双链RNA可以预防和治疗生真菌感染
Rebecca M Degnan1, Louise S Shuey2, Julian Radford-Smith3
1School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Queensland, Australia. r.degnan@uq.edu.au.
Communications biology
|December 6, 2023
概括
双链RNA (dsRNA) 喷雾剂可以预防和治愈植物中的,即使在感染后也是如此. 这种新的方法为管理这种破坏性真菌病提供了一个有希望的新策略.
科学领域:
- 植物病理学 植物病理学
- 分子生物学分子生物学
- 生物技术是生物技术.
背景情况:
- 像生这样的真菌病原体对多年生植物和生态系统构成重大威胁.
- 传统的控制方法 (杀菌剂,耐药育种) 对一些病原体来说是不够的.
- 双链RNA (dsRNA) 显示了针对性病原体控制的潜力.
研究的目的:
- 为了评估dsrna喷雾对奥斯托普奇尼亚psidii (美生) 的疗效.
- 为了确定dSRNA是否可以预防和治愈在各种疾病阶段的.
- 调查dsrna对生真菌的作用机制.
主要方法:
- 应用dsrna通过喷雾向重要的真菌基因.
- 与dSRNA治疗相比,在不同的时间点对Austropuccinia psidii进行感染测定.
- 评估疾病覆盖率,植物健康和光合作用能力.
- 双光子显微镜可视化dRNA对真菌结构的影响.
主要成果:
- 当dsRNA喷雾剂在感染前48小时到感染后14天内应用时,显著减少了疾病覆盖率.
- 治愈性dsRNA治疗改善了植物健康和光合作用能力,感染后2-6周.
- dsRNA表现出预防性和治疗性作用,导致严重感染后的恢复.
结论:
- dsRNA喷雾是一种有效的工具,既可以预防,又可以治愈菌感染.
- 这种方法提供了一种新的,潜在的可持续策略,用于管理植物中生疾病.
- 这些发现对控制澳大利亚目前正在发生的美生疫情有直接影响.
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