lncRNA编码的小可以促进病毒感染
Yaoyao Li1, Juan Zhang1, Chunyan Qi1
1State Key Laboratory for Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MARA, Key Laboratory of Green Plant Protection of Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, China.
Molecular plant pathology
|April 17, 2025
概括
一个新发现的小,ORF4,由lncRNA Talnc54748编码,增强了植物病毒感染. 这种对植物激素和MAPK信号通路产生影响,这表明它在植物免疫力中起作用.
科学领域:
- 植物分子生物学 植物分子生物学
- 植物病原体相互作用
- RNA生物学的RNA生物学
背景情况:
- 长非编码RNAs (lncRNAs) 可以编码具有生物功能的小.
- 在植物抗病毒防御中,IncRNA编码的作用在很大程度上是未知的.
- 小麦黄色马赛克病毒 (WYMV) 是一种重要的植物病原体.
研究的目的:
- 研究 lncRNA编码的小在植物抗病毒反应中的功能.
- 为了识别特定的lncRNA及其编码的涉到植物免疫.
- 阐明这些类素影响植物防御的分子机制.
主要方法:
- 对lncRNA Talnc54748及其编码的ORF4.4的识别和表征.
- 转基因Nicotiana benthamiana过度表达ORF4.4的产生
- RNA测序以分析ORF4过度表达系中的基因表达变化.
- 病毒诱导的基因沉默 (VIGS) 研究SAUR21和MKK2.2的功能.
- 评估转基因植物中的病毒和细菌病原体感染水平.
主要成果:
- 在N. benthamiana中ORF4的过度表达增强了WYMV感染.
- RNA-seq揭示了ORF4-过度表达线路中的植物激素和MAPK信号通路中基因的减少表达.
- 抑制SAUR21 (植物激素信号) 或MKK2 (MAPK信号) 增强了WYMV感染.
- 过度表达ORF4也增加了对烟草马赛克病毒 (TMV),番茄马赛克病毒 (ToMV),Phytophthora capsici和Pseudomonas syringae pv.的易感性. 番茄 DC3000. 番茄 DC3000. 番茄 DC3000. 番茄 DC3000. 番茄 DC3000. 番茄 DC3000 番茄 番茄 番茄 番茄 番茄 番茄
结论:
- 编码lncRNA的小ORF4在调节植物免疫力方面发挥着重要作用.
- 通过影响激素和MAPK信号通路,ORF4似乎抑制了植物的防御反应.
- 这项研究为植物抗病毒和抗菌防御中的lncRNA衍生的功能提供了新的见解.
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