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DOI: | 10.1002/ps.3995 |
Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1002/ps.3995/epdf Last checked: 01/29/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website http://onlinelibrary.wiley.com/doi/10.1002/ps.3995/full Last checked: 01/29/2016 Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Han, Heping;
Yu, Qin;
Owen, Mechelle J.;
Cawthray, Gregory R.;
Powles, Stephen B. |
Author Affiliation: | Han, Yu, Owen, and Powles: Australian Herbicide Resistance Initiative; Cawthray: School of Plant Biology, University of Western Australia, Crawley, WA, Australia |
Title: | Widespread occurrence of both metabolic and target-site herbicide resistance mechanisms in Lolium rigidum populations |
Section: | Research articles Other records with the "Research articles" Section
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Source: | Pest Management Science. Vol. 72, No. 2, February 2016, p. 255-263. |
Publishing Information: | Barking, Essex, United Kingdom: Elsevier Science Publishers Ltd. |
# of Pages: | 9 |
Related Web URL: | http://onlinelibrary.wiley.com/doi/10.1002/ps.3995/abstract Last checked: 01/29/2016 Notes: Abstract only |
Keywords: | TIC Keywords: Acetolactate synthase-inhibiting herbicides; Acetyl-CoA carboxylase inhibitors; Cultivar evaluation; Diclofop; Genetic resistance; Herbicide efficacy; Herbicide metabolism; Herbicide resistance; Lolium rigidum; Population genetics; Regional variation; Variety trials
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Abstract/Contents: | "BACKGROUND: Lolium rigidum populations in Australia and globally have demonstrated rapid and widespread evolution of resistance to acetyl coenzyme A carboxylase (ACCase)-inhibiting and acetolactate synthase (ALS)-inhibiting herbicides. Thirty-three resistant L. rigidum populations, randomly collected from crop fields in a most recent resistance survey, were analysed for non-target-site diclofop metabolism and all known target-site ACCase gene resistance-endowing mutations. RESULTS: The HPLC profile of[14C]-diclofop-methyl in vivo metabolism revealed that 79% of these resistant L. rigidum populations showed enhanced capacity for diclofop acid metabolism (metabolic resistance). ACCase gene sequencing identified that 91% of the populations contain plants with ACCase resistance mutation(s). Importantly, 70% of the populations exhibit both non-target-site metabolic resistance and target-site ACCase mutations. CONCLUSIONS: This work demonstrates that metabolic herbicide resistance is commonly occurring in L. rigidum, and coevolution of both metabolic resistance and target-site resistance is an evolutionary reality. Metabolic herbicide resistance can potentially endow resistance to many herbicides and poses a threat to herbicide sustainability and thus crop production, calling for major research and management efforts." |
Language: | English |
References: | 43 |
Note: | Map Equation Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Han, H., Q. Yu, M. J. Owen, G. R. Cawthray, and S. B. Powles. 2016. Widespread occurrence of both metabolic and target-site herbicide resistance mechanisms in Lolium rigidum populations. Pest Management Science. 72(2):p. 255-263. |
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| DOI: 10.1002/ps.3995 |
| Web URL(s): http://onlinelibrary.wiley.com/doi/10.1002/ps.3995/epdf Last checked: 01/29/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website http://onlinelibrary.wiley.com/doi/10.1002/ps.3995/full Last checked: 01/29/2016 Access conditions: Item is within a limited-access website |
| MSU catalog number: b2219665 |
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