Benedikt J. M. Häussling, Nathalie Rausch, Emely K. Klüsener, Johannes Stökl
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引用次数: 0
摘要
控制世界性入侵害虫铃木果蝇仍然是一项挑战。利用幼虫和蛹寄生虫是一种很有前景的生物方法。遗憾的是,在实验室实验中,由于苏氏果蝇的免疫力很强,大多数幼虫寄生虫都无法成功寄生苏氏果蝇幼虫。迄今为止,只测试过夏铃虫的夏季表型(夏季形态)的寄生情况。然而,冬季表型(冬季形态)是北半球 D. suzukii 全年的主要形态。因此,本研究使用幼虫寄生虫 Asobara japonica 和蛹寄生虫 Trichopria drosophilae 调查了两种表型在寄生期间的免疫力。该研究首次比较了铃虫冬季表型和夏季表型在所有生命阶段的免疫力。我们的结果表明,两种表型对幼虫、蛹和成虫的免疫力存在差异。然而,这些差异的程度和方向在铃虫的不同生命阶段并不一致。这些发现对综合虫害管理(IPM)具有重要意义。
Does the seasonal phenotype of Drosophila suzukii influence cellular immunity and parasitisation?
Controlling the worldwide invasive pest Drosophila suzukii remains a challenge. One promising biological method for managing this pest is the use of larval and pupal parasitoids. Unfortunately, most of the larval parasitoids fail to successfully parasitise D. suzukii larvae in laboratory experiments due to the high immunity of the pest. So far, only the summer phenotype (summer morph) of D. suzukii has been tested for parasitisation. However, the winter phenotype (winter morph) is the dominant form of D. suzukii throughout the year in the northern hemisphere. Therefore, this study investigates the immunity during parasitisation for both phenotypes using the larval parasitoid Asobara japonica and the pupal parasitoid Trichopria drosophilae. It is the first to compare across all life stages the immunity of the winter phenotype to the summer phenotype of not only D. suzukii but also D. melanogaster. Our results indicate differences in the immunity between the two phenotypes for larvae, pupae, and adults. However, the degree and direction of these differences were inconsistent across the different life stages of D. suzukii. The findings have important implications for the integrated pest management (IPM) of D. suzukii.
期刊介绍:
The Journal of Applied Entomology publishes original articles on current research in applied entomology, including mites and spiders in terrestrial ecosystems.
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