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dc.contributor.author
Vázquez García, José G  
dc.contributor.author
Rojano Delgado, Antonia María  
dc.contributor.author
Alcántara de la Cruz, Ricardo  
dc.contributor.author
Torra, Joel  
dc.contributor.author
Dellaferrera, Ignacio Miguel  
dc.contributor.author
Portugal, João  
dc.contributor.author
De Prado, Rafael  
dc.date.available
2022-10-04T17:51:11Z  
dc.date.issued
2021-02  
dc.identifier.citation
Vázquez García, José G; Rojano Delgado, Antonia María; Alcántara de la Cruz, Ricardo; Torra, Joel; Dellaferrera, Ignacio Miguel; et al.; Distribution of Glyphosate-Resistance in Echinochloa crus-galli Across Agriculture Areas in the Iberian Peninsula; Frontiers Media; Frontiers in Plant Science; 12; 2-2021; 1-12  
dc.identifier.issn
1664-462X  
dc.identifier.uri
http://hdl.handle.net/11336/171789  
dc.description.abstract
The levels of resistance to glyphosate of 13 barnyard grass (Echinochloa crus-galli) populations harvested across different agriculture areas in the Southern Iberian Peninsula were determined in greenhouse and laboratory experiments. Shikimate accumulation fast screening separated the populations regarding resistance to glyphosate: susceptible (S) E2, E3, E4, and E6 and resistant (R) E1, E5, E7, E8, E9, E10, E11, E12, and E13. However, resistance factor (GR50 E1–E13/GR50 E6) values separated these populations into three groups: (S) E2, E3, E4, and E6, (R) E1, E5, E7, E8, and E9, and very resistant (VR) E10, E11, E12, and E13. 14C-glyphosate assays performed on two S populations (E2 and E6) showed greater absorption and translocation than those found for R (E7 and E9) and VR (E10 and E12) populations. No previous population metabolized glyphosate to amino methyl phosphonic acid (AMPA) and glyoxylate, except for the E10 population that metabolized 51% to non-toxic products. The VR populations showed two times more 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) activity without herbicide than the rest, while the inhibition of the EPSPS activity by 50% (I50) required much higher glyphosate in R and VR populations than in S populations. These results indicated that different target-site and non-target-site resistance mechanisms were implicated in the resistance to glyphosate in E. crus-galli. Our results conclude that resistance is independent of climate, type of crop, and geographic region and that the level of glyphosate resistance was mainly due to the selection pressure made by the herbicide on the different populations of E. crus-galli studied.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Frontiers Media  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/  
dc.subject
BARNYARD GRASS  
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ENHANCED METABOLISM  
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GLYPHOSATE  
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NON-TARGET-SITE RESISTANCE (NTSR)  
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RESISTANCE MECHANISMS  
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TARGET-SITE RESISTANCE (TSR)  
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Agricultura  
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Agricultura, Silvicultura y Pesca  
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CIENCIAS AGRÍCOLAS  
dc.title
Distribution of Glyphosate-Resistance in Echinochloa crus-galli Across Agriculture Areas in the Iberian Peninsula  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2022-09-29T12:19:17Z  
dc.journal.volume
12  
dc.journal.pagination
1-12  
dc.journal.pais
Canadá  
dc.description.fil
Fil: Vázquez García, José G. Universidad de Córdoba; España  
dc.description.fil
Fil: Rojano Delgado, Antonia María. Universidad de Córdoba; España  
dc.description.fil
Fil: Alcántara de la Cruz, Ricardo. Universidade Federal do São Carlos; Brasil  
dc.description.fil
Fil: Torra, Joel. Universidad de Lleida; España  
dc.description.fil
Fil: Dellaferrera, Ignacio Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias Agropecuarias del Litoral. Universidad Nacional del Litoral. Instituto de Ciencias Agropecuarias del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentina  
dc.description.fil
Fil: Portugal, João. Instituto Politcnico de Beja; Portugal. Instituto Politcnico de Portalegre; Portugal  
dc.description.fil
Fil: De Prado, Rafael. Universidad de Córdoba; España  
dc.journal.title
Frontiers in Plant Science  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3389/fpls.2021.617040