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Environmental Sciences

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Environmental Sciences

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Environmental Microbiology

qPCR for Detecting Waterborne Viruses

Description

Quantitative polymerase chain reaction (qPCR), also called real-time PCR, is a molecular method used to measure microorganisms in environmental samples. It helps researchers estimate how much microbial material is present, including disease-causing pathogens. This makes qPCR useful in environmental microbiology when samples ...

Transcript

定量聚合酶链式反应(qPCR)的出现使得能够对环境样本中任何微生物的数量进行定量测定。

与常规PCR类似,qPCR通过检测目标微生物特有的DNA序列是否存在来鉴定微生物。这种方法能够检测那些在实验室条件下无法培养的微生物,从而使得更广泛范围的环境微生物得以分析。此外,qPCR还可对DNA的数量进行定量评估。但与此同时,PCR方法会检测到无论生物体死活的所有DNA,因此限制了仅针对样品中活跃生长的微生物进行检测的能力。

本视频将回顾使定量PCR(qPCR)区别于常规PCR的化学技术革新,解释qPCR如何用于DNA的定量检测,演示利用qPCR从土壤样本中检测RNA病毒的实验方案,并最后展示qPCR在当今环境微生物学中的应用。

qPCR 的基本原理与常规 ...

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