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resumen

Resumen
2,4-D resistance is increasing around the world due to both transgenic crops and resistance to other herbicides. The objective of the this study was to characterize the currently unknown mechanisms of 2,4-D resistance in five weed species from around the globe: Amaranthus hybridus (Argentina), Conyza canadensis (Hungary), Conyza sumatrensis (France), Hirschfeldia incana (Argentina) and Parthenium hysterophorus (Dominican Republic), using Papaver rhoeas [ver mas...]
dc.contributor.authorPalma Bautista, Candelario
dc.contributor.authorRojano Delgado, Antonia María
dc.contributor.authorDellaferrera, Ignacio Miguel
dc.contributor.authorRosario, Jesús M.
dc.contributor.authorVigna, Mario Raul
dc.contributor.authorTorra, Joel
dc.contributor.authorde Prado, Rafael
dc.date.accessioned2020-11-11T14:55:53Z
dc.date.available2020-11-11T14:55:53Z
dc.date.issued2020
dc.identifier.issn2073-4395
dc.identifier.otherhttps://doi.org/10.3390/agronomy10040566
dc.identifier.urihttp://hdl.handle.net/20.500.12123/8243
dc.identifier.urihttps://www.mdpi.com/2073-4395/10/4/566
dc.description.abstract2,4-D resistance is increasing around the world due to both transgenic crops and resistance to other herbicides. The objective of the this study was to characterize the currently unknown mechanisms of 2,4-D resistance in five weed species from around the globe: Amaranthus hybridus (Argentina), Conyza canadensis (Hungary), Conyza sumatrensis (France), Hirschfeldia incana (Argentina) and Parthenium hysterophorus (Dominican Republic), using Papaver rhoeas (Spain) as a standard resistant (R) species. Dose-response trials using malathion and absorption, translocation and metabolism experiments were performed to unravel the resistance mechanisms. R plants produced at least 3-folds less ethylene than susceptible plants, confirming the resistance to 2,4-D, together with resistance factors >4. A. hybridus, P. hysterophorus and P. rhoeas showed both reduced translocation and enhanced metabolism. In the two Conyza sps., the only resistance mechanism found was enhanced metabolism. Malathion synergized with 2,4-D in all these species, indicating the role of cytochrome P450 in the herbicide degradation. In H. incana, reduced translocation was the only contributing mechanism to resistance. Among the six dicotyledonous weed species investigated, there was a differential contribution to 2,4-D resistance of enhanced metabolism and reduced translocation. Thus, extrapolating 2,4-D resistance mechanisms from one weed species to another is very risky, if even related.eng
dc.formatapplication/pdfeng
dc.language.isoeng
dc.publisherMDPIes_AR
dc.rightsinfo:eu-repo/semantics/openAccesseng
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.sourceAgronomy 10 (4) : 566. (2020)eng
dc.subjectAmaranthus Hybriduseng
dc.subjectConyzaeng
dc.subjectCytochrome P450eng
dc.subjectCitocromo P450es_AR
dc.subjectPapaver Rhoeaseng
dc.subjectTranslocationeng
dc.subjectTraslocaciónes_AR
dc.subject.otherEnhanced Metabolismeng
dc.subject.otherMetabolismo Mejoradoes_AR
dc.subject.otherHirschfeldia Incanaes_AR
dc.subject.otherParthenium Hysterophoruses_AR
dc.subject.otherReduced Translocationes_AR
dc.titleResistance mechanisms to 2,4-D in six different dicotyledonous weeds around the worldeng
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.rights.licenseCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.description.origenEEA Bordenavees_AR
dc.description.filFil: Palma Bautista, Candelario. Universidad de Córdoba. Departamento de Química Agrícola y Edafología; Españaes_AR
dc.description.filFil: Rojano Delgado, Antonia María. Universidad de Córdoba. Departamento de Química Agrícola y Edafología; Españaes_AR
dc.description.filFil: Dellaferrera, Ignacio Miguel. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentinaes_AR
dc.description.filFil: Dellaferrera, Ignacio Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentinaes_AR
dc.description.filFil: Rosario, Jesús M. Universidad de Córdoba. Departamento de Química Agrícola y Edafología; Españaes_AR
dc.description.filFil: Vigna, Mario Raúl. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentinaes_AR
dc.description.filFil: Torra, Joel. Universidad de Lleida. Departamento de Horticultura y Fruticultura. Agrotecnio; Españaes_AR
dc.description.filFil: de Prado, Rafael. Universidad de Córdoba. Departamento de Química Agrícola y Edafología; Españaes_AR
dc.subtypecientifico


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