Toxicity of essential oil compounds against diamondback moth, Plutella xylostella, and their impact on detoxification enzyme activities

Kumrungsee, Nutchaya; Pluempanupat, Wanchai; Koul, Opender; Bullangpoti, Vasakorn

doi:10.1007/s10340-014-0602-6

Cited by 99 publications

(73 citation statements)

References 54 publications

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“…Based on the highest toxicity of thymyl cinnamate, the detoxification results showed that thymyl cinnamate affected the increasing of CE activity, whereas no significant increase was obtained in GST activity. Similar results were reported by Kumrungsee and Caballero, who found that both GST and CE activities were significantly increased in thymol‐treated larvae, and the GST activity was not significantly increased by the treatment of limonoid mixtures at a concentration below 1000 ppm, respectively. The increase in carboxylesterase activity may have been due to the uptake of the active compound by the insect, which progressively increased the amount of active components in the insect's body or a general induction of detoxification genes in response to secondary metabolites in the early stage of exposure .…”

Section: Discussionsupporting

confidence: 89%

“…Thymol is one of the phenolic monoterpenes found as a major component in many essential oil‐baring plants such as Thymus vulgaris and Origanum vulgare , which are generally recognized as safe (GRAS) by the FDA. Thymol shows more toxicity to many insects than the other monoterpenes . For example, we recently reported that thymol was more toxic as compared to 1,8‐cineole, linalool and pulegone against Plutella xylostella .…”

Section: Introductionmentioning

confidence: 99%

“…Thymol shows more toxicity to many insects than the other monoterpenes. [10][11][12] For example, we recently reported that thymol was more toxic as compared to 1,8-cineole, linalool and pulegone against Plutella xylostella. 10 Moreover, the toxicity comparison between Cotesia plutellae and P. xylostella revealed that thymol was less toxic to the parasitoid C. plutellae than to the host larvae P. xylostella about 62 times.…”

Section: Introductionmentioning

confidence: 99%

“…[10][11][12] For example, we recently reported that thymol was more toxic as compared to 1,8-cineole, linalool and pulegone against Plutella xylostella. 10 Moreover, the toxicity comparison between Cotesia plutellae and P. xylostella revealed that thymol was less toxic to the parasitoid C. plutellae than to the host larvae P. xylostella about 62 times. 13 Our results supported that thymol is considered safe for use as a botanical insecticide and has the potential to modify its chemical structure for the development of novel insecticides.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of thymyl esters and their insecticidal activity against Spodoptera litura (Lepidoptera: Noctuidae)

Tharamak

Yooboon

Pengsook

et al. 2019

Pest Management Science

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BACKGROUND Thymol, a natural phenolic monoterpene originating from Thymus vulgaris, is recognized as a safe and potent botanical insecticide to many insects. The structural modification of thymol into thymyl esters is a potential approach for the development of novel insecticides, which showed more toxicity than thymol. However, there are no reports on the insecticidal activity of thymyl esters to control Spodoptera litura. RESULTS Thymol was structurally modified into ten thymyl esters by esterification using a new reagent, PPh3/Br3CSO2Ph. The insecticidal activity of these compounds was examined against the second instars of Spodoptera litura using a topical application. Among the ten thymyl esters evaluated, thymyl cinnamate was the most toxic with LD50 = 0.41 and 0.34 μg/larva after 24 and 48 h posttreatment, respectively. In addition, thymyl cinnamate‐treated larvae showed increasing carboxylesterase and acetylcholinesterase activities in vivo experiment, whereas glutathione S‐transferase activity showed no significant difference. CONCLUSION Thymyl cinnamate were first reported to exhibit toxicity against S. litura 2.41–2.46 fold more efficient than thymol. However, the detailed biochemical interactions are necessary for further development of novel insecticides. © 2019 Society of Chemical Industry

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Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis of thymyl esters and their insecticidal activity against Spodoptera litura (Lepidoptera: Noctuidae)

Tharamak

Yooboon

Pengsook

et al. 2019

Pest Management Science

Self Cite

View full text Add to dashboard Cite

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“…The idea supporting the use of such substances derives from the evolution of natural plant defence mechanisms, for which plants have developed an array of secondary metabolites used to protect themselves against herbivores and pathogens 18 . The route of exposure, the environmental conditions and the physiological status of the target organism can affect the toxicity of botanicals 19–21 . These substances have then been tested against a large number of arthropod pests, such as ingestion larvicides 22 , contacticides 23 , fumigants 24 , repellents 25,26 and antifeedants 27 .…”

Section: Introductionmentioning

confidence: 99%

Citrus peel essential oil nanoformulations to control the tomato borer, Tuta absoluta: chemical properties and biological activity

Campolo

Cherif

Ricupero

et al. 2017

Sci Rep

152

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The repeated use of conventional synthetic pesticides in crop protection leads to resistance development by pests along with a negative impact on the environment, particularly non-target arthropods. Plant-derived active compounds, such as essential oils (EOs), play a key role in sustainably controlling pests. The lethal and sublethal activity of citrus peel EOs as emulsions and included in polyethylene glycol (PEG) nanoparticles (EO-NPs) was determined against the invasive tomato pest Tuta absoluta. Their effects on the plants were also assessed. The results showed an overall good insecticidal activity of the compounds tested, with a higher mortality through contact on eggs and larvae by EO emulsions and through ingestion on larvae by EO-NPs. The nanoformulation also significantly reduced the visible toxic effects on the plants. The data collected suggest that these natural compounds, especially when nanoformulated, could be successfully used in integrated pest management programs for T. absoluta.

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Cytotoxic effects of β‐asarone on Sf9 insect cells

Yooboon

Kuramitsu

Bullangpoti

et al. 2019

Arch Insect Biochem Physiol

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β-Asarone is the predominant component of the essential oil of rhizomes of Acorus calamus Linn ( Sweet flag). Although rhizome extracts from this plant have long been used for insect pest control, their cytotoxic effects on insect cells are not well understood. In this study, we evaluated the potency of β-asarone as a natural insecticide by using a Spodoptera frugiperda cell line (Sf9). To assess the cytotoxic effects of β-asarone on Sf9 cells, we observed morphologic changes in treated cells and performed a cell proliferation assay and a DNA fragmentation assay. After 24 and 48 h of treatment with β-asarone, the proliferation of the Sf9 cells was inhibited in a dose-dependent manner, with IC 50 values of 0.558 mg/ml at 24 h and 0.253 mg/ml at 48 h. Morphologic changes in β-asarone-treated cells were typical of apoptosis and included loss of adhesion, cell shrinkage, and small apoptotic bodies. The DNA laddering present in β-asarone-treated SF9 cells and annexin V assay confirmed that this compound can induce apoptosis in insect cells.Together, these findings suggest that apoptosis induction may be one mechanism through which β-asarone inhibits the proliferation of insect cells and thus exerts insecticidal effects. K E Y W O R D S apoptosis, botanical pesticide, cell toxicity, Sf9, β-asarone

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Toxicity of essential oil compounds against diamondback moth, Plutella xylostella, and their impact on detoxification enzyme activities

Cited by 99 publications

References 54 publications

Synthesis of thymyl esters and their insecticidal activity against Spodoptera litura (Lepidoptera: Noctuidae)

Synthesis of thymyl esters and their insecticidal activity against Spodoptera litura (Lepidoptera: Noctuidae)

Citrus peel essential oil nanoformulations to control the tomato borer, Tuta absoluta: chemical properties and biological activity

Cytotoxic effects of β‐asarone on Sf9 insect cells

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