First Case of Glyphosate Resistance in Bromus catharticus Vahl.: Examination of Endowing Resistance Mechanisms

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorNational Scientific and Technical Research Council-
Autor(es): dc.contributorMDA-INTA-
Autor(es): dc.contributorUniversity of Cordoba-
Autor(es): dc.contributorNational University of La Plata-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorYanniccari, Marcos-
Autor(es): dc.creatorVázquez-García, José G.-
Autor(es): dc.creatorGómez-Lobato, María E.-
Autor(es): dc.creatorRojano-Delgado, Antonia M.-
Autor(es): dc.creatorAlves, Pedro L. da C. A. [UNESP]-
Autor(es): dc.creatorDe Prado, Rafael-
Data de aceite: dc.date.accessioned2022-02-22T00:45:56Z-
Data de disponibilização: dc.date.available2022-02-22T00:45:56Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-02-17-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3389/fpls.2021.617945-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/206011-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/206011-
Descrição: dc.descriptionBromus catharticus Vahl. has been used as a valuable forage crop, but it has also been noted as a weed of winter crops and an invader in several countries. In Argentina, a putative glyphosate-resistant population of B. catharticus was identified as a consequence of the lack of effective control with glyphosate in the pre-sowing of wheat. Plant survival and shikimate accumulation analysis demonstrated a lower glyphosate-sensitivity of this population in comparison to a susceptible B. catharticus population. The resistant population was 4-fold more resistant to glyphosate than its susceptible counterpart. There was no evidence of target-site mechanisms of glyphosate resistance or an enhanced capacity to metabolize glyphosate in the resistant population. However, the resistant plants showed a lower foliar retention of glyphosate (138.34 μl solution g−1 dry weight vs. 390.79 μl solution g−1 dry weight), a reduced absorption of 14C-glyphosate (54.18 vs. 73.56%) and lower translocation of 14C-glyphosate from the labeled leaf (27.70 vs. 62.36%). As a result, susceptible plants accumulated a 4.1-fold higher concentration of 14C-glyphosate in the roots compared to resistant plants. The current work describes the first worldwide case of glyphosate resistance in B. catharticus. A reduced foliar retention of herbicide, a differential rate of glyphosate entry into leaves and an altered glyphosate translocation pattern would be the most likely mechanisms of glyphosate exclusion.-
Descrição: dc.descriptionInstituto Nacional de Tecnología Agropecuaria-
Descrição: dc.descriptionNational Scientific and Technical Research Council-
Descrição: dc.descriptionChacra Experimental Integrada Barrow MDA-INTA-
Descrição: dc.descriptionDepartment of Agricultural Chemistry and Edaphology University of Cordoba-
Descrição: dc.descriptionPlant Physiology Institute (INFIVE) National University of La Plata-
Descrição: dc.descriptionSchool of Agricultural and Veterinarian Sciences Sâo Paulo State University (Unesp)-
Descrição: dc.descriptionSchool of Agricultural and Veterinarian Sciences Sâo Paulo State University (Unesp)-
Descrição: dc.descriptionInstituto Nacional de Tecnología Agropecuaria: 2019-PE-E4-I086-001-
Idioma: dc.languageen-
Relação: dc.relationFrontiers in Plant Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBrome-
Palavras-chave: dc.subjectEPSPS gene-
Palavras-chave: dc.subjectglyphosate absorption-
Palavras-chave: dc.subjectglyphosate translocation-
Palavras-chave: dc.subjectshikimate-
Título: dc.titleFirst Case of Glyphosate Resistance in Bromus catharticus Vahl.: Examination of Endowing Resistance Mechanisms-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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