| Identification of waterborne microbial pathogens by matrix-assisted laser-desorption/ionization time-of-flight mass spectrometry and the Biotyper 2.0 databases |
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학술지명 Journal of Pure and Applied Microbiology
저자 이규철,이유진,박종근,이옥재
발표일 2014-10-17
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On the basis of various guidelines for drinking-water quality, five species ofbacteria (Helicobacter pylori, Salmonella typhimurium, Yersinia enterocolitica,Legionella pneumophila, and Campylobacter jejuni) were selected as representativesof waterborne microbial pathogens. Matrix-associated laser-desorption/ionization timeof-flight mass spectrometry (MALDI-TOF MS) analysis was conducted to identify the fivebacteria, and the MALDI-TOF MS results were compared with results obtained through16S rRNA identification. The MALDI-TOF MS analysis yielded score values of 1.60 ± 0.19,2.41 ± 0.09, 2.37 ± 0.16, 2.19 ± 0.15, and 1.85 ± 0.08 for H. pylori, S. typhimurium, Y.enterocolitica, L. pneumophila, and C. jejuni, respectively. In addition, the MALDI-TOFidentification results were well-correlated with those from the 16S rRNA identification.This study suggests that MALDI-TOF-based identification is an inexpensive, rapid,reproducible, and accurate alternative method for the identification of waterbornemicrobial pathogens in aquatic environments. |