Rapid visual detection of Vibrio parahaemolyticus by combining LAMP-CRISPR/Cas12b with heat-labile uracil-DNA glycosylase to eliminate carry-over contamination.

Fang Wu, Chen Lu, Wenhao Hu, Xin Guo, Jiayue Chen, Zhidan Luo
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Abstract

Vibrio parahaemolyticus is a major pathogen frequently found in seafood. Rapid and accurate detection of this pathogen is important for the control of bacterial foodborne diseases and to ensure food safety. In this study, we established a one-pot system that combines uracil-DNA glycosylase (UDG), loop-mediated isothermal amplification (LAMP), and clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 12b (Cas12b) for detecting V. parahaemolyticus in seafood. This detection system can effectively perform identification using a single tube and avoid the risk of carry-over contamination.

LAMP-CRISPR/Cas12b与热不稳定的尿嘧啶- dna糖基化酶联合快速检测副溶血性弧菌,消除携带性污染。
副溶血性弧菌是海产品中常见的主要致病菌。快速准确地检测该病原菌对控制细菌性食源性疾病和确保食品安全具有重要意义。本研究建立了一套结合尿嘧啶- dna糖基化酶(UDG)、环介导等温扩增(LAMP)和聚集规律间隔短回文重复序列(CRISPR)/CRISPR相关蛋白12b (Cas12b)的一锅系统,用于检测海产品中的副溶血性弧菌。该检测系统可以有效地进行单管识别,避免了携带污染的风险。
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