2011•Journal of Tropical MedicineOpen access

A comparative study on the activity of acetylcholinesterase in the pesticides resistant strains of Blattella germanica

Shen Pei-lin

Abstract

Objective To study the activity of acetylcholinesterase(AChE) in insecticide resistant German cockroaches.Methods Different strains and gender of German cockroaches were used in this study.Colorimetric method was used to determine the activity of acetylcholinesterase.Results Blattella germanica were studied for their acetylcholinesterase activity.AChE activity in the insecticide resistant and insecticide sensitive strains was 2.863 and 5.609,respectively.AChE activity of the field strain was significantly higher than the susceptible strain.And the ratio of AChE activity between the resistant and the sensitive strain was 1.96.Conclusion The activity of AChE from the field strains was correlated with the pesticides resistance.

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Key concepts: Acetylcholinesterase, Aché, German cockroach, Strain (injury), Cockroach, Toxicology, Pesticide, Insecticide resistance