一种可遗传的RNA病毒促进了寄生虫黄蜂蛋的化
Yehuda Izraeli1,2,3, Gal Wodowski1,2, Netta Mozes-Daube2
1Department of Evolutionary and Environmental Biology, University of Haifa, Haifa, Israel.
Annals of the Entomological Society of America
|September 24, 2025
概括
一种RNA病毒,Anagyrus vladimiri Reovirus,通过增加卵化率和克服宿主免疫力,使其寄生虫黄蜂宿主受益. 这种相互作用可能有助于对粉虫的生物控制.
科学领域:
- 昆虫学 昆虫学是一门学科.
- 病毒学 病毒学
- 昆虫-病原体相互作用
背景情况:
- 关于昆虫宿主中的RNA病毒的信息有限.
- 寄生虫黄蜂 (Anagyrus vladimiri) 是虫的一个天然敌人.
- 阿纳吉鲁斯·弗拉迪米里 (Anagyrus vladimiri Reovirus) 是一种最近被描述的RNA病毒,感染的是*A. vladimiri*.
研究的目的:
- 为了研究Anagyrus vladimiri Reovirus在宿主Anagyrus vladimiri*上的传播和影响.
- 为研究病毒与宿主相互作用建立同源黄蜂系.
- 探索这种病毒-黄蜂系统对生物控制的潜力.
主要方法:
- 研究了母体和父体传播的reovirus.
- 通过超寄生虫的方式评估横向病毒传播.
- 已建立的病毒感染 (RV+) 和未感染 (RV-) 同源黄蜂系.
- 长寿,发育时间,性别比率,生育能力和卵率的比较.
- 检查了黄蜂虫对黄蜂蛋的免疫反应 (封装).
主要成果:
- 阿纳吉鲁斯·弗拉迪米里 (Anagyrus vladimiri Reovirus) 是由母亲传染的病毒,其传染率非常高.
- 横向传播发生在23%的超寄生宿主中.
- RV+和RV-黄蜂的寿命,发育,性别比率和生育能力都相似.
- RV + 黄蜂的蛋化率明显更高,特别是在非超寄生宿主中.
- 在RV+蛋周围观察到的封装痕迹较少,这表明宿主免疫力下降.
结论:
- 阿纳吉鲁斯·弗拉迪米里 (Anagyrus vladimiri) 复原病毒可能通过抑制虫的封装免疫反应来受益于 *A. vladimiri*.
- 该病毒增强了宿主体内的黄蜂卵存活率.
- 这种RNA病毒-寄生虫相互作用为改善对虫的生物控制策略提供了潜力.
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