Impact of Host Plants on Detoxification Enzyme Activities to Certain Compounds Efficacy against the Cotton Leafworm, Spodoptera littoralis (Boisd.)

El-Rahman, Soheir F. Abd; Salem, Mahmoud; S., Yacoub Sh.; Naguib, Nancy H.

doi:10.21608/eajbsa.2019.37716

Cited by 1 publication

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“…There is growing and compelling evidence that adaptation to toxic host plants has been a factor in the evolution of insecticide resistance in some herbivore species (Alyokhin & Chen, 2017; Ryan & Byrne, 1988). For example, the susceptibility of Spodoptera littoralis to pesticides differs with host plants by impacting detoxification enzyme levels (Abd El‐Rahman, Salem, Yacoub, & Naguib, 2019). Because it is possible for SSB larvae to directly consume Si, we hypothesized that SS exposures may also directly impact the pest's ability to detoxify insecticides.…”

Section: Introductionmentioning

confidence: 99%

Silicon‐mediated multiple interactions: Simultaneous induction of rice defense and inhibition of larval performance and insecticide tolerance of Chilo suppressalis by sodium silicate

Wang

Xue

et al. 2020

Ecology and Evolution

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The rice striped stem borer (SSB, Chilo suppressalis) is one of the most destructive pests of rice plants. Si‐mediated rice defense against various pests has been widely reported, and sodium silicate (SS) has been used as an effective source of silicon for application to plants. However, there is quite limited information about the direct effects of Si application on herbivorous insects. SSB larval performance and their insecticide tolerance were examined after they had been reared either on rice plants cultivated in nutrient solution containing 0.5 and 2.0 mM SS or on artificial diets with 0.1% and 0.5% SS. SS amendment in either rice culture medium or artificial diets significantly suppressed the enzymatic activities of acetylcholinesterase, glutathione S‐transferases, and levels of cytochrome P450 protein in the midgut of C. suppressalis larvae. Larvae fed on diets containing SS showed lower insecticide tolerance. Additionally, RNA‐seq analysis showed that SS‐mediated larval insecticide tolerance was closely associated with fatty acid biosynthesis and pyruvate metabolism pathways. Our results suggest that Si not only enhances plant resistance against insect herbivore, but also impairs the insect's capacity to detoxify the insecticides. This should be considered as another important aspect in Si‐mediated plant–insect interaction and may provide a novel approach of pest management.

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Section: Introductionmentioning

confidence: 99%

Silicon‐mediated multiple interactions: Simultaneous induction of rice defense and inhibition of larval performance and insecticide tolerance of Chilo suppressalis by sodium silicate

Wang

Xue

et al. 2020

Ecology and Evolution

View full text Add to dashboard Cite

show abstract

Impact of Host Plants on Detoxification Enzyme Activities to Certain Compounds Efficacy against the Cotton Leafworm, Spodoptera littoralis (Boisd.)

Abstract: Entomology Journal publishes original research papers and reviews from any entomological discipline or from directly allied fields in ecology, behavioral biology,

Cited by 1 publication

References 15 publications

Silicon‐mediated multiple interactions: Simultaneous induction of rice defense and inhibition of larval performance and insecticide tolerance of Chilo suppressalis by sodium silicate

Silicon‐mediated multiple interactions: Simultaneous induction of rice defense and inhibition of larval performance and insecticide tolerance of Chilo suppressalis by sodium silicate

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