,20; TFT-10,20; MFP-20; MFP-10,20; MDP-20; DBB-10,20; MKD-10; TPR-20,39; MFT-10,20; MDP-10,20; MDR-10,20; MFT; MDT; MFP-10; MHJ-10; MJD-10; TMD10,20; MCP; MFR-10,20), was related to the virulence on cultivars used by farmers. The presence or frequency of the races varied among years, zones and time of collection. Two races not epreviously reported were detected. This study confirmed that the pathogen population present in Uruguay is diverse and continues to evolve. 650 $aTRIGO 650 $aTRITICUM AESTIVUM 653 $aPATHOGEN POPULATION 653 $aPOBLACIÓN DE PATÓGENO 653 $aPUCCINIA TRITICINA 653 $aRACES 653 $aRAZAS 700 1 $aPEREYRA, S. 700 1 $aGARCIA, R. 700 1 $aGERMAN, S. 773 $tAgrociencia Uruguay, 2019, 23(1):1-9.
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INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha actual : |
08/09/2014 |
Actualizado : |
06/11/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
A - 1 |
Autor : |
UMPIÉRREZ-FALAICHE, M.; GARMENDIA, G.; PEREYRA, S.; RODRÍGUEZ-HARALAMBIDES, A.; WARD, T.J.; VERO, S. |
Afiliación : |
SILVIA ANTONIA PEREYRA CORREA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
Título : |
Regional differences in species composition and toxigenic potential among Fusarium head blight isolates from Uruguay indicate a risk of nivalenol contamination in new wheat production areas. |
Fecha de publicación : |
2013 |
Fuente / Imprenta : |
International Journal of Food Microbiology, v. 166, n. 1, p. 135-140, 2013 |
ISSN : |
0168-1605 |
DOI : |
10.1016/j.ijfoodmicro.2013.06.029 |
Idioma : |
Inglés |
Notas : |
Article history:Received 15 April 2013/Received in revised form 18 June 2013/Accepted 23 June 2013/Available online 1 July 2013. |
Contenido : |
Abstract
Members of the Fusarium graminearum species complex (FGSC) are the primary cause of Fusarium head blight (FHB) of wheat, and frequently contaminate grain with trichothecene mycotoxins that pose a serious threat to food safety and animal health. The species identity and trichothecene toxin potential of 151 FGSC isolates collected from wheat in Uruguay were determined via multilocus genotyping. Although F. graminearum with the 15ADON trichothecene type accounted for 86% of the isolates examined, five different FGSC species and all three trichothecene types were identified in this collection. This is the first report of Fusarium asiaticum, Fusarium brasilicum, Fusarium cortaderiae, and Fusarium austroamericanum from Uruguay. In addition, we observed significant (P<0.001) regional differences in the composition of FGSC species and trichothecene types within Uruguay. Isolates of F. graminearum with the 15ADON type were the most prevalent in western provinces (95%), while F. asiaticum (43%) and the NIV type (61%) predominated in the new wheat production zone in Cerro Largo along Uruguay's eastern border with Brazil. F. graminearum isolates (15ADON type) were significantly (P<0.005) more aggressive on wheat than were isolates from the other species examined (NIV or 3ADON types). However, F. graminearum isolates (15ADON type) were significantly (P<0.05) more sensitive to tebuconazole than isolates from other species (NIV type). These results document substantial heterogeneity among the pathogens responsible for FHB in Uruguay. In addition, the regional predominance of the NIV trichothecene type is of significant concern to food safety and indicates that additional monitoring of nivalenol levels in grain may be required. MenosAbstract
Members of the Fusarium graminearum species complex (FGSC) are the primary cause of Fusarium head blight (FHB) of wheat, and frequently contaminate grain with trichothecene mycotoxins that pose a serious threat to food safety and animal health. The species identity and trichothecene toxin potential of 151 FGSC isolates collected from wheat in Uruguay were determined via multilocus genotyping. Although F. graminearum with the 15ADON trichothecene type accounted for 86% of the isolates examined, five different FGSC species and all three trichothecene types were identified in this collection. This is the first report of Fusarium asiaticum, Fusarium brasilicum, Fusarium cortaderiae, and Fusarium austroamericanum from Uruguay. In addition, we observed significant (P<0.001) regional differences in the composition of FGSC species and trichothecene types within Uruguay. Isolates of F. graminearum with the 15ADON type were the most prevalent in western provinces (95%), while F. asiaticum (43%) and the NIV type (61%) predominated in the new wheat production zone in Cerro Largo along Uruguay's eastern border with Brazil. F. graminearum isolates (15ADON type) were significantly (P<0.005) more aggressive on wheat than were isolates from the other species examined (NIV or 3ADON types). However, F. graminearum isolates (15ADON type) were significantly (P<0.05) more sensitive to tebuconazole than isolates from other species (NIV type). These results document substantial heterogenei... Presentar Todo |
Palabras claves : |
AGRESSIVENESS; FGSC; FHB; FUSARIUM ASIATICUM; FUSARIUM AUSTROAMERICANUM; FUSARIUM BRASILICUM; FUSARIUM CORTADERIAE; FUSARIUM GRAMINEARUM SPECIES COMPLEX; FUSARIUM HEAD BLIGHT; MULTILOCUS GENOTYPING; NIVALENOL; TEBUCONAZOLE; TRICHOTHECENE MYCOTOXINS. |
Thesagro : |
FITOPATOLOGIA; TRIGO; URUGUAY. |
Asunto categoría : |
H20 Enfermedades de las plantas |
Marc : |
LEADER 03172naa a2200409 a 4500 001 1050037 005 2019-11-06 008 2013 bl uuuu u00u1 u #d 022 $a0168-1605 024 7 $a10.1016/j.ijfoodmicro.2013.06.029$2DOI 100 1 $aUMPIÉRREZ-FALAICHE, M. 245 $aRegional differences in species composition and toxigenic potential among Fusarium head blight isolates from Uruguay indicate a risk of nivalenol contamination in new wheat production areas.$h[electronic resource] 260 $c2013 500 $aArticle history:Received 15 April 2013/Received in revised form 18 June 2013/Accepted 23 June 2013/Available online 1 July 2013. 520 $aAbstract Members of the Fusarium graminearum species complex (FGSC) are the primary cause of Fusarium head blight (FHB) of wheat, and frequently contaminate grain with trichothecene mycotoxins that pose a serious threat to food safety and animal health. The species identity and trichothecene toxin potential of 151 FGSC isolates collected from wheat in Uruguay were determined via multilocus genotyping. Although F. graminearum with the 15ADON trichothecene type accounted for 86% of the isolates examined, five different FGSC species and all three trichothecene types were identified in this collection. This is the first report of Fusarium asiaticum, Fusarium brasilicum, Fusarium cortaderiae, and Fusarium austroamericanum from Uruguay. In addition, we observed significant (P<0.001) regional differences in the composition of FGSC species and trichothecene types within Uruguay. Isolates of F. graminearum with the 15ADON type were the most prevalent in western provinces (95%), while F. asiaticum (43%) and the NIV type (61%) predominated in the new wheat production zone in Cerro Largo along Uruguay's eastern border with Brazil. F. graminearum isolates (15ADON type) were significantly (P<0.005) more aggressive on wheat than were isolates from the other species examined (NIV or 3ADON types). However, F. graminearum isolates (15ADON type) were significantly (P<0.05) more sensitive to tebuconazole than isolates from other species (NIV type). These results document substantial heterogeneity among the pathogens responsible for FHB in Uruguay. In addition, the regional predominance of the NIV trichothecene type is of significant concern to food safety and indicates that additional monitoring of nivalenol levels in grain may be required. 650 $aFITOPATOLOGIA 650 $aTRIGO 650 $aURUGUAY 653 $aAGRESSIVENESS 653 $aFGSC 653 $aFHB 653 $aFUSARIUM ASIATICUM 653 $aFUSARIUM AUSTROAMERICANUM 653 $aFUSARIUM BRASILICUM 653 $aFUSARIUM CORTADERIAE 653 $aFUSARIUM GRAMINEARUM SPECIES COMPLEX 653 $aFUSARIUM HEAD BLIGHT 653 $aMULTILOCUS GENOTYPING 653 $aNIVALENOL 653 $aTEBUCONAZOLE 653 $aTRICHOTHECENE MYCOTOXINS 700 1 $aGARMENDIA, G. 700 1 $aPEREYRA, S. 700 1 $aRODRÍGUEZ-HARALAMBIDES, A. 700 1 $aWARD, T.J. 700 1 $aVERO, S. 773 $tInternational Journal of Food Microbiology$gv. 166, n. 1, p. 135-140, 2013
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