Prevost G, Eslin P, Doury G, Moreau S J M, Guillot S
Laboratoire de Biologie des Entomophages, Université de Picardie--Jules Verne, 33 rue Saint Leu, 80039 Amiens cedex, France.
J Insect Physiol. 2005 Feb;51(2):171-9. doi: 10.1016/j.jinsphys.2004.10.002.
Ichneumonoidae parasitoids have been well described for their regulatory effects on host physiology which are usually associated with the activity of polydnaviruses (PDVs) or viruslike-particles (VLPs) injected by the female wasps at oviposition. Among them, parasitoids of the braconid families display specific characteristics like the required activity of secretions from the maternal venom glands or of teratocytes from embryological origin. However, none of these features were observed in two braconid species of the Asobara genus parasitizing Drosophila hosts. In the absence of PDVs and VLPs, the two species A. tabida and A. citri seem to have developed unique strategies to avoid immunity defenses and to succeed in their Drosophila larval hosts. The aim of this study is to report on the complex relationships of braconid parasitoids with their hosts and to present some of the insights from studying Drosophila parasitoids.
姬蜂总科寄生蜂对宿主生理的调节作用已有详尽描述,这些作用通常与雌蜂在产卵时注入的多DNA病毒(PDV)或病毒样颗粒(VLP)的活性相关。其中,茧蜂科的寄生蜂表现出特定特征,如需要母本毒腺分泌物或胚胎来源的畸形细胞发挥作用。然而,在寄生果蝇宿主的阿索巴茧蜂属的两个茧蜂物种中未观察到这些特征。在没有PDV和VLP的情况下,塔比阿索巴茧蜂和柑橘阿索巴茧蜂这两个物种似乎已经形成了独特的策略来规避免疫防御并成功寄生于果蝇幼虫宿主。本研究的目的是报告茧蜂科寄生蜂与其宿主之间的复杂关系,并展示一些研究果蝇寄生蜂所获得的见解。