Entomologia Sinica (2001) 8, 55-62

Feng Tang, Yong-De Yue and Ri-Mao Hua (2001)
The role of phosphotase and acetylcholinesterase in resistance to phoxim in Helicoverpa armigera
Entomologia Sinica 8 (1), 55-62
Abstract: The resistance mechanism underlying phoxim resistance was investigated through biochemical assays. The results show that there are marked relations between the phosphatase activity and resistance to phoxim. Furthermore, there is a significant difference in the Ki values of AChE between the two strains and it is inferred that the change in ability of binding to phoxim is a mechanism responsible for resistance to phoxim. The metabolic inhibitors Triphenyl Phosphate (TPP) and O,O-diethyl-O-phenyl-thiophosphate (SV₁) displayed significant synergism of phoxim toxicity to the two strains. It implied that esterase might be involved in resistance. However, there is no marked correlation between resistance and CarE.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Ri-Mao Hua

Research topic(s) for pests/diseases/weeds:
pesticide resistance of pest
molecular biology - genes

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Helicoverpa armigera