2018
DOI: 10.1590/s0100-83582018360100119
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Abstract: Non-target site (NTS) herbicide resistance by degradation enhancement is an increasing problem in several weeds around the world. In this study, the occurrence of degradation enhancement by cytochrome P450 monooxygenases (cytP450) was evaluated as the mechanism of resistance to imazethapyr in barnyardgrass. The cytP450 inhibitors malathion and piperonyl butoxide (PBO) and the inducer naphthalic anhydride (NA), applied in mixture or sequentially with imazethapyr, were evaluated on imidazolinone-susceptible and … Show more

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Cited by 11 publications
(12 citation statements)
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“…NA is a safaner protects plants from herbicide injuries by several means. It increases herbicide conjugation with GSH by GST ( Deng and Hatzios, 2003 ) or their hydroxylation by cytP450 ( Dalazen et al., 2018 ). Moreover, Hwang et al.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…NA is a safaner protects plants from herbicide injuries by several means. It increases herbicide conjugation with GSH by GST ( Deng and Hatzios, 2003 ) or their hydroxylation by cytP450 ( Dalazen et al., 2018 ). Moreover, Hwang et al.…”
Section: Discussionmentioning
confidence: 99%
“…So, exogenous supporters are needed to protect the plant from herbicides for withstanding the stress conditions. NA enhanced the conjugation of several herbicides with GSH ( Deng and Hatzios, 2003 ) or hydroxylation by cytP450 ( Dalazen et al., 2018 ). Safener-induced protection in cereals is associated with increased GSH content and increased expression of herbicide detoxifying enzymes, including GSTs ( DeRidder et al., 2002 ).…”
Section: Introductionmentioning
confidence: 99%
“…ha -1 for both (Dalazen et al, 2016). This dose was not applied in the study in question for PBO, but Dalazen et al (2018) found that the gradual increase in the dose of the inhibitor does not increase control response for plants resistant to ALS by metabolization in barnyard grass.…”
Section: Discussionmentioning
confidence: 99%
“…This, together with previous identification of metabolization of herbicides by barnyard grass, indicates high complexity of herbicide resistance in this species. Other studies have found that such complexity significantly restricts the number of active ingredients that can be used effectively for control of this weed (Muthukumar et al, 2017;Dalazen et al, 2018). Eberhardt et al, (2016) evaluated the response of E. crusgalli to different herbicides in the state of Santa Catarina that had difficulties to be controlled with registered herbicides.…”
Section: Discussionmentioning
confidence: 99%
“…E. crus-galli increased metabolism was identified in imazethapyr resistant biotypes, with overexpression of the GST and CYP gene families. 6,23,24 In E. phyllopogon, the highest expressions of CYP81A12 and CYP81A21 genes are associated with penoxsulam and bensulfuron-methyl resistance, 25 while the highest expressions of CYP71AK2 and CYP72A254 genes are related to bispyribac-sodium. 26 In addition, these CYP81A12 and CYP81A21 genes are involved in concomitant cross-resistance to ACCase herbicides in the same E. phyllopogon-resistant biotype.…”
Section: Introductionmentioning
confidence: 99%