Mechanism of resistance to fenoxaprop in Japanese foxtail (Alopecurus japonicus) from China

Xu, Hongle; Zhu, Xudong; Wang, Hongchun; Li, Jun; Li, Dong

doi:10.1016/j.pestbp.2013.04.008

Cited by 43 publications

(67 citation statements)

References 49 publications

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“…The high efficiency of mesosulfuron-methyl made it the most widely and continuously used herbicide in China, especially for many ACCase-resistant grass species [17][18][19]. However, following several years of successful control, more and more researchers are detecting resistance to mesosulfuron-methyl in some grass species [15,20,21].…”

Section: Discussionmentioning

confidence: 99%

Molecular basis of ALS- and/or ACCase-inhibitor resistance in shortawn foxtail (Alopecurus aequalis Sobol.)

Xia

Pan

et al. 2015

Pesticide Biochemistry and Physiology

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Section: Discussionmentioning

confidence: 99%

Molecular basis of ALS- and/or ACCase-inhibitor resistance in shortawn foxtail (Alopecurus aequalis Sobol.)

Xia

Pan

et al. 2015

Pesticide Biochemistry and Physiology

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“…For instance, Jang et al estimated slightly higher levels of resistance to sethoxydim relative to pinoxaden for the W2027C mutation in the yeast‐gene replacement assay. Conversely, whole‐plant herbicide and molecular data suggested that the efficacy of the DEN, but not the DIMs, was affected by the W2027C mutation in black‐grass and Japanese foxtail . Alternatively, individual plants from the same population and genetic background could be genotyped for wild‐type and mutant alleles prior to carrying out dose responses with a range of herbicides, thus overcoming the issue posed by confounding effects of target‐site resistance and non‐target‐site resistance.…”

Section: Mechanism Of Resistancementioning

confidence: 99%

“…Conversely, whole-plant herbicide and molecular data suggested that the efficacy of the DEN, but not the DIMs, was affected by the W2027C mutation in black-grass and Japanese foxtail. 56,106,107 Alternatively, individual plants from the same population and genetic background could be genotyped for wild-type and mutant alleles prior to carrying out dose responses with a range of herbicides, thus overcoming the issue posed by confounding effects of target-site resistance and non-target-site resistance. In this manner, the importance of mutations at codon positions 1781, 1999, 2078 and 2088 could be more precisely assessed.…”

Section: Target-site Resistancementioning

confidence: 99%

Resistance to acetyl‐CoA carboxylase‐inhibiting herbicides

Kaundun

2014

Pest Management Science

208

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Resistance to acetyl-CoA carboxylase herbicides is documented in at least 43 grass weeds and is particularly problematic in Lolium, Alopecurus and Avena species. Genetic studies have shown that resistance generally evolves independently and can be conferred by target-site mutations at ACCase codon positions 1781, 1999, 2027, 2041, 2078, 2088 and 2096. The level of resistance depends on the herbicides, recommended field rates, weed species, plant growth stages, specific amino acid changes and the number of gene copies and mutant ACCase alleles. Non-target-site resistance, or in essence metabolic resistance, is prevalent, multigenic and favoured under low-dose selection. Metabolic resistance can be specific but also broad, affecting other modes of action. Some target-site and metabolic-resistant biotypes are characterised by a fitness penalty. However, the significance for resistance regression in the absence of ACCase herbicides is yet to be determined over a practical timeframe. More recently, a fitness benefit has been reported in some populations containing the I1781L mutation in terms of vegetative and reproductive outputs and delayed germination. Several DNA-based methods have been developed to detect known ACCase resistance mutations, unlike metabolic resistance, as the genes remain elusive to date. Therefore, confirmation of resistance is still carried out via whole-plant herbicide bioassays. A growing number of monocotyledonous crops have been engineered to resist ACCase herbicides, thus increasing the options for grass weed control. While the science of ACCase herbicide resistance has progressed significantly over the past 10 years, several avenues provided in the present review remain to be explored for a better understanding of resistance to this important mode of action.

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“…), a tetraploid grass weed species (Xu H, unpublished), is one of the main problematic weeds infesting oilseed rape and cereal fields in China . Since the first report of A. japonicus resistant to ACCase‐inhibiting herbicides in 2007, resistance has been identified in four other publications . However, the multiple copies of genes encoding plastidic ACCase of A. japonicus have been ignored in previous studies on resistance.…”

Section: Introductionmentioning

confidence: 99%

Mutations at codon position 1999 of acetyl‐CoA carboxylase confer resistance to ACCase‐inhibiting herbicides in Japanese foxtail (Alopecurus japonicus)

Zhang

et al. 2014

Pest Management Science

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Mechanism of resistance to fenoxaprop in Japanese foxtail (Alopecurus japonicus) from China

Cited by 43 publications

References 49 publications

Molecular basis of ALS- and/or ACCase-inhibitor resistance in shortawn foxtail (Alopecurus aequalis Sobol.)

Molecular basis of ALS- and/or ACCase-inhibitor resistance in shortawn foxtail (Alopecurus aequalis Sobol.)

Resistance to acetyl‐CoA carboxylase‐inhibiting herbicides

Mutations at codon position 1999 of acetyl‐CoA carboxylase confer resistance to ACCase‐inhibiting herbicides in Japanese foxtail (Alopecurus japonicus)

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