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Artículo

Non-target-site glyphosate resistance in Echinochloa colona from Western Australia

Goh, Sou Sheng; Yu, Qin; Han, Heping; Vila Aiub, Martin MiguelIcon ; Busi, Roberto; Powles, Stephen B.
Fecha de publicación: 10/2018
Editorial: Elsevier
Revista: Crop Protection
ISSN: 0261-2194
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Agronomía, reproducción y protección de plantas

Resumen

An Echinochloa colona population from Western Australia has evolved resistance to glyphosate. This current study investigates the physiological, molecular and biochemical basis of glyphosate resistance in this population. To minimise genetic differences the susceptible (S) and resistance (R) phenotypes were isolated from within this resistant population. The S phenotype was found to accumulate significantly more shikimate in the leaf tissue than the R phenotype following glyphosate treatment. Target-site EPSPS gene sequencing revealed no resistance mutations and EPSPS gene expression was similar between the S and R phenotypes. Thus, glyphosate resistance in this population is unlikely target-site based. Similarly, there were no significant differences between the S and R phenotypes in glyphosate leaf uptake and translocation at the whole plant level. It is also unlikely that the resistance is associated with glyphosate metabolism as no major glyphosate metabolites were detected in leaf tissue of the S and R phenotypes. Despite much effort the exact glyphosate resistance mechanisms in this R population remain unclear, and novel resistance mechanisms are to be determined.
Palabras clave: ECHINOCHLOA COLONA , EPSPS , GLYPHOSATE , NON-TARGET-SITE RESISTANCE
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/93156
DOI: http://dx.doi.org/10.1016/j.cropro.2018.06.013
URL: https://www.sciencedirect.com/science/article/pii/S0261219418301686
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Articulos(IFEVA)
Articulos de INST.D/INV.FISIOLOGICAS Y ECO.VINCULADAS A L/AGRIC
Citación
Goh, Sou Sheng; Yu, Qin; Han, Heping; Vila Aiub, Martin Miguel; Busi, Roberto; et al.; Non-target-site glyphosate resistance in Echinochloa colona from Western Australia; Elsevier; Crop Protection; 112; 10-2018; 257-263
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