Multiplex-PCR and PCR-RFLP assays to monitor water quality against pathogenic bacteria.

J Environ Monit

Environmental Biotechnology Department, Genetic Engineering and Biotechnology Research Institute, Mubarak City for Scientific Research and Technology Applications, New Burg El-Arab City 21934, Alexandria, Egypt.

Published: December 2003

AI Article Synopsis

  • Developed two molecular techniques to quickly and specifically detect bacterial pathogens (E. coli, P. aeruginosa, and Salmonella spp.) in water samples.
  • Optimized a multiplex-PCR assay using specific primer pairs for each pathogen, allowing for simultaneous detection.
  • Achieved results indicating that the M-PCR assay significantly outperforms traditional methods, providing accurate results within 5 hours from sampling.

Article Abstract

In this work we developed and optimized two molecular-based approaches to monitor rapidly, sensitively and specifically bacterial pathogens from three different genera, Escherichia coli, Pseudomonas aeruginosa, and Salmonella spp., directly in waters. To achieve this aim, firstly a multiplex-PCR assay (M-PCR) was optimized using a primer pair specific for each pathogen. Secondly, as a molecular confirmatory test after isolation of the pathogens by classical microbiological methods, PCR-RFLP of their amplified 16S rDNA genes was performed. It was observed from the results that the developed M-PCR assay has significant impact on the ability to detect sensitively, rapidly and specifically the three pathogens directly in water within a short time (5 h from sampling to obtain final results), therefore it represents a considerable advancement over other known more time-consuming and less-sensitive methods for identification and characterization of these kinds of pathogens.

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http://dx.doi.org/10.1039/b307476eDOI Listing

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