在Laodelphax striatellus中通过Polyubiquitin-C抑制大米条纹病毒的积累
Bo-Xue Li1, Yu-Hua Qi1, Chuan-Xi Zhang1
1State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China.
Insects
|March 27, 2024
概括
小棕色植物 (SBPH) 中的多基因-C (UBC) 基因抑制了大米条纹病毒 (RSV) 的积累. 击败这个基因会增加病毒载量,突出其在昆虫抗病毒防御中的作用.
科学领域:
- 分子生物学分子生物学
- 昆虫病毒学 昆虫病毒学
- 乌比基素系统
背景情况:
- 乌比奎丁系统对于宿主防御病毒感染至关重要.
- 聚比基在昆虫病毒感染中的特定作用仍然在很大程度上是未知的.
- 小棕色植物 (SBPH) 是一个重要的农业害虫,传播大米条纹病毒 (RSV).
研究的目的:
- 为了识别和描述SBPH (Laodelphax striatellus) 中的多比基因-C (UBC) 基因.
- 研究LsUBC基因在不同SBPH组织和发育阶段的表达模式.
- 确定LsUBC在SBPH中调节RSV积累中的作用.
主要方法:
- 对LsUBC基因进行全长cDNA鉴定.
- 定量实时聚合酶链反应 (qRT-PCR) 用于基因表达分析.
- 通过RNA干扰 (RNAi) 来降低LsUBC的mRNA水平.
主要成果:
- 确定了lsUBC基因,并发现它在SBPH唾液腺,中肠和生殖系统中高度表达.
- 在整个发育阶段,LsUBC表达是无处不在的,在成年女性中表达的最高水平.
- RSV 感染显著上调了 LsUBC 表达,而 LsUBC 淘汰导致了 RSV 积累的增加.
结论:
- 在SBPH对抗RSV的抗病毒防御机制中,lsUBC起着至关重要的作用.
- 这项研究表明,LSUBC的作用是抑制昆虫载体中RSV的积累.
- 研究结果提供了关于乌比奎丁系统与昆虫病毒感染之间的分子相互作用的见解.
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