›› 2002, Vol. 45 ›› Issue (4): 441-446.
• RESEARCH PAPERS • Previous Articles Next Articles
TAN Su-Jin1, TAN Xiao-Hong2, DU Lin-Fang2, HE Jun-Hua3, TANG Zhen-Hua4
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Abstract: The inhibition of the main components of a new kind of permethrin termiticide on carboxylesterase (CarEs) and Ca-ATPase in Reticulitermes chinensis Snyder was investigated. The results showed that at concentration of 1.66×104 mol·L1 octachlorodipropyl ether and OP-emulsifier in the compound could inhibit the specific activity of CarEs, while permethrin could inhibit the specific activity of Ca-ATPase strongly. The IC50 values were 7.1148×105 mol·L1, 7.3373×104 mol·L1 and 5.11×107 mol·L1 respectively. The fact that Ca-ATPase function was more strongly affected than that of Na-K-ATPase, and that permethrin could strongly inhibit the activity of Ca-ATPase on the synaptosome of Reticulitermes chinensis, implies that Ca-ATPase is the primary neuronal target site of pyrethroids in Isoptera.
Key words: Reticulitermes chinensis, CarEs, Ca-ATPase, termiticide compound, inhibition of enzyme activity
TAN Su-Jin1, TAN Xiao-Hong2, DU Lin-Fang2, HE Jun-Hua3, TANG Zhen-Hua4. Inhibition of main components of a new pyrethroid termiticide on CarEs and CaATPase in Reticulitermes chinensis Snyder[J]., 2002, 45(4): 441-446.
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