Adaptive larval thermotolerance and induced cross-tolerance to propoxur insecticide in mosquitoes Anopheles stephensi and Aedes aegypti
Adaptive larval thermotolerance and induced cross-tolerance to propoxur insecticide in mosquitoes Anopheles stephensi and Aedes aegypti
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DOI：
10.1111/j.1365-2915.1996.tb00743.x
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发表时间：
1996-07-01
影响因子：
1.9
通讯作者：
Deobagkar, DN
中科院分区：
文献类型：
--
作者：
Patil, NS;Lole, KS;Deobagkar, DN
斯氏按蚊和埃及伊蚊的四龄幼虫通常在43摄氏度下90分钟内死亡，预暴露于高但亚致死的温度下可产生适应性耐热性，这取决于预暴露的温度和持续时间。通过将幼虫预先暴露于亚致死温度，也诱导了对残杀威（一种氨基甲酸酯类杀虫剂）的适应性交叉耐受性。发现预先暴露于亚致死浓度的残杀威可在较低程度上赋予交叉耐热性。这些结果表明，不相关应激因素诱导的休克蛋白（如热休克蛋白）在其他应激条件下的适应性交叉保护（应激反应）的发展中起重要作用。
Fourth-instar larvae of mosquitoes Anopheles stephensi and Aedes aegypti normally died within 90 min at 43 degrees C. Pre-exposure to high but sublethal temperatures conferred adaptive thermotolerance, dependent on the temperature and the duration of pre-exposure. Adaptive cross-tolerance to propoxur (a carbamate insecticide) was also induced in larvae by pre-exposing them to sublethal temperatures. Pre-exposure to sublethal concentrations of propoxur was found to confer cross-thermotolerance to a lower extent. These results suggest that the shock proteins (e.g. heat shock proteins) induced by unrelated stress factors play an important role in the development of adaptive cross-protection (stress response) to other stress conditions.