A comparison of sensitivity to inhibitor among acetylcholinesterase (AChE) molecular forms of resistant and susceptible strains in Helicoverpa armigera
Gao XiWu; Zhou XuGuo; Zheng BingZong
Entomologia Sinica 8(1): 49-54
2001
DOI: 10.1111/j.1744-7917.2001.tb00434.x
Accession: 003342003
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Summary
The sensitivity of molecular forms of 2.8S, 5.3S, 8.7S, 11.9S and 15.6S acetylcholinesterases (AChEs) from susceptible (S) and resistant (R) strains of cotton bollworm (Helicoverpa armigera) to different insecticides (eserine sulfate, malaoxon, thiodicarb, carbofuran, methamidophos, methomyl, paraoxon, DDVP and monocrotophos) with or without Triton X-100 was investigated. Tabulated data comparing the sensitivity to the above mentioned insecticides among the different molecular forms of AChEs from the heads of adults and larvae of the cotton bollworm is presented.The sensitivity of 2.8S and 8.7S AchE to eserine sulfate was significantly lower in the R strain than in the S strain. The sensitivity of 5.3S AchE to eserine sulfate was different between S and R larvae, but there was no difference between adults.
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