的Endornavirus改变了绿色桃花 (Hemiptera:Aphididae) 的宿主选择和种群动态
Sunil Paudel1, Rodrigo A Valverde2, Jeffrey A Davis1
1Department of Entomology, Louisiana State University Agricultural Center, Baton Rouge, LA, USA.
Journal of economic entomology
|October 26, 2024
概括
钟Endornavirus (BPEV) 有利于胡植物,使它们不那么有吸引力,适合绿色桃花 (Myzus persicae). 这表明了潜在的共生关系,提供了对这种常见害虫的保护.
科学领域:
- 植物病理学 植物病理学
- 病毒学 病毒学
- 昆虫学 昆虫学是一门学科.
背景情况:
- 末病毒 (BPEV) 是一种通过种子传播的RNA病毒,感染Capsicum annuum.
- BPEV感染是无症状的,并且在的化过程中一直存在,这表明潜在的宿主受益.
- 恩多纳病毒可能会对生物和非生物压力因素产生耐受性或耐药性,这表明可能存在共生关系.
研究的目的:
- 调查BPEV对植物的潜在有益影响.
- 为了确定BPEV感染者与无病毒的的宿主偏好和适合性,为绿色桃花,Myzus persicae.
- 分析Myzus persicae在BPEV感染和未感染的胡上的种群动态.
主要方法:
- 选择性生物测试进行,以观察虫的定居偏好.
- 生命表分析被用来评估感染和非感染植物上的虫表现 (寿命,后代,内在增长率).
- 使用了差不多同质的线,它们仅在BPEV感染状态上有所不同.
主要成果:
- 成人Myzus persicae表现出喜欢在BPEV未感染的叶上定居的偏好.
- 在BPEV感染的叶子组织上,虫的表现显著下降,寿命和生殖能力下降.
- 在食BPEV感染植物的虫中观察到较低的内在增长率.
结论:
- 末病毒 (BPEV) 赋予了对绿色桃花 (Myzus persicae) 的耐药性.
- 被BPEV感染的胡植物对Myzus persicae来说不太适合宿主,这表明它们对病毒起着保护作用.
- 这些发现支持了BPEV及其宿主之间有益的,可能是共生关系的假设.
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