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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
06/07/2022 |
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Actualizado : |
06/07/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
MARQUES, S.; VILA-AIUB, M.; HERNÁNDEZ, M.; KASPARY, T. E.; GARCIA, A. |
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Afiliación : |
SOFÍA MARQUES HILL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARTIN VILA-AIUB, IFEVA -CONICET.Faculty of Agronomy, Department of Ecology, University of Buenos Aires (UBA), Buenos Aires, Argentina.; MANUEL HERNÁNDEZ, School of Agronomy, University of the Republic of Uruguay, Montevideo, Uruguay.; TIAGO EDU KASPARY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MILTON ALEJANDRO GARCIA LATASA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Cross-and multiple herbicide resistance in Lolium multiflorum across Uruguay. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Weed Research, 2022,1-10. Doi: https://doi.org/10.1111/wre.12545 |
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Serie : |
Online:1365-3180 |
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DOI : |
10.1111/wre.12545 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 1 March 2022/Accepted: 31 May 2022/First Published: 5 July 2022. |
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Contenido : |
Abstract: Herbicide resistance is currently one of the most important problems in agricultural systems, threatening their sustainability. In Uruguay, there have been increasing reports of herbicide failures to control LOLMU (Lolium multiflorum Lam.) populations.
However, methodical characterization of herbicide resistance cases is lacking. Seeds from 66 LOLMU populations were collected from cropping fields and screened in greenhouse conditions with the recommended (1x) and half the recommended (1/2x) label dose of glyphosate, clethodim, pinoxaden and a formulation with iodosulfuron-methyl-sodium and mesosulfuron-methyl (IodoMeso). Populations were classified as resistant when mortality was equal to or lower than 80% in response to 1x doses, assessed 28 days after treatment (DAT). Results show that 80% of LOLMU populations were resistant to glyphosate, followed by 49%, 36% and 24% resistance to IodoMeso, pinoxaden and clethodim respectively. Moreover, 52% of the tested populations were resistant to more than one herbicide, with an important frequency of populations resistant to glyphosate and IodoMeso (17%) and to all tested herbicides (16%). In addition, a high correlation of resistance levels was found between pinoxaden and clethodim resistant populations (R2 = 0.84). Geographic distribution of tested populations suggests that multiple herbicide resistance is concentrated in fields with a longer history of herbicide use. Overall, these results confirm that herbicide resistance in LOLMU is widespread in agricultural regions of Uruguay and that significant number of multiple resistance cases already exist and are expected to increase rapidly if management practices are not adjusted quickly and substantially.This survey represents a key input to improve herbicide-resistant LOLMU management strategies. MenosAbstract: Herbicide resistance is currently one of the most important problems in agricultural systems, threatening their sustainability. In Uruguay, there have been increasing reports of herbicide failures to control LOLMU (Lolium multiflorum Lam.) populations.
However, methodical characterization of herbicide resistance cases is lacking. Seeds from 66 LOLMU populations were collected from cropping fields and screened in greenhouse conditions with the recommended (1x) and half the recommended (1/2x) label dose of glyphosate, clethodim, pinoxaden and a formulation with iodosulfuron-methyl-sodium and mesosulfuron-methyl (IodoMeso). Populations were classified as resistant when mortality was equal to or lower than 80% in response to 1x doses, assessed 28 days after treatment (DAT). Results show that 80% of LOLMU populations were resistant to glyphosate, followed by 49%, 36% and 24% resistance to IodoMeso, pinoxaden and clethodim respectively. Moreover, 52% of the tested populations were resistant to more than one herbicide, with an important frequency of populations resistant to glyphosate and IodoMeso (17%) and to all tested herbicides (16%). In addition, a high correlation of resistance levels was found between pinoxaden and clethodim resistant populations (R2 = 0.84). Geographic distribution of tested populations suggests that multiple herbicide resistance is concentrated in fields with a longer history of herbicide use. Overall, these results confirm that herbicide resista... Presentar Todo |
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Palabras claves : |
Herbicide-resistant ryegrass; Resistance evolution; Resistance screening; South America. |
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Thesagro : |
CONTROL DE MALEZAS; HERBICIDAS. |
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Asunto categoría : |
H60 Malezas y escardas |
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Marc : |
LEADER 02727naa a2200277 a 4500
001 1063406
005 2022-07-06
008 2022 bl uuuu u00u1 u #d
024 7 $a10.1111/wre.12545$2DOI
100 1 $aMARQUES, S.
245 $aCross-and multiple herbicide resistance in Lolium multiflorum across Uruguay.$h[electronic resource]
260 $c2022
490 $aOnline:1365-3180
500 $aArticle history: Received: 1 March 2022/Accepted: 31 May 2022/First Published: 5 July 2022.
520 $aAbstract: Herbicide resistance is currently one of the most important problems in agricultural systems, threatening their sustainability. In Uruguay, there have been increasing reports of herbicide failures to control LOLMU (Lolium multiflorum Lam.) populations. However, methodical characterization of herbicide resistance cases is lacking. Seeds from 66 LOLMU populations were collected from cropping fields and screened in greenhouse conditions with the recommended (1x) and half the recommended (1/2x) label dose of glyphosate, clethodim, pinoxaden and a formulation with iodosulfuron-methyl-sodium and mesosulfuron-methyl (IodoMeso). Populations were classified as resistant when mortality was equal to or lower than 80% in response to 1x doses, assessed 28 days after treatment (DAT). Results show that 80% of LOLMU populations were resistant to glyphosate, followed by 49%, 36% and 24% resistance to IodoMeso, pinoxaden and clethodim respectively. Moreover, 52% of the tested populations were resistant to more than one herbicide, with an important frequency of populations resistant to glyphosate and IodoMeso (17%) and to all tested herbicides (16%). In addition, a high correlation of resistance levels was found between pinoxaden and clethodim resistant populations (R2 = 0.84). Geographic distribution of tested populations suggests that multiple herbicide resistance is concentrated in fields with a longer history of herbicide use. Overall, these results confirm that herbicide resistance in LOLMU is widespread in agricultural regions of Uruguay and that significant number of multiple resistance cases already exist and are expected to increase rapidly if management practices are not adjusted quickly and substantially.This survey represents a key input to improve herbicide-resistant LOLMU management strategies.
650 $aCONTROL DE MALEZAS
650 $aHERBICIDAS
653 $aHerbicide-resistant ryegrass
653 $aResistance evolution
653 $aResistance screening
653 $aSouth America
700 1 $aVILA-AIUB, M.
700 1 $aHERNÁNDEZ, M.
700 1 $aKASPARY, T. E.
700 1 $aGARCIA, A.
773 $tWeed Research, 2022,1-10. Doi: https://doi.org/10.1111/wre.12545
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INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
03/01/2019 |
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Actualizado : |
11/11/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
GARMENDIA, G.; PATTARINO, L.; NEGRIN, C.; MARTÍNEZ-SILVEIRA, A.; PEREYRA, S.; WARD, T.J.; VERO, S. |
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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. |
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Título : |
Species composition, toxigenic potential and aggressiveness of Fusarium isolates causing Head Blight of barley in Uruguay. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
Food Microbiology, v. 76, December 2018, p. 426-433. |
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ISSN : |
1095-9998 |
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DOI : |
10.1016/j.fm.2018.07.005 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 22 September 2017// Revised 14 March 2018//Accepted 12 July 2018// Available online 17 July 2018. |
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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 |
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Palabras claves : |
BARLEY; MYCOTOXINS. |
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Thesagro : |
CEBADA; FUSARIUM; MICOTOXINAS. |
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Asunto categoría : |
H20 Enfermedades de las plantas |
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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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