干旱压力增强了塑介导的RNA干扰,以有效地管理柳叶甲虫
Peng Li1, Wenlei Song1, Yiqiu Zhang1
1State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Hongshan Laboratory, School of Life Sciences, Hubei University, Wuhan 430062, China.
Pesticide biochemistry and physiology
|September 14, 2024
概括
干旱压力不会影响树植物中塑体产生的双链RNA (dsRNA) 水平. 然而,它通过增加昆虫死亡率来增强害虫控制,这可能是由于植物的防御反应.
科学领域:
- 植物生物技术 植物生物技术
- 昆虫学 昆虫学是一门学科.
- 分子生物学分子生物学
背景情况:
- 塑介导RNA干扰 (RNAi) 通过表达双链RNAs (dsRNAs) 向关键的害虫基因,提供有效的害虫控制.
- 植物经常面临着生物和非生物压力的结合,但非生物压力对塑基衍生dRNA积累和有效性的影响尚不清楚.
研究的目的:
- 为了研究干旱压力对dSRNA积累在转细胞质树植物的影响.
- 评估干旱压力对塑介导RNAi对柳叶甲虫 (Plagiodera versicolora) 的疗效的影响.
主要方法:
- 产生表达dRNA的转质细胞植物,准柳叶甲虫.
- 在受控条件下对这些植物施加干旱压力.
- 量化dsRNA水平,评估昆虫死亡率和植物防御化合物水平.
主要成果:
- 干旱压力并没有显著改变跨细胞植物中的dSRNA含量.
- 暴露在干旱压力下的植物中的柳叶甲虫幼虫的死亡率更高.
- 缺水与植物中雅斯蒙酸和氨酸蛋白酶抑制剂水平的增加相关.
结论:
- 在干旱压力下,来自塑体的dSRNA积累是强大的.
- 干旱压力可以通过植物防御机制间接提高基于RNAi的害虫控制效率.
- 了解这些相互作用对于在具有挑战性的环境条件下优化害虫管理策略至关重要.
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