Influence of Neem Oil on Detoxication Enzyme Activity in the Obliquebanded Leafroller,Choristoneura rosaceana

Smirle, Michael J.; Lowery, D. Thomas; Zurowski, Cheryl L.

doi:10.1006/pest.1996.0075

Cited by 66 publications

(28 citation statements)

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“…Similar results were obtained when L. decemlineata larvae were fed on potato leaves treated with F18 (Ortego et al, 1999). Likewise, Smirle et al (1996) reported that ingestion of neem oil significantly reduced esterase activities in larvae and adults of Choristoneura rosaceana (Harris). Other secondary metabolites that have been reported to inhibit esterase activity are the hydroxamic acid DIMBOA (Yan et al, 1995;Ortego et al, 1998), the phenolic compound gossypol and the coumarin umbelliferone (Brattsten, 1987).…”

Section: Discussionsupporting

confidence: 73%

Antifeedant activity and effects of terpenoids on detoxication enzymes of the beet armyworm, Spodoptera exigua (Hübner)

Caballero

López-Olguín

Ruíz

et al. 2008

Span. j. agric. res.

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It has been determined the antifeedant activity of a mixture of limonoids 1,7-di-O-acetylhavanensin and 3,7-di-Oacetylhavanensin (F18), isolated from seeds of Trichilia havanensis Jacq. (Meliaceae), and the neo-clerodane diterpene scutecyprol A, isolated from Scutellaria valdiviana (Clos) Epling (Labiatae), on fifth instar larvae of the beet armyworm, Spodoptera exigua (Hübner) (Lepidoptera: Noctuidae). Choice and no-choice feeding assays, nutritional tests, and post-treatment studies indicated that scutecyprol A acts as an insect feeding deterrent against S. exigua, whereas the antifeedant activity of F18 is likely associated with a toxic mode of action. In addition, it was tested the hypothesis that S. exigua larvae will try to metabolize the compounds that are toxic by the induction of their detoxication systems, whereas no such induction happens for those compounds that are deterrents. The mixture of limonoids F18 significantly increased glutathione S-transferases during the treatment and post-treatment periods, whereas esterases were inhibited during the treatment period. On the contrary, scutecyprol A did not have any significant effect on any of the enzymatic processes. Hence, the metabolic response of S. exigua larvae to the ingestion of the secondary metabolites tested depends on their mode of action.Additional key words: esterases, glutathione S-transferases, limonoids, neo-clerodane diterpenes, nutritional indexes, Scutellaria, Trichilia. ResumenActividad antialimentaria de terpenoides y efectos sobre las enzimas de destoxificación de la gardama, Spodoptera exigua (Hübner) Se ha determinado la actividad antialimentaria de una mezcla de limonoides 1,7-di-O-acetilhavanensina y 3,7-di-O-acetilhavanensina (F18), aislados a partir de semillas de Trichilia havanensis Jacq. (Meliaceae), y del diterpeno neo-clerodano scutecyprol A, procedente de Scutellaria valdiviana (Clos) Epling (Labiatae), frente a larvas de 5º estadío de la gardama, Spodoptera exigua (Hübner) (Lepidoptera: Noctuidae). Los resultados de ensayos de preferencia y no preferencia, de ensayos nutricionales y del estudio de los efectos post-ingestivos indican que el scutecyprol A actúa como disuasorio de la alimentación frente a larvas de S. exigua, mientras que la actividad antialimentaria de F18 está asociada a un modo de acción tóxico. Además, se ha comprobado la hipótesis de que las larvas de S. exigua tratan de metabolizar los compuestos que son tóxicos mediante la inducción de enzimas de destoxificación, mientras que esta inducción no es necesaria para aquellos compuestos que son disuasorios de la alimentación. La mezcla de limonoides F18 incrementó de forma significativa la actividad glutatión S-transferasa durante los periodos de tratamiento y post-tratamiento, mientras que la actividad esterasa se redujo durante el periodo de tratamiento. Por el contrario, el scutecyprol A no tuvo ningún efecto significativo sobre estos procesos enzimáticos. Se puede concluir, pues, que la respuesta metabólica en larvas de S. exigua depende del...

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Section: Discussionsupporting

confidence: 73%

Antifeedant activity and effects of terpenoids on detoxication enzymes of the beet armyworm, Spodoptera exigua (Hübner)

Caballero

López-Olguín

Ruíz

et al. 2008

Span. j. agric. res.

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“…The inhibition of esterase activity with increasing plant extract concentrations seem to be in agreement with the results reported by Jing et al (2005) who observed that esterases showed lower activity after ingestion of Jatropherol-I in B. mori. Similar results were obtained in C. rosaceana after neem oil treatment (Smirle et al, 1996) and in L. decemlineata larvae fed with potato leaves treated with limonoids (Ortego et al, 1999). A wide variety of plant chemicals have been shown to induce P-450 monooxygenase activity in insects (Scott et al, 1998).…”

Section: Discussionsupporting

confidence: 63%

“…Overall, the depletion of energy reserves could be due to a reduction in plant consumption, or to high mobilization of these primary metabolites to compensate the metabolic stress produced by the toxic effects of the plant extracts. A depression of energy reserves has also been reported after ingestion of Jatropherol-I by B. mori (Jing et al, 2005), neem oil by Choristoneura rosaceana (Smirle et al, 1996), P. harmala leaves by T. castaneum , and azadirachtin by some insects such as S. litura (Huang et al, 2004). Moreover, reductions in energy reserves were reported in P. interpunctella after ingestion of harmine (Bouayad et al, 2012), harmaline (Rharrabe et al, 2007), azadirachtin and 20-hydroxyecdysone (Rharrabe et al, 2009).…”

Section: Discussionmentioning

confidence: 88%

“…A common strategy in insects is to produce these enzymes in response to the ingestion of allelochemicals, suggesting that induction plays an important role in the adaptation of insects to plant diets (Terriere, 1984). However, some plant allelochemicals are known to inhibit the activity of detoxification enzymes (Smirle et al, 1996;Jing et al, 2005), increasing the toxicity of co-occurring plant compounds (Berenbaum & Neal, 1985).…”

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confidence: 99%

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Insecticidal effects of Moroccan plant extracts on development, energy reserves and enzymatic activities of Plodia interpunctella

Bouayad

Rharrabe

Ghailani

et al. 2012

Span. j. agric. res.

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The aim of this work was to study the effects of methanol extracts of ten plant species used in traditional medicine in Morocco (Peganum harmala, Ajuga iva, Rosmarinus officinalis, Lavandula stoechas, Lavandula dentata, Cistus ladanifer, Cistus salviaefolius, Cistus monspeliensis, Centaurium erythraea and Launaea arborescens) on Plodia interpunctella Hübner (Lepidoptera: Pyralidae) larvae. Firstly, we studied the effects of the ingestion of these extracts at 500 ppm on post-embryonic development parameters. Most plant extracts provoked a notable decrease of larval weight 8 days after treatment (up to 33% weight loss with C. erythraea) and caused significant alterations on pupation (ranging from 5% to 85%) and adult emergence (below 2.5% with R. officinalis, C. erythraea and A. iva). The plant extracts that showed strongest effects on post-embryonic development were selected to test their effects on the following physiological parameters: larval reserve substances (at 500 ppm); and midgut activities of hydrolytic and detoxification enzymes (at 500, 750 and 1000 ppm). All treatments provoked a significant reduction of protein and carbon hydrate larval contents, the inhibition of proteases and α-amylase activities in a dose depended manner, and the induction of glutathione S-transferase and esterase (using MtB as substrate) activities, whereas the activity of cytochrome P450 monooxygenases and esterases (using 1-NA as substrate) increase or decrease depending on the extract concentration and the plant analyzed.

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“…In the same way, Dane et al (2016) reported that the methanolic extract from A. absinthium showed potent toxicity for Sitophilus oryzae and causing 100% in 24h at a dose of 60 mgcm -2 . Many natural plant compounds used in the control of insect pest are known to exhibit effects in the enzymatic profiles (Smirle et al, 1996;Zhang et al, 2013). The finding of our study showed that, the crude ethanolic extract of A. judaica inhibited AchE activity on treated aphids.…”

Section: Enzymathic Effectssupporting

confidence: 48%

Phytochemical Study and Bioinsecticidal Effect of the Crude Ethonolic Extract of the Algerian Plant Artemisia Judaica L. (Asteraceae) Against the Black Bean Aphid, Aphis Fabae Scop.

Acheuk¹,

Lakhdari²,

Abdellaoui³

et al. 2017

AgricultForest

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SUMMARYPlants are the nature's biochemical factories. They bio-synthesize a diverse array of different natural products, such as alkaloids, terpenes and terpenoids, phenolic compounds, flavonoids and coumarins through their structural mechanisms to reduce insect attacks, both constitutive and inducible, while insects have evolved strategies to overcome these plant defenses.There is a widespread effort to find new pesticides, and currently it is focused on natural compounds such as flavonoids, coumarins, terpenoids, and phenolics from diverse botanical families from arid and semi-arid lands. Algeria by the diversity of its habitats has a very diverse flora. Some of these plants have very interesting insecticidal properties. The aim of this study is to evaluate the insecticidal effect of the plant Artemisia judaica L. (Asteraceae). The crude ethanol extract of the plant A. judaica was tested on the black bean aphid Aphis fabae Scop. Four doses (12.5, 6.25, 3.12 and 1.56 mg mL -1 ) were tested on contact wingless adults. The results have showed that the tested extract has been very powerful to aphids. At the highest dose 12.5 mgmL -1 , the 100% of mortality were recorded 2 hours after treatment, and for the lowest dose (1.56 mgmL -1 ) it was after 96 hours. The LD50 calculated 2 hours after treatment from the regression lines Probit = ƒ (doses) shows that it is 2.75 mgmL -1 . This powerful insecticidal activity of the tested crude extract could be due to the richness of the plant on phenolics compounds known for their bio-insecticide action.

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Influence of Neem Oil on Detoxication Enzyme Activity in the Obliquebanded Leafroller,Choristoneura rosaceana

Cited by 66 publications

References 0 publications

Antifeedant activity and effects of terpenoids on detoxication enzymes of the beet armyworm, Spodoptera exigua (Hübner)

Antifeedant activity and effects of terpenoids on detoxication enzymes of the beet armyworm, Spodoptera exigua (Hübner)

Insecticidal effects of Moroccan plant extracts on development, energy reserves and enzymatic activities of Plodia interpunctella

Phytochemical Study and Bioinsecticidal Effect of the Crude Ethonolic Extract of the Algerian Plant Artemisia Judaica L. (Asteraceae) Against the Black Bean Aphid, Aphis Fabae Scop.

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