Inhibition of EPSPS overexpression of glyphosate-resistant Lolium perenne L. with a clethodim and glyphosate mixture
- Autores
- Yanniccari, Marcos; Gigon, Ramon
- Año de publicación
- 2025
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- BACKGROUND: Glyphosate-resistant populations of some grass species have demonstrated high sensitivity to combinations of glyphosate and acetyl-CoA carboxylase (ACCase)-inhibiting herbicides. Nevertheless, it is unclear how glyphosate contributes to the control of glyphosate-resistant plants when combined with other active ingredients such as clethodim. The current work aimed to detect if glyphosate-resistant Lolium perenne L. biotypes associated with target-site [5-enolpyruvylshikimate-3-phosphate synthase (EPSPS)] overexpression and EPSPS mutation (P106S) as mechanisms of resistance are equally controlled by clethodim or clethodim plus glyphosate compared to a susceptible counterpart. RESULTS: Plants of the EPSPS overexpression biotype were most sensitive to glyphosate when it was combined with clethodim, and the dose required to halve the maximal response (I50) calculated for glyphosate was reduced to a third. However, the ACCase inhibitor seems to be uniquely responsible for weed control in the P106S biotype. In response to clethodim, EPSPS expression was inhibited in the glyphosate-resistant EPSPS overexpression biotype to a level like or lower than that of susceptible plants. The glyphosate plus clethodim mixture caused a 1.7-fold increase in shikimate concentration in the leaves of susceptible and EPSPS overexpression biotypes compared to glyphosate alone. CONCLUSION: The effects of glyphosate plus clethodim impact in different senses according to the mechanism of resistance involved, where the convergent action of both herbicides controlled the susceptible and EPSPS overexpression biotypes. In contrast, the P106S biotype died because of the clethodim component in the mixture. Mixing herbicides should not be considered a complete solution to herbicide resistance management, and its potential seems dependent on the resistance mechanism involved.
 EEA Barrow
 Fil: Yanniccari, Marcos Ezequiel. Instituto Nacional de Tecnología Agropecuaria (INTA). Chacra Experimental Integrada Barrow; Argentina
 Fil: Yanniccari, Marcos Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
 Fil: Yanniccari, Marcos Ezequiel. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina
 Fil: Gigón, Ramón. Consultor privado en Control de Malezas; Argentina
- Fuente
- Pest Management Science : 1-7 (First published: 12 February 2025)
- Materia
- 
            
        Lolium perenne
 Glyphosate
 Clethodim
 Herbicides
 Resistance to Herbicides
 Weeds
 Glifosato
 Cletodim
 Herbicidas
 Resistencia a los Herbicidas
 Malezas
- Nivel de accesibilidad
- acceso restringido
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg) 
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/21346
Ver los metadatos del registro completo
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| oai_identifier_str | oai:localhost:20.500.12123/21346 | 
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| network_name_str | INTA Digital (INTA) | 
| spelling | Inhibition of EPSPS overexpression of glyphosate-resistant Lolium perenne L. with a clethodim and glyphosate mixtureYanniccari, MarcosGigon, RamonLolium perenneGlyphosateClethodimHerbicidesResistance to HerbicidesWeedsGlifosatoCletodimHerbicidasResistencia a los HerbicidasMalezasBACKGROUND: Glyphosate-resistant populations of some grass species have demonstrated high sensitivity to combinations of glyphosate and acetyl-CoA carboxylase (ACCase)-inhibiting herbicides. Nevertheless, it is unclear how glyphosate contributes to the control of glyphosate-resistant plants when combined with other active ingredients such as clethodim. The current work aimed to detect if glyphosate-resistant Lolium perenne L. biotypes associated with target-site [5-enolpyruvylshikimate-3-phosphate synthase (EPSPS)] overexpression and EPSPS mutation (P106S) as mechanisms of resistance are equally controlled by clethodim or clethodim plus glyphosate compared to a susceptible counterpart. RESULTS: Plants of the EPSPS overexpression biotype were most sensitive to glyphosate when it was combined with clethodim, and the dose required to halve the maximal response (I50) calculated for glyphosate was reduced to a third. However, the ACCase inhibitor seems to be uniquely responsible for weed control in the P106S biotype. In response to clethodim, EPSPS expression was inhibited in the glyphosate-resistant EPSPS overexpression biotype to a level like or lower than that of susceptible plants. The glyphosate plus clethodim mixture caused a 1.7-fold increase in shikimate concentration in the leaves of susceptible and EPSPS overexpression biotypes compared to glyphosate alone. CONCLUSION: The effects of glyphosate plus clethodim impact in different senses according to the mechanism of resistance involved, where the convergent action of both herbicides controlled the susceptible and EPSPS overexpression biotypes. In contrast, the P106S biotype died because of the clethodim component in the mixture. Mixing herbicides should not be considered a complete solution to herbicide resistance management, and its potential seems dependent on the resistance mechanism involved.EEA BarrowFil: Yanniccari, Marcos Ezequiel. Instituto Nacional de Tecnología Agropecuaria (INTA). Chacra Experimental Integrada Barrow; ArgentinaFil: Yanniccari, Marcos Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Yanniccari, Marcos Ezequiel. Universidad Nacional de La Pampa. Facultad de Agronomía; ArgentinaFil: Gigón, Ramón. Consultor privado en Control de Malezas; ArgentinaWiley2025-02-19T11:29:34Z2025-02-19T11:29:34Z2025-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/21346https://scijournals.onlinelibrary.wiley.com/doi/10.1002/ps.87191526-498X1526-4998https://doi.org/10.1002/ps.8719Pest Management Science : 1-7 (First published: 12 February 2025)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-10-30T11:25:10Zoai:localhost:20.500.12123/21346instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-10-30 11:25:11.019INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse | 
| dc.title.none.fl_str_mv | Inhibition of EPSPS overexpression of glyphosate-resistant Lolium perenne L. with a clethodim and glyphosate mixture | 
| title | Inhibition of EPSPS overexpression of glyphosate-resistant Lolium perenne L. with a clethodim and glyphosate mixture | 
| spellingShingle | Inhibition of EPSPS overexpression of glyphosate-resistant Lolium perenne L. with a clethodim and glyphosate mixture Yanniccari, Marcos Lolium perenne Glyphosate Clethodim Herbicides Resistance to Herbicides Weeds Glifosato Cletodim Herbicidas Resistencia a los Herbicidas Malezas | 
| title_short | Inhibition of EPSPS overexpression of glyphosate-resistant Lolium perenne L. with a clethodim and glyphosate mixture | 
| title_full | Inhibition of EPSPS overexpression of glyphosate-resistant Lolium perenne L. with a clethodim and glyphosate mixture | 
| title_fullStr | Inhibition of EPSPS overexpression of glyphosate-resistant Lolium perenne L. with a clethodim and glyphosate mixture | 
| title_full_unstemmed | Inhibition of EPSPS overexpression of glyphosate-resistant Lolium perenne L. with a clethodim and glyphosate mixture | 
| title_sort | Inhibition of EPSPS overexpression of glyphosate-resistant Lolium perenne L. with a clethodim and glyphosate mixture | 
| dc.creator.none.fl_str_mv | Yanniccari, Marcos Gigon, Ramon | 
| author | Yanniccari, Marcos | 
| author_facet | Yanniccari, Marcos Gigon, Ramon | 
| author_role | author | 
| author2 | Gigon, Ramon | 
| author2_role | author | 
| dc.subject.none.fl_str_mv | Lolium perenne Glyphosate Clethodim Herbicides Resistance to Herbicides Weeds Glifosato Cletodim Herbicidas Resistencia a los Herbicidas Malezas | 
| topic | Lolium perenne Glyphosate Clethodim Herbicides Resistance to Herbicides Weeds Glifosato Cletodim Herbicidas Resistencia a los Herbicidas Malezas | 
| dc.description.none.fl_txt_mv | BACKGROUND: Glyphosate-resistant populations of some grass species have demonstrated high sensitivity to combinations of glyphosate and acetyl-CoA carboxylase (ACCase)-inhibiting herbicides. Nevertheless, it is unclear how glyphosate contributes to the control of glyphosate-resistant plants when combined with other active ingredients such as clethodim. The current work aimed to detect if glyphosate-resistant Lolium perenne L. biotypes associated with target-site [5-enolpyruvylshikimate-3-phosphate synthase (EPSPS)] overexpression and EPSPS mutation (P106S) as mechanisms of resistance are equally controlled by clethodim or clethodim plus glyphosate compared to a susceptible counterpart. RESULTS: Plants of the EPSPS overexpression biotype were most sensitive to glyphosate when it was combined with clethodim, and the dose required to halve the maximal response (I50) calculated for glyphosate was reduced to a third. However, the ACCase inhibitor seems to be uniquely responsible for weed control in the P106S biotype. In response to clethodim, EPSPS expression was inhibited in the glyphosate-resistant EPSPS overexpression biotype to a level like or lower than that of susceptible plants. The glyphosate plus clethodim mixture caused a 1.7-fold increase in shikimate concentration in the leaves of susceptible and EPSPS overexpression biotypes compared to glyphosate alone. CONCLUSION: The effects of glyphosate plus clethodim impact in different senses according to the mechanism of resistance involved, where the convergent action of both herbicides controlled the susceptible and EPSPS overexpression biotypes. In contrast, the P106S biotype died because of the clethodim component in the mixture. Mixing herbicides should not be considered a complete solution to herbicide resistance management, and its potential seems dependent on the resistance mechanism involved. EEA Barrow Fil: Yanniccari, Marcos Ezequiel. Instituto Nacional de Tecnología Agropecuaria (INTA). Chacra Experimental Integrada Barrow; Argentina Fil: Yanniccari, Marcos Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Yanniccari, Marcos Ezequiel. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina Fil: Gigón, Ramón. Consultor privado en Control de Malezas; Argentina | 
| description | BACKGROUND: Glyphosate-resistant populations of some grass species have demonstrated high sensitivity to combinations of glyphosate and acetyl-CoA carboxylase (ACCase)-inhibiting herbicides. Nevertheless, it is unclear how glyphosate contributes to the control of glyphosate-resistant plants when combined with other active ingredients such as clethodim. The current work aimed to detect if glyphosate-resistant Lolium perenne L. biotypes associated with target-site [5-enolpyruvylshikimate-3-phosphate synthase (EPSPS)] overexpression and EPSPS mutation (P106S) as mechanisms of resistance are equally controlled by clethodim or clethodim plus glyphosate compared to a susceptible counterpart. RESULTS: Plants of the EPSPS overexpression biotype were most sensitive to glyphosate when it was combined with clethodim, and the dose required to halve the maximal response (I50) calculated for glyphosate was reduced to a third. However, the ACCase inhibitor seems to be uniquely responsible for weed control in the P106S biotype. In response to clethodim, EPSPS expression was inhibited in the glyphosate-resistant EPSPS overexpression biotype to a level like or lower than that of susceptible plants. The glyphosate plus clethodim mixture caused a 1.7-fold increase in shikimate concentration in the leaves of susceptible and EPSPS overexpression biotypes compared to glyphosate alone. CONCLUSION: The effects of glyphosate plus clethodim impact in different senses according to the mechanism of resistance involved, where the convergent action of both herbicides controlled the susceptible and EPSPS overexpression biotypes. In contrast, the P106S biotype died because of the clethodim component in the mixture. Mixing herbicides should not be considered a complete solution to herbicide resistance management, and its potential seems dependent on the resistance mechanism involved. | 
| publishDate | 2025 | 
| dc.date.none.fl_str_mv | 2025-02-19T11:29:34Z 2025-02-19T11:29:34Z 2025-02 | 
| dc.type.none.fl_str_mv | info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo | 
| format | article | 
| status_str | publishedVersion | 
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/20.500.12123/21346 https://scijournals.onlinelibrary.wiley.com/doi/10.1002/ps.8719 1526-498X 1526-4998 https://doi.org/10.1002/ps.8719 | 
| url | http://hdl.handle.net/20.500.12123/21346 https://scijournals.onlinelibrary.wiley.com/doi/10.1002/ps.8719 https://doi.org/10.1002/ps.8719 | 
| identifier_str_mv | 1526-498X 1526-4998 | 
| dc.language.none.fl_str_mv | eng | 
| language | eng | 
| dc.rights.none.fl_str_mv | info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | 
| eu_rights_str_mv | restrictedAccess | 
| rights_invalid_str_mv | http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | 
| dc.format.none.fl_str_mv | application/pdf | 
| dc.publisher.none.fl_str_mv | Wiley | 
| publisher.none.fl_str_mv | Wiley | 
| dc.source.none.fl_str_mv | Pest Management Science : 1-7 (First published: 12 February 2025) reponame:INTA Digital (INTA) instname:Instituto Nacional de Tecnología Agropecuaria | 
| reponame_str | INTA Digital (INTA) | 
| collection | INTA Digital (INTA) | 
| instname_str | Instituto Nacional de Tecnología Agropecuaria | 
| repository.name.fl_str_mv | INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria | 
| repository.mail.fl_str_mv | tripaldi.nicolas@inta.gob.ar | 
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