Alterations in acetylcholinesterase and electrical activity in the nervous system of cockroach exposed to the neem derivative, azadirachtin

Shafeek, Abdul; Prasanthi, R.P. Jaya; Reddy, Gadi H.; Chetty, C. S.; Reddy, G. Rajarami

doi:10.1016/j.ecoenv.2003.07.016

Cited by 36 publications

(20 citation statements)

References 8 publications

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“…In this study, A. annua extract inhibited the AChE activity in higher doses which coincided with other reports about effect of botanical insecticides on AChE inhibition. The alteration of AChE was observed in the cockroach, Periplaneta americana L., at 4 ppm of AZA, (Shafeek et al 2004) and the snail, Limnaea acuminata Lamarck, at 40% and 80% concentrations of neem oil (Singh and Singh 2000). It was also observed that 25 g of distilled water extracts of the botanicals Punica granatum L., Thymus vulgaris L., and Artemisia absinthium L., significantly inhibited the AChE activity of nematodes at 100% concentrations (Korayem et al 1993).…”

Section: Discussionmentioning

confidence: 73%

A Study on the Toxicity of a Medicinal Plant, Artemisia Annua L. (Asteracea) Extracts to the Sunn Pest, Eurygaster Integriceps Puton (Hemiptera: Scutelleridae)

Zibaee

Bandani²

2010

Journal of Plant Protection Research

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Abstract:A methanolic extract of Artemisia annua was obtained to evaluate its insecticidal activities against the sunn pest (Eurygaster intefriceps). Also, the responses of general esterase (EST), glutathione S-transferase (GST), alkaline phosphatase (ALP), acid phosphatase (ACP), acethylcholinesterase (AChE) to the plant extract were investigated. Topical application of plant extract on adults showed that the mortality was dose-dependent i.e. with increasing of plant extract concentrations more mortality achieved. Esterase and GST activities were increased in the first 24 h post-treatment. However, the enzymes activities were decreased after 24 h until 72 h. The activities of ALP, ACP and AChE in insect body decreased significantly and inhibition was higher along with increasing concentrations of plant extract. Isozyme electrophoresis profiles indicated that responses of isozymes (EST and GST) to plant extract were decreased after 48 h exposure to extract so that some enzymes bands disappeared. The results indicated that the highest concentration of A. annua extract was the most toxic among the four extracts. The decline of the detoxification ability in insects' tissues might be the main reason for the insecticidal activities.

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Section: Discussionmentioning

confidence: 73%

A Study on the Toxicity of a Medicinal Plant, Artemisia Annua L. (Asteracea) Extracts to the Sunn Pest, Eurygaster Integriceps Puton (Hemiptera: Scutelleridae)

Zibaee

Bandani²

2010

Journal of Plant Protection Research

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“…The search for environmentally safe pesticides has led to the emergence of neem (Azadirachta indica A. Juss) as an excellent alternative to synthetic insecticides (Lowery et al 1993;Schmutterer 1995;Basedow et al 2002). Azadirachtin-the insecticidally active principle of the seeds, leaves and other parts of the neem tree (Liang et al 2003;Senthil Nathan et al 2005a, b) is naturally available, inexpensive and biodegradable source (Shafeek et al 2004). As many as 540 insect species including all the key insect pests of agricultural and horticultural crops were found to be susceptible to azadirachtin and exhibited various behavioral and physiological effects (Schmutterer and Singh 2002).…”

Section: Introductionmentioning

confidence: 98%

Neem oil as a potential seed dresser for managing Homopterous sucking pests of Okra (Abelmoschus esculentus (L.) Moench)

Gandhi

Gunasekaran

2006

J Pest Sci

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Insecticidal seed treatment is an alternative method to spray and granular applications. It can protect the crop right from germination to reproductive stage. Recurrent use of chemical insecticides destabilizes the ecosystem and enhances the development of resistance in pest population. Use of biopesticides like neem oil (NO) is a promising one in this situation. Two field experiments were conducted to test the efficacy of NO as a seed dresser (20 ml kg À1 ) and the effect was compared with systemic chemical insecticides imidacloprid (7 g kg À1 ) and carbosulfan (7 g kg À1 ) and Pseudomonas fluorescens (10 g kg À1 ). Field studies revealed that the neem oil 60EC (C) (NO 60EC (C)) recorded minimum population of sucking pests Leafhopper-Amrasca biguttula biguttula Ishida and Aphids-Aphis gossypii Glover (Homoptera: Cicadellidae and Aphididae), i.e., below the ETL (2 number per leaf) up to 45 days after sowing and provided better yield compared to control. Although the systemic chemical insecticide imidacloprid performed better by recording 11,280 and 11,580 kg ha À1 of marketable fruit yield, NO 60EC (C) also recorded about twofold increase in marketable fruit yield 11,000 and 10,620 kg ha À1 , respectively, in 2001 and 2002 experiments. Results of this study suggest that NO could be used as a potential seed dresser for managing sucking pests in okra.

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“…The same observations were reported when boric acid is ingested by adults of B. germanica (Habes et al 2006;2013). In contrast, exposure to sublethal doses of azadirachtin did not result in any significant alterations in the AChE activity of the nervous system of American cockroach Periplaneta americana (Shafeek et al 2004).…”

Section: Discussionmentioning

confidence: 63%

Topical Toxicity of Spinosad and Its Impact on the Enzymatic Activities and Reproduction in the CockroachBlatta orientalis(Dictyoptera: Blattellidae)

et al. 2015

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Alterations in acetylcholinesterase and electrical activity in the nervous system of cockroach exposed to the neem derivative, azadirachtin

Cited by 36 publications

References 8 publications

A Study on the Toxicity of a Medicinal Plant, Artemisia Annua L. (Asteracea) Extracts to the Sunn Pest, Eurygaster Integriceps Puton (Hemiptera: Scutelleridae)

A Study on the Toxicity of a Medicinal Plant, Artemisia Annua L. (Asteracea) Extracts to the Sunn Pest, Eurygaster Integriceps Puton (Hemiptera: Scutelleridae)

Neem oil as a potential seed dresser for managing Homopterous sucking pests of Okra (Abelmoschus esculentus (L.) Moench)

Topical Toxicity of Spinosad and Its Impact on the Enzymatic Activities and Reproduction in the CockroachBlatta orientalis(Dictyoptera: Blattellidae)

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