叶的唾液维特洛金因介导病毒传播到植物花
Yanfei Wang1, Chengcong Lu1, Shude Guo1
1Vector-borne Virus Research Center, State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China.
Nature communications
|January 3, 2024
概括
植物病毒利用昆虫的唾液蛋白质,如原蛋白 (Vg),包装在外体内. 这增强了昆虫的养,并促进了水植物中有效的病毒传播.
科学领域:
- 植物病理学 植物病理学
- 昆虫与植物的相互作用
- 分子生物学分子生物学
背景情况:
- 穿孔吸昆虫的唾液效应物抑制植物防御,有助于食,但它们在病毒传播中的作用尚不清楚.
- 叶通过病毒包装外体从唾液腺转移到植物体中传递大米reovirus.
研究的目的:
- 为了研究唾液维素 (Vg) 促进叶传播植物病毒的机制.
- 阐明昆虫外体和唾液效应体在植物病毒传播周期中的作用.
主要方法:
- 研究了Nephotettix cincticeps vitellogenin (NcVg) 与NcRab5对外体释放的关联.
- 在病毒感染的唾液腺体中分析了NcVg上调和外体包装.
- 检查了NcVg与大米谷氨酸S转移酶F12的相互作用及其对过氧化 (H2O2) 爆发的影响.
主要成果:
- 完整的NcVg与NcRab5关联,用于唾液腺释放;病毒感染上调NcVg,由病毒诱导的NcRab5介导,用于外体包装.
- 调的NcVg通过外体进入米细胞体,通过与谷氨酸S转移酶F12相互作用,抑制米H2O2爆发.
- 这种抑制促进了叶的养,并增强了病毒传播,病毒上调的ncVg发挥了双重作用.
结论:
- 病毒劫持昆虫外体,以提供像NcVg这样的效应蛋白,抑制植物防御并促进养.
- 这种机制通过利用昆虫自身的外生体通路来提高病毒传播效率.
- 这项研究揭示了一种新的策略,病毒操纵昆虫唾液成分,以成功传播.
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