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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
06/12/2023 |
Actualizado : |
12/12/2023 |
Tipo de producción científica : |
Abstracts/Resúmenes |
Autor : |
KASPARY, T. E.; KAVANOVÁ, M.; CABRERA, M.; GARCIA, A. |
Afiliación : |
TIAGO EDU KASPARY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MONIKA KAVANOVÁ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ORLANDO MAURICIO CABRERA GARCIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MILTON ALEJANDRO GARCIA LATASA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Amaranthus hybridus en Uruguay: elevado nivel de resistencia a glifosato y presencia de la mutación TAP-IVS. [abstract] |
Fecha de publicación : |
2023 |
Fuente / Imprenta : |
En: Congreso Argentino de Malezas, IV - ASACIM, MALEZAS 2023 "Ciencia, producción y sociedad: hacia un manejo sustentable", 14-15 setiembre 2023, Mar del Plata - Buenos Aires, Argentina. |
Idioma : |
Español |
Notas : |
Financiación: INIA. |
Contenido : |
RESUMEN.- Amaranthus hybridus (syn: quitensis), conocido como yuyo colorado, es actualmente una de las malezas más importantes en los sistemas agrícolas uruguayos, generando graves pérdidas en la producción de cultivos por su elevada capacidad de competir por recursos como agua, luz y nutrientes. Recientemente, se observaron casos de falla de control después de la aplicación de glifosato, principal herbicida utilizado en su manejo.
El objetivo de este trabajo fue determinar el nivel de resistencia a glifosato en los biotipos de A. hybridus colectados en Uruguay con presunta resistencia a glifosato, y analizar la posible presencia de la triple mutación TAP-IVS en el sitio activo de la enzima EPSPS (5-enolpiruvilshiquimato-3-fosfato sintasa) como mecanismo de resistencia. ----- SUMMARY.- Amaranthus hybridus (syn: quitensis), known as smooth pigweed, is currently one of the most important weeds in Uruguayan agricultural systems, generating serious losses in crop production due to its high capacity to compete for resources such as water, light and nutrients. Recently, cases of lack of control have been observed after the application of glyphosate, the main herbicide used in its management. The objective of this work was to determine the level of resistance to glyphosate in the biotypes of A. hybridus collected in Uruguay with presumed resistance to glyphosate, and to analyze the possible presence of the triple mutation TAP-IVS in the active site of the EPSPS enzyme (5enolpyruvylshikimate-3-phosphate synthase) as a resistance mechanism. MenosRESUMEN.- Amaranthus hybridus (syn: quitensis), conocido como yuyo colorado, es actualmente una de las malezas más importantes en los sistemas agrícolas uruguayos, generando graves pérdidas en la producción de cultivos por su elevada capacidad de competir por recursos como agua, luz y nutrientes. Recientemente, se observaron casos de falla de control después de la aplicación de glifosato, principal herbicida utilizado en su manejo.
El objetivo de este trabajo fue determinar el nivel de resistencia a glifosato en los biotipos de A. hybridus colectados en Uruguay con presunta resistencia a glifosato, y analizar la posible presencia de la triple mutación TAP-IVS en el sitio activo de la enzima EPSPS (5-enolpiruvilshiquimato-3-fosfato sintasa) como mecanismo de resistencia. ----- SUMMARY.- Amaranthus hybridus (syn: quitensis), known as smooth pigweed, is currently one of the most important weeds in Uruguayan agricultural systems, generating serious losses in crop production due to its high capacity to compete for resources such as water, light and nutrients. Recently, cases of lack of control have been observed after the application of glyphosate, the main herbicide used in its management. The objective of this work was to determine the level of resistance to glyphosate in the biotypes of A. hybridus collected in Uruguay with presumed resistance to glyphosate, and to analyze the possible presence of the triple mutation TAP-IVS in the active site of the EPSPS enzyme (5enolpyruvyl... Presentar Todo |
Palabras claves : |
Curva dosis-respuesta; EPSPS; Mecanismo de resistencia; Yuyo colorado. |
Asunto categoría : |
F01 Cultivo |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/17432/1/AMARANTHUS-HYBRIDUS-EN-URUGUAY-ELEVADO-NIVEL-DE-RESISTENCIA-A-GLIFOSATO-Y-PRESENCIA-DE-LA-MUTACIO769N-TAPIV.pdf
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Marc : |
LEADER 02357nam a2200205 a 4500 001 1064394 005 2023-12-12 008 2023 bl uuuu u01u1 u #d 100 1 $aKASPARY, T. E. 245 $aAmaranthus hybridus en Uruguay$belevado nivel de resistencia a glifosato y presencia de la mutación TAP-IVS. [abstract]$h[electronic resource] 260 $aEn: Congreso Argentino de Malezas, IV - ASACIM, MALEZAS 2023 "Ciencia, producción y sociedad: hacia un manejo sustentable", 14-15 setiembre 2023, Mar del Plata - Buenos Aires, Argentina.$c2023 500 $aFinanciación: INIA. 520 $aRESUMEN.- Amaranthus hybridus (syn: quitensis), conocido como yuyo colorado, es actualmente una de las malezas más importantes en los sistemas agrícolas uruguayos, generando graves pérdidas en la producción de cultivos por su elevada capacidad de competir por recursos como agua, luz y nutrientes. Recientemente, se observaron casos de falla de control después de la aplicación de glifosato, principal herbicida utilizado en su manejo. El objetivo de este trabajo fue determinar el nivel de resistencia a glifosato en los biotipos de A. hybridus colectados en Uruguay con presunta resistencia a glifosato, y analizar la posible presencia de la triple mutación TAP-IVS en el sitio activo de la enzima EPSPS (5-enolpiruvilshiquimato-3-fosfato sintasa) como mecanismo de resistencia. ----- SUMMARY.- Amaranthus hybridus (syn: quitensis), known as smooth pigweed, is currently one of the most important weeds in Uruguayan agricultural systems, generating serious losses in crop production due to its high capacity to compete for resources such as water, light and nutrients. Recently, cases of lack of control have been observed after the application of glyphosate, the main herbicide used in its management. The objective of this work was to determine the level of resistance to glyphosate in the biotypes of A. hybridus collected in Uruguay with presumed resistance to glyphosate, and to analyze the possible presence of the triple mutation TAP-IVS in the active site of the EPSPS enzyme (5enolpyruvylshikimate-3-phosphate synthase) as a resistance mechanism. 653 $aCurva dosis-respuesta 653 $aEPSPS 653 $aMecanismo de resistencia 653 $aYuyo colorado 700 1 $aKAVANOVÁ, M. 700 1 $aCABRERA, M. 700 1 $aGARCIA, A.
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha actual : |
20/10/2017 |
Actualizado : |
20/10/2017 |
Tipo de producción científica : |
Poster |
Autor : |
SIMETO, S.; CORALLO, B.; LUPO, S.; BETTUCCI, L.; GÓMEZ, D.; GONZALEZ, P.; MARTÍNEZ, G.; ABREO, E.; RIVAS, F.; ALTIER, N. |
Afiliación : |
SOFIA SIMETO FERRARI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PAULA KARINA GONZALEZ CASTELLI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GONZALO ANIBAL MARTINEZ CROSA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; NORA ADRIANA ALTIER MANZINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Biological control of Thaumastocoris peregrinus Carpintero and Dellappé (Heteroptera: Thaumastocoridae): towards the development of a mycoinsecticide. [Resumen]. |
Fecha de publicación : |
2017 |
Fuente / Imprenta : |
In: Anniversary Congress, 125th, 19-22 September, Freiburg, Germany, 2017. |
Páginas : |
p. 187 |
Idioma : |
Inglés |
Contenido : |
The bronze bug, Thaumastocoris peregrinus (Heteroptera: Thaumastocoridae) is a small sap feeding hemipteran bug that has become
a serious pest of Eucalyptus plantations worldwide. Affected trees display foliage blight and defoliation, thus reducing photosynthesis and sometimes leading to the death of those highly infested mature trees. The use of entomopathogenic fungi as biological control agents is seen as an environmentally friendly alternative for pest control being chemical control seldom used in commercial forestry because its environmental and economical disadvantages. In this study, naturally occurring entomopathogenic fungi on T. peregrinus were isolated from dead and mycosed insects found in Eucalyptus plantations in Uruguay. Fungal species were identified based on spore and reproductive structures, morphology, culture characteristics, and molecular identification by amplification of the ribosomal DNA comprising ITS1, ITS2 and the 5.8S subunit. The identified entomopathogenic species belong to the genera Beauveria, Isaria, Lecanicillium, Purpureocillium and Pochonia. Bioassays using fiftyeight entomopathogenic fungal isolates from bronze bug and other forestry and agricultural pest insects were performed to determine their pathogenicity and virulence against T. peregrinus. A first in vitro screening was made by spraying 10 7 conidia/ml suspensions onto adults of T. peregrinus reared in mesh cages on detached leaf- bearing twigs of E. tereticornis. Isolates were classified into four categories based on the number of days to reach 90% of mortality. Most of the tested strains (80%) were pathogenic to bronze bug showing different degrees of virulence. For a subset of strains, values of LC 50 and LT50 were determined. In addition, the most promising strains are being subjected to mass production studies in order to identify cost-effective production methods and to select the most stable and virulent formulated strains. MenosThe bronze bug, Thaumastocoris peregrinus (Heteroptera: Thaumastocoridae) is a small sap feeding hemipteran bug that has become
a serious pest of Eucalyptus plantations worldwide. Affected trees display foliage blight and defoliation, thus reducing photosynthesis and sometimes leading to the death of those highly infested mature trees. The use of entomopathogenic fungi as biological control agents is seen as an environmentally friendly alternative for pest control being chemical control seldom used in commercial forestry because its environmental and economical disadvantages. In this study, naturally occurring entomopathogenic fungi on T. peregrinus were isolated from dead and mycosed insects found in Eucalyptus plantations in Uruguay. Fungal species were identified based on spore and reproductive structures, morphology, culture characteristics, and molecular identification by amplification of the ribosomal DNA comprising ITS1, ITS2 and the 5.8S subunit. The identified entomopathogenic species belong to the genera Beauveria, Isaria, Lecanicillium, Purpureocillium and Pochonia. Bioassays using fiftyeight entomopathogenic fungal isolates from bronze bug and other forestry and agricultural pest insects were performed to determine their pathogenicity and virulence against T. peregrinus. A first in vitro screening was made by spraying 10 7 conidia/ml suspensions onto adults of T. peregrinus reared in mesh cages on detached leaf- bearing twigs of E. tereticornis. Isolates were cla... Presentar Todo |
Thesagro : |
CONTROL BIOLÓGICO; FORESTACIÓN. |
Asunto categoría : |
H01 Protección de plantas - Aspectos generales |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/7395/1/sIMETO-2017.pdf
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Marc : |
LEADER 02749nam a2200253 a 4500 001 1057688 005 2017-10-20 008 2017 bl uuuu u00u1 u #d 100 1 $aSIMETO, S. 245 $aBiological control of Thaumastocoris peregrinus Carpintero and Dellappé (Heteroptera$bThaumastocoridae): towards the development of a mycoinsecticide. [Resumen].$h[electronic resource] 260 $aIn: Anniversary Congress, 125th, 19-22 September, Freiburg, Germany$c2017 300 $ap. 187 520 $aThe bronze bug, Thaumastocoris peregrinus (Heteroptera: Thaumastocoridae) is a small sap feeding hemipteran bug that has become a serious pest of Eucalyptus plantations worldwide. Affected trees display foliage blight and defoliation, thus reducing photosynthesis and sometimes leading to the death of those highly infested mature trees. The use of entomopathogenic fungi as biological control agents is seen as an environmentally friendly alternative for pest control being chemical control seldom used in commercial forestry because its environmental and economical disadvantages. In this study, naturally occurring entomopathogenic fungi on T. peregrinus were isolated from dead and mycosed insects found in Eucalyptus plantations in Uruguay. Fungal species were identified based on spore and reproductive structures, morphology, culture characteristics, and molecular identification by amplification of the ribosomal DNA comprising ITS1, ITS2 and the 5.8S subunit. The identified entomopathogenic species belong to the genera Beauveria, Isaria, Lecanicillium, Purpureocillium and Pochonia. Bioassays using fiftyeight entomopathogenic fungal isolates from bronze bug and other forestry and agricultural pest insects were performed to determine their pathogenicity and virulence against T. peregrinus. A first in vitro screening was made by spraying 10 7 conidia/ml suspensions onto adults of T. peregrinus reared in mesh cages on detached leaf- bearing twigs of E. tereticornis. Isolates were classified into four categories based on the number of days to reach 90% of mortality. Most of the tested strains (80%) were pathogenic to bronze bug showing different degrees of virulence. For a subset of strains, values of LC 50 and LT50 were determined. In addition, the most promising strains are being subjected to mass production studies in order to identify cost-effective production methods and to select the most stable and virulent formulated strains. 650 $aCONTROL BIOLÓGICO 650 $aFORESTACIÓN 700 1 $aCORALLO, B. 700 1 $aLUPO, S. 700 1 $aBETTUCCI, L. 700 1 $aGÓMEZ, D. 700 1 $aGONZALEZ, P. 700 1 $aMARTÍNEZ, G. 700 1 $aABREO, E. 700 1 $aRIVAS, F. 700 1 $aALTIER, N.
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