Clopyralid Uptake, Translocation, Metabolism, and Ethylene Induction in Picloram-Resistant Yellow Starthistle (Centaurea solstitialis L.)

Valenzuela-Valenzuela, Juan M; Lownds, Norman K.; Sterling, Tracy M.

doi:10.1006/pest.2001.2560

Cited by 21 publications

(22 citation statements)

References 19 publications

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“…Herbicide resistance mechanisms have been categorized into two types, (a) non‐target‐site, involving decreased absorption, translocation and/or enhanced herbicide metabolism, and (b) target‐site, resulting from mutations in the target gene or increases in levels of the target protein through gene amplification or transcriptional upregulation . Previous research found that auxinic herbicide resistance in wild mustard ( Sinapis arvensis ), false cleavers ( Galium spurium ), kochia ( Kochia scoparia ), and yellow starthistle ( Centaurea solstitialis ) was not attributable to differences in herbicide absorption, translocation and/or metabolism and, by deduction, might be attributable to other mechanisms, such as altered target site. A different dicamba‐resistant K. scoparia population was found to have reduced dicamba translocation …”

Section: Discussionmentioning

confidence: 99%

Metabolism of 2,4‐dichlorophenoxyacetic acid contributes to resistance in a common waterhemp (Amaranthus tuberculatus) population

Figueiredo

Leibhart

Reicher

et al. 2018

Pest Management Science

109

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Figueiredo, Marcelo R. A.; Leibhart, Lacy J.; Reicher, Zachary J.; Tranel, Patrick J.; Nissen, Scott J.; Westra, Philip; Bernards, Mark L.; Kruger, Greg R.; Gaines, Todd A.; and Jugulam, Mithila, "Metabolism of 2,4-dichlorophenoxyacetic acid contributes to resistance in a common waterhemp (Amaranthus tuberculatus) population" (2017 This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1002/ps.

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Section: Discussionmentioning

confidence: 99%

Metabolism of 2,4‐dichlorophenoxyacetic acid contributes to resistance in a common waterhemp (Amaranthus tuberculatus) population

Figueiredo

Leibhart

Reicher

et al. 2018

Pest Management Science

109

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“…The characterization of resistance mechanisms has been investigated in few auxinic herbicide-resistant weeds. Differential absorption, translocation, or metabolism were not the basis for resistance in the majority of the assessed species [11][12][13][14][15]. Only in a few weeds these non-target-site mechanisms (NTSM) have been related with the resistance response [3,16,17].…”

Section: Introductionmentioning

confidence: 96%

“…Only in a few weeds these non-target-site mechanisms (NTSM) have been related with the resistance response [3,16,17]. Additionally, it has been reported that the application of auxinic herbicides stimulates ethylene biosynthesis in sensitive, but not in resistant plants [13,15,18]. This unregulated auxin response and the resulting hyperaccumulation of ethylene, abscisic acid (ABA) and reactive oxygen species (ROS) in auxinic herbicide sensitive plants may be involved in the induction of tissue damage and cell death after synthetic auxins application [19].…”

Section: Introductionmentioning

confidence: 99%

Unravelling the resistance mechanisms to 2,4-D (2,4-dichlorophenoxyacetic acid) in corn poppy (Papaver rhoeas)

Rey-Caballero

Menéndez

Giné-Bordonaba

et al. 2016

Pesticide Biochemistry and Physiology

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In southern Europe, the intensive use of 2,4-D (2,4-dichlorophenoxyacetic acid) and tribenuron-methyl in cereal crop systems has resulted in the evolution of resistant (R) corn poppy (Papaver rhoeas L.) biotypes. Experiments were conducted to elucidate (1) the resistance response to these two herbicides, (2) the cross-resistant pattern to other synthetic auxins and (3) the physiological basis of the auxin resistance in two R (F-R213 and D-R703) populations. R plants were resistant to both 2,4-D and tribenuron-methyl (F-R213) or just to 2,4-D (D-R703) and both R populations were also resistant to dicamba and aminopyralid. Results from absorption and translocation experiment revealed that R plants translocated less [14C]-2,4-D than S plants at all evaluation times. There was between four and eight-fold greater ethylene production in S plants treated with 2,4-D, than in R plants. Overall, these results suggest that reduced 2,4-D translocation is the resistance mechanism in synthetic auxins R corn poppy populations and this likely leads to less ethylene production and greater survival in R plants.

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“…The mechanism of resistance in most of the auxinic herbicide‐resistant species is not known. Absorption, translocation, root exudation or metabolism were not responsible for auxinic herbicide resistance in several weed biotypes including Centaurea solstitialis L. (Valenzuela‐Valenzuela et al. , 2001), Kochia scoparia L. (Cranston et al.…”

Section: Introductionmentioning

confidence: 99%

“…In the aforementioned auxinic herbicide‐resistant biotypes, the mechanism of resistances is hypothesized to be due to altered auxin binding to the target site or altered signal transduction along the auxin pathway (Penuik et al. , 1993; Valenzuela‐Valenzuela et al. , 2001, 2002; Goss & Dyer, 2003).…”

Section: Introductionmentioning

confidence: 99%

Resistance to quinclorac and ALS‐inhibitor herbicides in Galium spurium is conferred by two distinct genes

et al. 2004

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Summary Classical Mendelian experiments were conducted to determine the genetics and inheritance of quinclorac and acetolactate synthase (ALS)‐inhibitor resistance in a biotype of Galium spurium. Plants were screened with the formulated product of either quinclorac or the ALS‐inhibitor, thifensulfuron, at the field dose of 125 or 6 g active ingredient (a.i.) ha−1 respectively. Segregation in the F2 generation indicated that quinclorac resistance was a single, recessive nuclear trait, based on a 1 : 3 segregation ratio [resistant : susceptible (R : S)]. Resistance to ALS inhibitors was due to a single, dominant nuclear trait, segregating in the F2 generation in a 3 : 1 ratio (R : S). The genetic models were confirmed by herbicide screens of F1 and backcrosses between the F1 and the S parent. F2 plants that survived quinclorac treatment set seed and the resulting F3 progeny were screened with either herbicide. Quinclorac‐treated F3 plants segregated in a 1 : 0 ratio (R : S), hence F2 progenitors were homozygous for quinclorac resistance. In contrast, F3 progeny segregated into three ratios: 1 : 0, 3 : 1 and 0 : 1 (R : S) in response to ALS‐inhibitor treatment. This segregation pattern indicates that their F2 parents were either homozygous or heterozygous for ALS‐inhibitor resistance. Therefore, there were clearly two distinct resistance mechanisms encoded by two genes that were not tightly linked as demonstrated by segregation patterns of the F3.

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Clopyralid Uptake, Translocation, Metabolism, and Ethylene Induction in Picloram-Resistant Yellow Starthistle (Centaurea solstitialis L.)

Cited by 21 publications

References 19 publications

Metabolism of 2,4‐dichlorophenoxyacetic acid contributes to resistance in a common waterhemp (Amaranthus tuberculatus) population

Metabolism of 2,4‐dichlorophenoxyacetic acid contributes to resistance in a common waterhemp (Amaranthus tuberculatus) population

Unravelling the resistance mechanisms to 2,4-D (2,4-dichlorophenoxyacetic acid) in corn poppy (Papaver rhoeas)

Resistance to quinclorac and ALS‐inhibitor herbicides in Galium spurium is conferred by two distinct genes

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