快速色度检测Citrus tristeza病毒,结合便携式样本制备和反转录循环介导的异热放大
Chia-Wei Liu1, Sohrab Bodaghi2, Manjunath L Keremane3
1Department of Mechanical Engineering, University of California, Riverside, CA, 92521, USA.
SLAS technology
|February 1, 2026
概括
本研究提出了一种快速,便携式的方法,用于检测Citrus tristeza病毒 (CTV),使用循环介导同热放大 (RT-LAMP) 和微同质化器. 开发的试验使得在类植物中快速,无实验室诊断CTV成为可能.
科学领域:
- 植物病理学 植物病理学
- 分子诊断学 分子诊断
- 生物技术是生物技术.
背景情况:
- 悲伤病毒 (CTV) 对全球果产量构成重大威胁.
- 准确和快速检测CTV对于疾病管理和预防传播至关重要.
- 现有的诊断方法往往需要专门的实验室设备和训练有素的人员,限制了现场应用.
研究的目的:
- 开发一种便携式,快速且经济高效的Citrus tristeza病毒 (CTV) 诊断试验.
- 将样品制备与色度检测使用循环介导同热放大 (RT-LAMP) 进行整合.
- 为了实现无冷链的现场部署,以便在现场进行CTV诊断.
主要方法:
- 使用OmniLyse微同质化器和纤维素纸盘进行快速核酸提取 (<15分钟).
- 优化了原料和二甲基硫氧化物 (DMSO) 度,以实现高效和特定的RT-LAMP反应.
- 开发并优化了冷化RT-LAMP试剂混合物,用于无冷链的现场使用.
- 与CTV阳性和非病原体分离物组对比的验证的CTV原料.
主要成果:
- 通过便携式系统,成功地从树叶中提取和分离了总核酸.
- 在温室环境中使用优化的冷化RT-LAMP试验,在35分钟内取得了CTV的阳性检测.
- 证明了CTV原料的高特异性,对抗各种各样的分离物.
- 通过优化补水解决方案,证实了无冷链部署的可行性.
结论:
- 开发的便携式系统为实验室以外的CTV检测提供了快速有效的方法.
- 这项技术有可能显著改善类作物的疾病监测和管理策略.
- 该方法可适应检测其他植物病原体,扩大其在农业诊断中的适用性.
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