Altered acetyl‐coenzyme A carboxylase confers resistance to clethodim, fluazifop and sethoxydim in <i>Setaria faberi</i> and <i>Digitaria sanguinalis</i>

Volenberg, Dean S.; Stoltenberg, David E.

doi:10.1046/j.1365-3180.2002.00294.x

Cited by 30 publications

(39 citation statements)

References 36 publications

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“…In most weeds showing resistance to inhibitors of the enzyme ACCase, this is attributed to alterations in the site of action of the enzyme (Volenberg & Stoltenberg, 2002). However, there are reports correlating resistance to ACCase inhibitors with metabolic processes (Bravin et al 2001).…”

Section: Resultsmentioning

confidence: 99%

Dose-response curves of Lolium multiflorum biotypes resistant and susceptible to clethodim

et al. 2013

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-Chemical control with herbicides, especially glyphosate, is the main method used to control ryegrass. However, the repeated use of glyphosate has selected resistant ryegrass biotypes. Thus, the ACCase inhibitor herbicides have become the main alternative to control glyphosate-resistant biotypes, being widely used by farmers in Rio Grande do Sul. Repeated use of ACCase inhibitors, in turn, have selected ryegrass biotypes resistant to this herbicide mechanism. Thus, the objective of this study was to evaluate the response of ryegrass biotypes to different clethodim rates by dose-response curves. Increasing doses (0, 12, 24, 48, 72, 96, 144 and 192 g a.i. ha -1 ) of the herbicide clethodim were applied at the 3-4 ryegrass leaf stage. The variables control at 14 and 28 days after treatment (DAT) and shoot dry weight were evaluated. The data were fitted by nonlinear regression log-logistic and C 50 and GR 50 were calculated based on the equation. The resistance factor was obtained by the ratio of C 50 or GR 50 of the resistant biotype by matching the susceptible biotype. Based on the equation parameters, the doses of GR 50 64.7 and 234.5 g a.i. ha clethodim were obtained, at 28 DAT for the susceptible and resistant biotypes, respectively. The ryegrass biotype denominated Cotril is resistant to clethodim, being controlled with a dose 15.3 times greater than that of the susceptible biotype, and a 50% reduction of this biotype occurs with a dose 3.62 times higher than that of the susceptible one.Keywords: ryegrass, cyclohexanodiones, herbicide resistance. (0, 12, 24, 48, 72, 96, 144 e 192 RESUMO -

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Section: Resultsmentioning

confidence: 99%

Dose-response curves of Lolium multiflorum biotypes resistant and susceptible to clethodim

et al. 2013

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“…Embora existam vários mecanismos de resistência associados aos herbicidas inibidores da ACCase, a maioria dos casos estudados demonstra que a resistência é conseqüência da insensibilidade enzimática (De Prado et al, 2004;Volemberg & Stoltenberg, 2002). Aparentemente, os diferentes níveis de resistência cruzada apresentados pelos biótipos podem ser explicados pela existência de diferentes padrões da mutação enzimática (Volemberg & Stoltenberg, 2002;Carvalho, 2004) e, também, pelas características de eficácia intrínsecas a cada molécula.…”

Section: Resultsunclassified

“…Aparentemente, os diferentes níveis de resistência cruzada apresentados pelos biótipos podem ser explicados pela existência de diferentes padrões da mutação enzimática (Volemberg & Stoltenberg, 2002;Carvalho, 2004) e, também, pelas características de eficácia intrínsecas a cada molécula. Ainda, supõe-se que a mutação selecionada em determinada região esteja diretamente relacionada com os produtos mais aplicados na área.…”

Section: Resultsunclassified

Suscetibilidade comparativa a herbicidas pós-emergentes de biótipos de Digitaria ciliaris resistente e suscetível aos inibidores da ACCase

López-Ovejero¹,

Carvalho

Nicolai

et al. 2006

Planta daninha

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Esta pesquisa foi conduzida com o objetivo de avaliar a possibilidade de resistência múltipla aos herbicidas inibidores da ACCase, ALS e síntese de carotenos em um biótipo de capim-colchão (Digitaria ciliaris) resistente aos inibidores da ACCase. O experimento foi conduzido em casa de vegetação, utilizando dois biótipos de capim-colchão: um resistente (R) e outro suscetível (S) aos herbicidas inibidores da ACCase. O delineamento experimental utilizado foi o de blocos ao acaso, com quatro repetições. Foram utilizados 11 herbicidas: fluazifop-p-butil, haloxyfop-r-methyl, propaquizafop, sethoxydim, tepraloxydim, clethodim, fenoxaprop + clethodim, imazethapyr, nicosulfuron, iodosulfuron + foramsulfuron e mesotrione. Para cada herbicida, os tratamentos resultaram da combinação fatorial entre os dois biótipos de capim-colchão e 10 doses (0,0D; 0,016D; 0,03D; 0,06D; 0,25D; 0,5D; 1,0D; 2,0D; 4,0D; e 16,0D), em que D é a dose recomendada para cada produto. Os herbicidas foram aplicados sobre as plantas de capim-colchão em estádio de desenvolvimento de 3-4 folhas. Avaliou-se a porcentagem de controle aos 28 dias após a aplicação (DAA). O biótipo R foi confirmado como resistente aos herbicidas inibidores da ACCase (grupos químicos dos ariloxifenoxipropionatos e cicloexanodionas) com níveis variáveis de resistência cruzada. O biótipo R foi controlado satisfatoriamente pela dose de campo de todos os herbicidas alternativos aplicados (sulfoniluréias, imidazolinonas e inibidores da síntese de caroteno), excluindo a hipótese de resistência múltipla nesse biótipo de capim-colchão.

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“…When the same population was sprayed with imazethapyr, nicosulfuron or clethodim few to no plants survived (Stoltenberg and Wiederholt 1995). In a similar study, S. faberi cross resistance to fluazifop-P-butyl was identified in a vegetable cropping system in Wisconsin where the resistant biotype was 10.6-and 319-fold more resistant than the susceptible biotype (Volenberg and Stoltenberg 2002a). Greenhouse experiments have shown that the outcrossing rates between ACCase susceptible and ACCase resistant parent plants are low and range from 0.24 to 0.73% (Volenberg and Stoltenberg 2002b).…”

Section: Herbicide Resistancementioning

confidence: 94%

The Biology of Canadian Weeds. 141. Setaria faberi Herrm.

Nurse¹,

Darbyshire²,

Bertin³

et al. 2009

Can. J. Plant Sci.

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known as giant foxtail, is an annual graminaceous weed that is native to eastern China, has colonized eastern North America and is expanding its range westward. This species is primarily self-pollinated and the only mechanism of reproduction is by seed. Adult plants may reach 2 m in height and produce over 2000 seeds per panicle. Seeds may possess non-deep physiological dormancy when freshly produced, and can form small persistent seed banks. If not controlled, S. faberi populations can cause severe yield reductions in corn and soybean crops. Several herbicides are available to provide chemical control; however, resistance to some modes of action, (ALS, ACCase, and Photosystem II) have been identified in Canada and the United States. Leaves and seeds of this species provide a food source to several species of mammals, birds, and insects.

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Altered acetyl‐coenzyme A carboxylase confers resistance to clethodim, fluazifop and sethoxydim in Setaria faberi and Digitaria sanguinalis

Cited by 30 publications

References 36 publications

Dose-response curves of Lolium multiflorum biotypes resistant and susceptible to clethodim

Dose-response curves of Lolium multiflorum biotypes resistant and susceptible to clethodim

Suscetibilidade comparativa a herbicidas pós-emergentes de biótipos de Digitaria ciliaris resistente e suscetível aos inibidores da ACCase

The Biology of Canadian Weeds. 141. Setaria faberi Herrm.

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