对dsrna的外源性应用用于防治西红叶卷曲新德里病毒
Fulco Frascati1, Silvia Rotunno1, Gian Paolo Accotto1
1Institute for Sustainable Plant Protection, National Research Council, Strada delle Cacce 73, 10135 Torino, Italy.
Viruses
|March 28, 2024
概括
针对番茄叶曲线新德里病毒 (ToLCNDV) 的dsRNA的外源应用在保护西红植物方面表现有前途. 这种RNA干扰方法提供了针对这种破坏性DNA病毒的非转基因策略.
科学领域:
- 植物病理学 植物病理学
- 生物技术是生物技术.
- 分子病毒学分子病毒学
背景情况:
- 番茄叶卷新德里病毒 (ToLCNDV) 是一种重要的新兴植物病原体,影响全球众多作物.
- 目前的ToLCNDV耐药性策略主要依赖于转基因方法,强调需要非转基因替代品.
- 使用双链RNA (dsRNA) 的RNA干扰 (RNAi) 对RNA病毒有效,但对像Geminiviridae这样的DNA病毒的有效性不太清楚.
研究的目的:
- 评估外源dsrna应用对保护西红植物免受toLCNDV的有效性.
- 评估RNAi作为对抗双胞胎病毒的非转基因策略的潜力.
主要方法:
- 对外应用的仿真dsrna针对ToLCNDVDNA-A的所有编码区域.
- 对黄瓜植物的保护评价,黄瓜植物是受ToLCNDV.影响的关键作物.
- 监测受感染的植物数量,症状的发展和病毒标位.
主要成果:
- 观察到受感染的南瓜植物数量减少.
- 在接受治疗的植物中,观察到ToLCNDV症状出现的延迟.
- 减少病毒标位的趋势表明对DNA病毒的部分有效性.
结论:
- 外源的dsRNA应用显示出作为一种非转基因方法来控制像ToLCNDV.这样的双子病毒的潜力.
- 需要进一步优化,以提高基于RNAi的策略对抗DNA病毒的有效性.
- 这项研究有助于了解RNAi对植物防治双胞胎病毒的局限性和可能性.
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