Evaluation of the MIB-producing potential based on real-time qPCR in drinking water reservoirs

Green light promotes
MIB synthesis and PE
Odor risks increase
2-Methylisoborneol (MIB)
Taste & odor
Real time qPCR
MIB-Synthesis (*mic*) gene
Drinking water

ER2022: MD. Suruzzaman, Yongjing Wang, Ming Su, et. al. Evaluation of the MIB-producing potential based on real-time qPCR in drinking water reservoirs. Environmental Research 2022;204:112308. 10.1016/j.envres.2021.112308.

作者
单位

Md. Suruzzaman

Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences

University of Chinese Academy of Sciences

曹 腾心

Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences

University of Chinese Academy of Sciences

陆 金平

Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences

University of Chinese Academy of Sciences

王 永京

State Environmental Protection Key Laboratory of Food Chain Pollution Control, Beijing Technology and Business University

Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences

University of Chinese Academy of Sciences

Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences

University of Chinese Academy of Sciences

发布于

2022年03月01日

Doi

重要链接

摘要

蓝藻会释放一种次级代谢产物——2-甲基异莰醇(MIB)。本研究提出了一种基于反转录定量实时PCR(RT-qPCR)的方法,通过检测MIB合成基因(mic)来评估水源中MIB的生成潜力。我们设计了一套MIBQSF/R引物,该引物基于12株纯培养的MIB产藻菌株的mic基因序列以及从NCBI数据库中获取的23个序列(共35个mic基因序列)构建而成。此引物成功识别了所有已知的43株MIB产蓝藻菌株(包括本研究中的12株和NCBI数据库中的31株),这些菌株隶属于不同的属,其覆盖范围比现有的引物组更广。该方法的效率通过以下指标得到了验证:扩增效率(E = 91.23%)、标准曲线的R2值(0.999)、检测限(LOD,5.7 fg μL−1)以及定量限(LOQ,1.86 × 104基因拷贝μL−1)。此外,该方法还通过分析50个来自不同水库的野外样本(R2 = 0.614,p < 0.001)以及单一水库样本(R2 = 0.752,p < 0.001)中mic基因丰度与MIB浓度之间的相关性进行了验证,表明该方法具有作为替代预警工具的潜力,可用于评估水源中MIB问题的风险。

引用

Add to Zotero

@Article{suruzzaman2022evaluation,
    title       = {Evaluation of the {MIB}-producing potential based on real-time qPCR in drinking water reservoirs},
    author      = {Md Suruzzaman and Tengxin Cao and Jinping Lu and Yongjing Wang and Ming Su and Min Yang},
    year        = 2022,
    journal     = {Environmental Research},
    pages       = 112308,
    url         = {https://www.sciencedirect.com/science/article/pii/S0013935121016091},
    doi         = {10.1016/j.envres.2021.112308}
}