Skip to main content
Log in

Rapid selection of antimicrobial-resistant bacteria in complex water systems by chlorine and pipe materials

  • Original Paper
  • Published:
Environmental Chemistry Letters Aims and scope Submit manuscript

Abstract

Antimicrobial resistance is a major health issue induced by the overuse of antibiotics and disinfection reagents, e.g. chlorine. Resistant bacteria thus occur in water supply systems, and they transfer genes to other microbial populations, including pathogens. Treatment and inactivation of resistant bacteria are difficult in complex systems because the behaviour of resistant bacteria in such systems is poorly known, as most previous investigations are commonly performed in pure media. Therefore, we tested here the effect of 0.5 mg/mL chlorine and pipe materials made of polyvinyl chloride (PVC), copper and cement, on microbial populations in biofilms, during 5 days. Bacterial survival was monitored by viable counts, and resistant genes were analysed by quantitative polymerase chain reaction (qPCR). Results show that, in 56% of the cases, resistant bacteria became immediately enriched into biofilms due to chlorine exposure. Higher proportion of resistant bacteria were found in biofilms on PVC and copper pipes. Our findings imply that resistant microbial strains are very rapidly selected and that the pipe material has an influence on microbial selection.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1

Similar content being viewed by others

References

Download references

Acknowledgements

The research is supported by Schlumberger Foundation’s Faculty for the Future in the form of funding for SK’s Ph.D.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Sadia Khan.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Khan, S., Beattie, T.K. & Knapp, C.W. Rapid selection of antimicrobial-resistant bacteria in complex water systems by chlorine and pipe materials. Environ Chem Lett 17, 1367–1373 (2019). https://doi.org/10.1007/s10311-019-00867-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10311-019-00867-z

Keywords

Navigation