Transcriptome profile analysis reveals the emamectin benzoate-induced genes associated with olfaction and metabolic detoxification in
            <i>Spodoptera exigua</i>
            Hübner (Lepidoptera: noctuidae)

Sun, Yuhan; Tao, Si-Min; Zhang, Wen; Jiang, Bin; Hanyang, Dai; Liu, Baosheng; Zhang, Yongjun; Kong, Xiang-Dong; Zhao, Jing; Bai, Liang

doi:10.1080/26895293.2022.2052190

Cited by 2 publications

(2 citation statements)

References 76 publications

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“…In agreement with the three possible routes, flavone is known to up- and down-regulate 295 and 125 genes, respectively, in Spodopera litura [ 61 ], a sister species of S. frugiperda , and 38 and 10 genes, respectively, in H. armigera [ 62 ]. By the same token, emamectin can up- and down-regulate 599 and 1658 genes, respectively, in the predatory beetle Paederus fuscipes [ 63 ], and 1495–2784 and 1622–2351 genes, respectively, in Spodoptera exigua , depending on the dose of emamectin [ 64 ]. Additional experiments are required to illuminate how flavone and emamectin induce and elevate the potency of Vip3A to S. frugiperda .…”

Section: Discussionmentioning

confidence: 99%

“…Such unidirectional sequential inhibition and unidirectional cross-resistance between insecticides and anti-herbivore allelochemicals are probably prompted by the absence of behavioral adjustment to the repellent and/or antifeedant influences of plant allelochemicals in insecticide pre-exposed individuals or survivors, rather than by the lack of metabolic adaptation [ 67 ]. After all, insecticides are also capable of inducing metabolic enzymes [ 64 , 67 ], and at least some of the induced or selected detoxification enzymes are capable of metabolizing both insecticides and allelochemicals [ 67 ].…”

Section: Discussionmentioning

confidence: 99%

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Sequential and Simultaneous Interactions of Plant Allelochemical Flavone, Bt Toxin Vip3A, and Insecticide Emamectin Benzoate in Spodoptera frugiperda

Huang,

He,

Wang

et al. 2023

Insects

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Target pests of genetically engineered crops producing both defensive allelochemicals and Bacillus thuringiensis (Bt) toxins often sequentially or simultaneously uptake allelochemicals, Bt toxins, and/or insecticides. How the three types of toxins interact to kill pests remains underexplored. Here we investigated the interactions of Bt toxin Vip3A, plant allelochemical flavone, and insecticide emamectin benzoate in Spodoptera frugiperda. Simultaneous administration of flavone LC25 + Vip3A LC25, emamectin benzoate LC25 + Vip3A LC25, and flavone LC15 + emamectin benzoate LC15 + Vip3A LC15 but not flavone LC25 + emamectin LC25 yielded a mortality significantly higher than their expected additive mortality (EAM). One-day pre-exposure to one toxin at LC5 followed by six-day exposure to the same toxin at LC5 plus another toxin at LC50 showed that the mortality of flavone LC5 + Vip3A LC50, emamectin benzoate LC5 + Vip3A LC50, and Vip3A LC5 + emamectin benzoate LC50 were significantly higher than their EAM, while that of flavone LC5 + emamectin benzoate LC50 was significantly lower than their EAM. No significant difference existed among the mortalities of Vip3A LC5 + flavone LC50, emamectin benzoate LC5 + flavone LC50, and their EAMs. The results suggest that the interactions of the three toxins are largely synergistic (inductive) or additive, depending on their combinations and doses.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Sequential and Simultaneous Interactions of Plant Allelochemical Flavone, Bt Toxin Vip3A, and Insecticide Emamectin Benzoate in Spodoptera frugiperda

Huang,

He,

Wang

et al. 2023

Insects

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show abstract

Sequential and Simultaneous Interactions of Plant Allelochemical Flavone, Bt Toxin Vip3A and Insecticide Emamectin Benzoate in <em>Spodoptera frugiperda</em>

Huang¹,

He²,

Wang³

et al. 2023

Preprint

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Target pests of genetically engineered crops producing both defensive allelochemicals and Bacillus thuringiensis (Bt) toxins often sequentially or simultaneously uptake allelochemicals, Bt toxins, and/or insecticides. How the three types of toxins interact to kill pests remains underexplored. Here we investigated the interactions of Bt toxin Vip3A, plant allelochemical flavone, and insecticide emamectin benzoate in Spodoptera frugiperda. Simultaneous administration of flavone LC25 + Vip3A LC25, emamectin benzoate LC25 + Vip3A LC25, and flavone LC15 + emamectin benzoate LC15 + Vip3A LC15 but not flavone LC25 + emamectin LC25 yielded a mortality significantly higher than their expected additive mortality (EAM). One-day preexposure to one toxin at LC5 followed by 6-day exposure to the same toxin at LC5 plus another toxin at LC50 showed that the mortality of flavone LC5 + Vip3A LC50, emamectin benzoate LC5 + Vip3A LC50, and Vip3A LC5 + emamectin benzoate LC50, were significantly higher than their EAM, while that of flavone LC5 + emamectin benzoate LC50 was significantly lower than their EAM. No significant difference existed among the mortalities of Vip3A LC5 + flavone LC50, emamectin benzoate LC5 + flavone LC50, and their EAMs. The results suggest that the interactions of the three toxins are largely synergistic (inductive) or additive, depending on their combinations and doses.

show abstract

Transcriptome profile analysis reveals the emamectin benzoate-induced genes associated with olfaction and metabolic detoxification in Spodoptera exigua Hübner (Lepidoptera: noctuidae)

Cited by 2 publications

References 76 publications

Sequential and Simultaneous Interactions of Plant Allelochemical Flavone, Bt Toxin Vip3A, and Insecticide Emamectin Benzoate in Spodoptera frugiperda

Sequential and Simultaneous Interactions of Plant Allelochemical Flavone, Bt Toxin Vip3A, and Insecticide Emamectin Benzoate in Spodoptera frugiperda

Sequential and Simultaneous Interactions of Plant Allelochemical Flavone, Bt Toxin Vip3A and Insecticide Emamectin Benzoate in <em>Spodoptera frugiperda</em>

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