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High-risk clones of *Pseudomonas aeruginosa* contaminate the drinking water networks of French cities

Environmental Studies and Forestry

High-risk clones of *Pseudomonas aeruginosa* contaminate the drinking water networks of French cities

A. Horikian, A. Jeanvoine, et al.

This research conducted by Ani Horikian, Audrey Jeanvoine, and others uncovers alarming insights into the contamination of drinking water networks in eight French cities with *Pseudomonas aeruginosa*. The study reveals the presence of high-risk clones and highlights the significance of persister cells in monitoring these networks, pointing to shared genetic elements that suggest a common source of contamination.

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Playback language: English
Abstract
This study investigated the contamination of drinking water networks (DWNs) in eight French cities with *Pseudomonas aeruginosa*, focusing on high-risk clones and persister cells. A culture-based method was used to detect *P. aeruginosa*, including persister cells. Genomic sequencing revealed that five DWNs (62.5%) were contaminated, with four showing high-risk clones (ST308, ST395). The presence of shared genetic elements, particularly related to copper tolerance, suggests a potential common source of contamination, possibly linked to plumbing supplies. This highlights the importance of considering persister cells in DWN monitoring.
Publisher
npj Clean Water
Published On
May 16, 2024
Authors
Ani Horikian, Audrey Jeanvoine, Abdallah Amarache, Morgane Tourret, Jérôme Ory, Hélène Bouletresta, Nathalie Van der Mee Marquet, Nadine Lemaitre, Matthieu Evenillard, Didier Lepelletier, Xavier Bertrand, Benoît Valiot, Didier Hocquet
Tags
drinking water networks
Pseudomonas aeruginosa
high-risk clones
persister cells
contamination
genomic sequencing
plumbing supplies

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