[酯酶的三种组合及其与古巴致倦库蚊（1823年，西伊，双翅目：蚊科）对有机磷、氨基甲酸酯和拟除虫菊酯类杀虫剂抗性的关系]

[3 combinations of esterases and their relation with the resistance to organophosphate, carbamate, and pyrethroid insecticides in Culex quinquefasciatus Say, 1823 (Diptera: Culicidae) in Cuba].

作者信息

Bisset J A, Diéguez L, Rodríguez M M, Díaz C, González T, Vázquez R

机构信息

Instituto de Medicina Tropical Pedro Kouri.

出版信息

Rev Cubana Med Trop. 1996;48(1):5-11.

Abstract

The possible relationship between different patterns of esterases and the resistance to various types of insecticides was analyzed by bioassays, biochemical tests, and electrophoresis carried out in a population of Culex quinquefasciatus from Camagüey and in three colonies obtained from it by family selection. The original population was heterogeneous and presented 8 combinations of esterases in polyacrylamide gel. A3A6B6, B1B6 and B1A6B6 were the most frequent of them and characterized each selected colony. Every studied colony, including the parental one, showed different levels of resistance to diverse insecticides. Only the resistance to propoxur showed less variation. In every colony it seems to exist a combination of resistance mechanisms; however, the differences found in tests with DEF synergized insecticides show that the different bands of zymograms may represent esterases contributing in a different way to resistance.

摘要

通过生物测定、生化测试和电泳，对来自卡马圭的致倦库蚊种群及其通过家系选择获得的三个群体进行分析，以研究不同酯酶模式与对各类杀虫剂抗性之间的可能关系。原始种群具有异质性，在聚丙烯酰胺凝胶中呈现出8种酯酶组合。其中A3A6B6、B1B6和B1A6B6最为常见，并分别表征了每个选定的群体。包括亲本群体在内的每个研究群体，对不同杀虫剂均表现出不同程度的抗性。只有对残杀威的抗性变化较小。在每个群体中似乎都存在抗性机制的组合；然而，在使用DEF增效杀虫剂的测试中发现的差异表明，酶谱中的不同条带可能代表以不同方式对抗性起作用的酯酶。

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