Full TGIF Record # 268300
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DOI:10.1002/ps.3995
Web URL(s):http://onlinelibrary.wiley.com/doi/10.1002/ps.3995/epdf
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Publication Type:
i
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
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
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
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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
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