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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha : |
27/04/2020 |
Actualizado : |
08/02/2021 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
DIEZ VIGNOLA, M.; SAINZ, M.; SALDAIN, N.E.; MARCHESI, C.; BONNECARRERE, V.; DÍAZ GADEA, P. |
Afiliación : |
MANUEL DIEZ VIGNOLA, Facultad de Agronomía, UDELAR UY.; MARTHA SAINZ, Facultad de Agronomía, UDELAR UY.; NÉSTOR ELIO SALDAIN CROCCE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CLAUDIA ELIZABETH MARCHESI GYERMAN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIA VICTORIA BONNECARRERE MARTINEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PEDRO DÍAZ GADEA, Facultad de Agronomía, UDELAR UY. |
Título : |
Limited induction of ethylene and cyanide synthesis are observed in quinclorac-resistant barnyardgrass (Echinochloa crus-galli) in Uruguay. |
Fecha de publicación : |
2020 |
Fuente / Imprenta : |
Weed Science, 1 July 2020, Volume 68, Issue 4, Pages 348-357. Doi: https://doi.org/10.1017/wsc.2020.32 |
DOI : |
https://doi.org/10.1017/wsc.2020.32 |
Idioma : |
Inglés |
Notas : |
Article history: Article accepted and Published online by Cambridge University Press: 28 April 2020 |
Contenido : |
Abstract: Barnyardgrass [Echinochloa crus-galli (L.) P. Beauv] is the foremost weed in rice (Oryza sativa L.) systems and its control is crucial to successful rice production. Quinclorac, a synthetic auxin herbicide, has been used effectively to manage E. crus-galli. However, the occurrence of quinclorac-resistant genotypes are frequently reported, and its resistance evolution has questioned the continued utility of quinclorac for grass control. Identification of the resistance mechanism(s) of resistant genotypes will facilitate development of integrated weed management strategies that sustain quinclorac use for management of E. crus-galli. We evaluated the responses to quinclorac of two contrasting genotypes: E7 (resistant, R) and LM04 (susceptible, S). Quinclorac induced ethylene and cyanide biosynthesis in the S-genotype. Both genotypes responded similarly to an increasing application of exogenous 1-carboxylic acid aminocyclopropane (ACC) and potassium cyanide (KCN), and their growth was inhibited at higher doses. The key mechanism for cyanide (HCN) detoxification in plants, β-cyanoalanine synthase (β-CAS) activity, was evaluated in both genotypes, and no significant difference was observed in the basal activity. However, quinclorac significantly induced β-CAS-like activity in the S-genotype, which is consistent with the increased synthesis of ethylene and cyanide. This work suggests that the resistance to quinclorac of the E7 R-genotype is likely related to an alteration in the auxin signal transduction pathway, causing a lower stimulation of ACC synthase and, therefore, limited synthesis of ethylene and HCN after quinclorac treatment. MenosAbstract: Barnyardgrass [Echinochloa crus-galli (L.) P. Beauv] is the foremost weed in rice (Oryza sativa L.) systems and its control is crucial to successful rice production. Quinclorac, a synthetic auxin herbicide, has been used effectively to manage E. crus-galli. However, the occurrence of quinclorac-resistant genotypes are frequently reported, and its resistance evolution has questioned the continued utility of quinclorac for grass control. Identification of the resistance mechanism(s) of resistant genotypes will facilitate development of integrated weed management strategies that sustain quinclorac use for management of E. crus-galli. We evaluated the responses to quinclorac of two contrasting genotypes: E7 (resistant, R) and LM04 (susceptible, S). Quinclorac induced ethylene and cyanide biosynthesis in the S-genotype. Both genotypes responded similarly to an increasing application of exogenous 1-carboxylic acid aminocyclopropane (ACC) and potassium cyanide (KCN), and their growth was inhibited at higher doses. The key mechanism for cyanide (HCN) detoxification in plants, β-cyanoalanine synthase (β-CAS) activity, was evaluated in both genotypes, and no significant difference was observed in the basal activity. However, quinclorac significantly induced β-CAS-like activity in the S-genotype, which is consistent with the increased synthesis of ethylene and cyanide. This work suggests that the resistance to quinclorac of the E7 R-genotype is likely related t... Presentar Todo |
Palabras claves : |
?-CYANOALANINE; AUXIN HERBICIDE; BARNYARDGRASS; RECISTANCE; RICE. |
Thesagro : |
ARROZ. |
Asunto categoría : |
H60 Malezas y escardas |
Marc : |
LEADER 02659naa a2200277 a 4500 001 1061037 005 2021-02-08 008 2020 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1017/wsc.2020.32$2DOI 100 1 $aDIEZ VIGNOLA, M. 245 $aLimited induction of ethylene and cyanide synthesis are observed in quinclorac-resistant barnyardgrass (Echinochloa crus-galli) in Uruguay.$h[electronic resource] 260 $c2020 500 $aArticle history: Article accepted and Published online by Cambridge University Press: 28 April 2020 520 $aAbstract: Barnyardgrass [Echinochloa crus-galli (L.) P. Beauv] is the foremost weed in rice (Oryza sativa L.) systems and its control is crucial to successful rice production. Quinclorac, a synthetic auxin herbicide, has been used effectively to manage E. crus-galli. However, the occurrence of quinclorac-resistant genotypes are frequently reported, and its resistance evolution has questioned the continued utility of quinclorac for grass control. Identification of the resistance mechanism(s) of resistant genotypes will facilitate development of integrated weed management strategies that sustain quinclorac use for management of E. crus-galli. We evaluated the responses to quinclorac of two contrasting genotypes: E7 (resistant, R) and LM04 (susceptible, S). Quinclorac induced ethylene and cyanide biosynthesis in the S-genotype. Both genotypes responded similarly to an increasing application of exogenous 1-carboxylic acid aminocyclopropane (ACC) and potassium cyanide (KCN), and their growth was inhibited at higher doses. The key mechanism for cyanide (HCN) detoxification in plants, β-cyanoalanine synthase (β-CAS) activity, was evaluated in both genotypes, and no significant difference was observed in the basal activity. However, quinclorac significantly induced β-CAS-like activity in the S-genotype, which is consistent with the increased synthesis of ethylene and cyanide. This work suggests that the resistance to quinclorac of the E7 R-genotype is likely related to an alteration in the auxin signal transduction pathway, causing a lower stimulation of ACC synthase and, therefore, limited synthesis of ethylene and HCN after quinclorac treatment. 650 $aARROZ 653 $a?-CYANOALANINE 653 $aAUXIN HERBICIDE 653 $aBARNYARDGRASS 653 $aRECISTANCE 653 $aRICE 700 1 $aSAINZ, M. 700 1 $aSALDAIN, N.E. 700 1 $aMARCHESI, C. 700 1 $aBONNECARRERE, V. 700 1 $aDÍAZ GADEA, P. 773 $tWeed Science, 1 July 2020, Volume 68, Issue 4, Pages 348-357. Doi: https://doi.org/10.1017/wsc.2020.32
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1. | | AYALA, W. Algunas bases ecofisiológicas para el manejo de pasturas ln: Jornadas Internacionales de Actualización Ganadera para la Pampa Húmeda, 2012, Firmat, Santa Fé, Argentina Jornadas Internacionales de Actualización Ganadera para la Pampa Húmeda. Firmat, Santa Fé (Argentina): Desarrollo Ganadero Sustentable, 2012. En CD Material editado en formato electrónico, pdfs en CD Desarrollo Ganadero Sustentable (Argentina)Tipo: Trabajos en Congresos/Conferencias |
Biblioteca(s): INIA Treinta y Tres. |
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4. | | AYALA, W. Determinación del banco de semillaS de leguminosas. Revista del Plan Agropecuario, 2001, no.98, p. 43-44. Agradecimientos: A los Ing. Agr. Raúl Bermúdez, Milton Carámbula y José Terra por sus valiosas sugerencias en la elaboración de este artículo.Tipo: Artículos en Revistas Agropecuarias |
Biblioteca(s): INIA Tacuarembó. |
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17. | | AYALA, W.; CARÁMBULA, M. Control de Eryngium horridum en una pastura natural In: ASOCIACIÓN LATINOAMERICANA DE MALEZAS. CONGRESO LATINOAMERICANO DE MALEZAS, 12. 21-23 MARZO 1995, MONTEVIDEO (URY). RÍOS, A.; FERNÁNDEZ, G. (EDS.). Conferencias y trabajos. Montevideo: INIA, 1995. p. 322-327 (INIA Serie Técnica ; 56) Congreso declarado de interés nacional (decreto del Poder Ejecutivo octubre/1994)Tipo: Trabajos en Congresos/Conferencias |
Biblioteca(s): INIA La Estanzuela; INIA Las Brujas; INIA Tacuarembó; INIA Treinta y Tres. |
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19. | | BERMÚDEZ, R.; AYALA, W. Avances en el control de gramilla en mejoramientos de lotus maku In: INIA TREINTA Y TRES. Jornada de divulgación de la Unidad Experimental Palo a Pique. Treinta y Tres (Uruguay): INIA, 2007. p. 1-4 (INIA Serie Actividades de Difusión ; 511) Programa Nacional Pasturas y Forrajes: Ing. Agr., PhD. Walter Ayala-Director de Programa, Ing. Agr., MPhil. Raúl Bermúdez, Ing. Agr. Virginia Pravia, Téc. en Sistemas Intensivos de Prod.Animal Ethel Barrios; Programa Nacional Producción...Tipo: Actividades de Difusión |
Biblioteca(s): INIA Las Brujas; INIA Tacuarembó; INIA Treinta y Tres. |
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