Response of Aedes aegypti (Diptera : Culicidae) larvae to three xenobiotic exposures: Larval tolerance and detoxifying enzyme activities

Boyer, S., David, Jean-Philippe, Rey, D., Lemperiere, G. and Ravanel, P. (2006) 'Response of Aedes aegypti (Diptera : Culicidae) larvae to three xenobiotic exposures: Larval tolerance and detoxifying enzyme activities'. Environmental Toxicology and Chemistry, Vol 25, Issue 2, pp. 470-476.

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Abstract

The ability of mosquito larvae to tolerate toxic compounds (temephos, Bacillus thuringiensis var. israelensis, toxic vegetable leaf litter) was examined on a laboratory larval strain of Aedes aegypti L. Bioassays and detoxifying enzyme activity measurements were performed to compare tolerance/resistance capacities. The possibility of a functional plasticity of detoxifying equipment was investigated through experimental determination of the inductive effect of each xenobiotic within a given generation. In the same way, the selective effect of a toxic leaf litter was also investigated along successive generations. Results revealed that differential cytochrome P450 monooxygenase, esterase, and glutathione S-transferase activity levels correlated with the bioassay results. Both induction and selection increased larval tolerance to the xenobiotics used and increased the levels of larval detoxifying enzyme activities.

Item Type:	Article
Uncontrolled Keywords:	mosquito larval tolerance functional plasticity bacillus thuringiensis var. israelensis temephos toxic leaf litter glutathione s-transferases insecticide resistance leaf-litter drosophila-melanogaster cytochromes p450 mosquito toxicity identification induction allelochemicals
Subjects:	QX Parasitology > Insects. Other Parasites > QX 505 Diptera QX Parasitology > Insects. Other Parasites > QX 510 Mosquitoes QX Parasitology > Insects. Other Parasites > QX 525 Aedes QX Parasitology > Insects. Other Parasites > QX 650 Insect vectors
Faculty: Department:	Groups (2002 - 2012) > Vector Group
Digital Object Identifer (DOI):	https://doi.org/10.1897/05-267R2.1
Depositing User:	Sarah Lewis-Newton
Date Deposited:	14 Feb 2011 11:12
Last Modified:	06 Feb 2018 13:01
URI:	https://archive.lstmed.ac.uk/id/eprint/1454

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