scholarly journals No Vegetative and Fecundity Fitness Cost Associated with Acetyl-Coenzyme A Carboxylase Non-target-site Resistance in a Black-Grass (Alopecurus myosuroides Huds) Population

2017 ◽  
Vol 8 ◽  
Author(s):  
Eshagh Keshtkar ◽  
Solvejg K. Mathiassen ◽  
Per Kudsk
Keyword(s):  
Coenzyme A ◽  
Target Site ◽  
Fitness Cost ◽  
Acetyl Coenzyme A ◽  
Alopecurus Myosuroides ◽  
Acetyl Coenzyme ◽  
Target Site Resistance ◽  
Acetyl Coenzyme A Carboxylase

scholarly journals Geographical variation in resistance to acetyl-coenzyme A carboxylase-inhibiting herbicides across the range of the arable weed Alopecurus myosuroides (black-grass)

2010 ◽  
Vol 186 (4) ◽  
pp. 1005-1017 ◽  
Author(s):  
Christophe Délye ◽  
Séverine Michel ◽  
Aurélie Bérard ◽  
Bruno Chauvel ◽  
Dominique Brunel ◽  
...  
Keyword(s):  
Geographical Variation ◽  
Coenzyme A ◽  
Acetyl Coenzyme A ◽  
Alopecurus Myosuroides ◽  
Acetyl Coenzyme ◽  
Arable Weed ◽  
Acetyl Coenzyme A Carboxylase

Characterization of Fenoxaprop-P-Ethyl–Resistant Junglerice (Echinochloa colona) from Mississippi

Weed Science ◽  
2016 ◽  
Vol 64 (4) ◽  
pp. 588-595 ◽  
Author(s):  
Alice A. Wright ◽  
Vijay K. Nandula ◽  
Logan Grier ◽  
Kurt C. Showmaker ◽  
Jason A. Bond ◽  
...  
Keyword(s):  
Coenzyme A ◽  
Point Mutations ◽  
Target Site ◽  
Acetyl Coenzyme A ◽  
Acetyl Coenzyme ◽  
Resistant Population ◽  
Sunflower County ◽  
Acetyl Coenzyme A Carboxylase ◽  
P450 Inhibitors

A population of junglerice from Sunflower County, MS, exhibited resistance to fenoxaprop-P-ethyl. An 11-fold difference in ED50 (the effective dose needed to reduce growth by 50%) values was observed when comparing the resistant population (249 g ae ha–1) with susceptible plants (20 g ae ha–1) collected from a different field. The resistant population was controlled by clethodim and sethoxydim at the field rate. Sequencing of the acetyl coenzyme A carboxylase, which encodes the enzyme targeted by fenoxaprop-P-ethyl, did not reveal the presence of any known resistance-conferring point mutations. An enzyme assay confirmed that the acetyl coenzyme A carboxylase in the resistant population is herbicide sensitive. Further investigations with two cytochrome P450 inhibitors, malathion and piperonyl butoxide, and a glutathione-S-transferase inhibitor, 4-chloro-7-nitrobenzofurazan, did not indicate involvement of any metabolic enzymes inhibited by these compounds. The absence of a known target-site point mutation and the sensitivity of the ACCase enzyme to herbicide show that fenoxaprop-P-ethyl resistance in this population is due to a non–target-site mechanism or mechanisms.

scholarly journals Status of black grass (Alopecurus myosuroides) resistance to acetyl-coenzyme A carboxylase inhibitors in France

Weed Research ◽  
2007 ◽  
Vol 47 (2) ◽  
pp. 95-105 ◽  
Author(s):  
C DÉLYE ◽  
Y MENCHARI ◽  
J-P GUILLEMIN ◽  
A MATÉJICEK ◽  
S MICHEL ◽  
...  
Keyword(s):  
Coenzyme A ◽  
Acetyl Coenzyme A ◽  
Alopecurus Myosuroides ◽  
Acetyl Coenzyme ◽  
Acetyl Coenzyme A Carboxylase

scholarly journals Multiple resistance to acetolactate synthase (ALS)- and acetyl-coenzyme A carboxylase (ACCase)-inhibiting herbicides in black-grass (Alopecurus myosuroides Huds.) populations from Poland

2016 ◽  
Vol 56 (4) ◽  
pp. 402-410 ◽  
Author(s):  
Kazimierz Adamczewski ◽  
Roman Kierzek ◽  
Kinga Matysiak
Keyword(s):  
Coenzyme A ◽  
Acetolactate Synthase ◽  
Cross Resistance ◽  
Multiple Resistance ◽  
Acetyl Coenzyme A ◽  
Alopecurus Myosuroides ◽  
Acetyl Coenzyme ◽  
Resistance To Herbicides ◽  
Acetyl Coenzyme A Carboxylase ◽  
Derivatives Of

AbstractAlopecurus myosuroides seeds were sampled from 32 winter wheat fields from 2010 to 2014. Resistance to herbicides was detected in 17 A. myosuroides populations. In addition to single resistance to herbicides, cross-resistance and multiple resistance to acetolactate synthase (ALS)- and acetyl-coenzyme A carboxylase (ACCase)-inhibiting herbicides were found. Application of sulfometuron and imazapyr was unable to control some of the resistant biotypes in this study. This result implies that resistance in these populations is due to a target site mechanism. The A. myosuroides biotypes resistant to ACCase-inhibiting herbicides varied in their responses to derivatives of aryloxy-phenoxy-propionic acid (FOPs), cyclohexanediones (DIMs) and phenylpyrazolines (DENs). Resistant biotypes of A. myosuroides that could not be controlled with fenoxaprop-P-ethyl (FOP) and pinoxaden (DEN) were controlled with clethodim (DIM).

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