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3194

Earthworm’s Acetylcholinesterase as Biomarker to Monitor the Effects of Pesticides

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Last updated: 01 Jan 2025

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Abstract

The effect of three insecticides; methomyl (carbamate), dimethoate and malathion (organophosphates) and one cupper-containing fungicide (Cupper hydroxide) was evaluated in vivo on acetylcolinesterease (AChE) isolated from earthworm Lumbricus terrestirs to achieve a better understanding of AChE responses to agrochemicals in L. terrestirs. Three values of median lethal concentrations of the four compounds were determined from the acute toxicity (0.1, 0.5 of LC50 and the LC50). The three insecticides at the three levels of LC50 inhibited AChE activity and the inhibition was dose dependent. Methomyl at LC50 level had the highest AChE inhibition (98.9%) after 7 days of exposure to contaminated soil. Cupper hydroxide which contains cupper element showed induction of AChE activity at the three levels of LC50s. The maximal induction was at 0.5 of LC50  (27.7% followed with 0.1  (20.3%) and the value of LC50  (6.8%) compared with control.
Our results further support the use of AChE as an indicator of pesticide contamination, to be included in a battery of biomarkers for monitoring soil toxicity.

DOI

10.21608/asejaiqjsae.2008.3194

Authors

First Name

Abdel Rahaman

Last Name

S.M.

MiddleName

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Affiliation

Central Pesticides Laboratory, Sabahia Station Alexandria, Egypt

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Orcid

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Volume

29

Article Issue

July-September

Related Issue

557

Issue Date

2008-07-01

Receive Date

2008-07-05

Publish Date

2008-09-30

Page Start

145

Page End

151

Print ISSN

1110-0176

Online ISSN

2536-9784

Article File

ASEJAIQJSAE_Volume 29_Issue July-September_Pages 145-151.pdf

PDF . 463.8kB

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https://asejaiqjsae.journals.ekb.eg/article_3194.html

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https://asejaiqjsae.journals.ekb.eg/service?article_code=3194

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Original Article

Type Code

53

Publication Type

Journal

Publication Title

Alexandria Science Exchange Journal

Publication Link

https://asejaiqjsae.journals.ekb.eg/

MainTitle

Earthworm’s Acetylcholinesterase as Biomarker to Monitor the Effects of Pesticides

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Article

Created At

22 Jan 2023