不显而易见的病毒感染对蜜蜂飞行有不同的影响
Naomi G Kaku1,2, Mark A Jankauski3, Bridget F Doyle1,2
1Department of Plant Sciences and Plant Pathology, Montana State University, Bozeman, MT, USA.
Science advances
|August 8, 2025
概括
像形翅膀病毒 (DWV) 这样的蜜蜂病毒会损害飞行,而白病毒 (SBV) 会增强飞行. 八胺治疗逆转了DWV.
科学领域:
- 养蜂 养蜂 养蜂 养蜂 养蜂 养蜂 养蜂 养蜂
- 昆虫病理学 昆虫病理学
- 动物生理学 动物生理学
背景情况:
- 蜜蜂殖民地损失与病毒有关,这些病毒通常在成年蜜蜂中缺乏明显的症状.
- 评估这些亚临床感染的影响对于了解蜜蜂健康至关重要.
- 飞行性能是蜜蜂健康和压力的敏感指标.
研究的目的:
- 为了研究特定的蜜蜂病毒,变形翼病毒 (DWV) 和sacbrood病毒 (SBV) 对飞行性能的影响.
- 为了确定与这些病毒的同时感染是否会对飞行产生严重的负面影响.
- 探索八胺信号在病毒引起的飞行障碍中的作用.
主要方法:
- 在感染DWV和/或SBV的蜜蜂中测量飞行性能 (距离和速度).
- 定量病毒负载和热冲击蛋白90 (Hsp90) 的表达.
- 分析了受感染蜜蜂中八胺β-2受体 (Oβ-2R) 的表达.
- 实验性地将DWV感染的蜜蜂用八胺治疗,以评估其对飞行的影响.
主要成果:
- 感染DWV会减少飞行距离和飞行速度,而感染SBV会增加两者.
- 高病毒负载与增加的Hsp90表达相关.
- 被SBV感染的蜜蜂表现出更高的Oβ-2R表达,这表明它们在改变飞行中的作用.
- 八胺治疗成功地减轻了DWV引起的飞行障碍.
结论:
- 在蜜蜂飞行性能上,DWV和SBV具有明显的,相反的影响.
- 八胺信号传递与调解病毒感染的飞行反应有关.
- 了解这些病毒与宿主相互作用对于蜜蜂健康和蜂群生存至关重要.
- 这些发现对蜜蜂在个人,蜂群和生态系统层面的健康有影响.
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