[古巴圣地亚哥德国小蠊种群品系对杀虫剂的抗性]

[Resistance to insecticides in Blattella germanica species strains from Santiago de Cuba].

作者信息

Díaz C, Pérez M, Rodríguez M M, Calvo E, Bisset J A, Fresneda M

出版信息

Rev Cubana Med Trop. 2000 Jan-Apr;52(1):24-30.

Abstract

A study was conducted on the level of resistance to seven insecticides, namely, 3 organophosphate compounds (malathion, chlorpyrifos and pirimiphos-methyl), one carbamate (propoxur) and 1 pyrethroid (cypermethrin, deltamethrin and lambdacialotrine) of three field-collected strains of Blattella germanica (Linnaeus, 1767) from Santiago de Cuba. These strains showed high resistance levels to malathion, cypermethrin, deltamethrin and lambdacialotrine and low resistance to pirimiphos-methyl, and also they were susceptible to chlorpyrifos and propoxur. The levels of resistance to tested organophosphate insecticides such as malathion and pirimiphos-methyl and to pyrethroid compounds like cypermethrin, deltamethrin and lambdacialotrine may be related to the increased production of esterases as a mechanism of resistance. The value of frequency of the resistant genes for enzyme acetylcholinesterase was very low, therefore, the modified acetylcholinesterase is not involved in resistance to insecticides tested in the studied strains from Santiago de Cuba.

摘要

对从古巴圣地亚哥采集的三株德国小蠊（Linnaeus，1767）对七种杀虫剂的抗性水平进行了研究。这七种杀虫剂分别为3种有机磷化合物（马拉硫磷、毒死蜱和甲基嘧啶磷）、1种氨基甲酸酯（残杀威）和1种拟除虫菊酯（氯氰菊酯、溴氰菊酯和高效氯氟氰菊酯）。这些品系对马拉硫磷、氯氰菊酯、溴氰菊酯和高效氯氟氰菊酯表现出高抗性水平，对甲基嘧啶磷表现出低抗性，并且它们对毒死蜱和残杀威敏感。对所测试的有机磷杀虫剂如马拉硫磷和甲基嘧啶磷以及拟除虫菊酯类化合物如氯氰菊酯、溴氰菊酯和高效氯氟氰菊酯的抗性水平可能与酯酶产量增加作为一种抗性机制有关。酶乙酰胆碱酯酶抗性基因的频率值非常低，因此，修饰的乙酰胆碱酯酶不参与古巴圣地亚哥所研究品系对所测试杀虫剂的抗性。