Side effects of Bacillus thuringiensis var. kurstaki on the hymenopterous parasitic wasp Trichogramma chilonis
Side effects of Bacillus thuringiensis var. kurstaki on the hymenopterous parasitic wasp Trichogramma chilonis
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DOI：
10.1007/s11356-015-5830-7
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发表时间：
2016-01-01
影响因子：
5.8
通讯作者：
Wajnberg, Eric
中科院分区：
文献类型：
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作者：
Amichot, Marcel;Curty, Christine;Wajnberg, Eric
使用常规杀虫剂来控制作物害虫的大多数有害作用现在已经得到很好的鉴定，并且现在是通过使用生物控制剂来替代这些化合物的主要论点。在这方面，细菌苏云金芽孢杆菌变种。kurstaki和赤眼蜂属（膜翅目：赤眼蜂科）寄生蜂种类都对鳞翅目害虫有效，并且实际上可以同时使用。在这项工作中，我们研究了B的潜在副作用。苏云kurstaki对Chilonis赤眼蜂雌虫的影响我们首次证实了B的急性毒性。苏云金杆菌对T. Chilonis。然后，在摄入B.在亚致死剂量下，研究了苏云金芽孢杆菌的生活史特征。如寿命、繁殖成功率和花在寄主卵斑上的时间。T. Chilonis没有被B修饰。对寄主的寿命和在寄主卵斑上停留的时间有显著影响。对所得结果的生理和生态意义进行了讨论。
Most of the detrimental effects of using conventional insecticides to control crop pests are now well identified and are nowadays major arguments for replacing such compounds by the use of biological control agents. In this respect, the bacterium Bacillus thuringiensis var. kurstaki and Trichogramma (Hymenoptera: Trichogrammatidae) parasitic wasp species are both effective against lepidopterous pests and can actually be used concomitantly. In this work, we studied the potential side effects of B. thuringiensis var. kurstaki on Trichogramma chilonis females. We first evidenced an acute toxicity of B. thuringiensis on T. chilonis. Then, after ingestion of B. thuringiensis at sublethal doses, we focused on life history traits of T. chilonis such as longevity, reproductive success and the time spent on host eggs patches. The reproductive success of T. chilonis was not modified by B. thuringiensis while a significant effect was observed on longevity and the time spent on host eggs patches. The physiological and ecological meanings of the results obtained are discussed.