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The environmental occurrence of Pseudomonas aeruginosa

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  • Stephanie Crone
  • Martha Vives-Flórez
  • Aaron M Saunders
  • Lasse Kvich
  • Matthew Malone
  • Mette H Nicolaisen
  • Esteban Martínez-García
  • Catalina Rojas-Acosta
  • Maria Catalina Gomez-Puerto
  • Henrik Calum
  • Marvin Whiteley
  • Roberto Kolter
  • Thomas Bjarnsholt
Vis graf over relationer

Pseudomonas aeruginosa is generally described as ubiquitous in natural settings, such as soil and water. However, because anecdotal observations and published reports have questioned whether or not this description is true, we undertook a rigorous study using three methods to investigate the occurrence of P. aeruginosa: we investigated environmental samples, analyzed 16S rRNA data, and undertook a systematic review and meta-analysis of published data. The environmental sample screening identified P. aeruginosa as significantly associated with hydrocarbon and pesticide contaminated environments and feces, as compared to uncontaminated environments in which its prevalence was relatively low. The 16S rRNA data analysis showed that P. aeruginosa sequences were present in all habitats but were most abundant in samples from human and animals. Similarly, the meta-analysis revealed that samples obtained from environments with intense human contact had a higher prevalence of P. aeruginosa compared to those with less human contact. Thus, we found a clear tendency of P. aeruginosa to be present in places closely linked with human activity. Although P. aeruginosa may be ubiquitous in nature, it is usually scarce in pristine environments. Thus, we suggest that P. aeruginosa should be described as a bacterium largely found in locations associated with human activity.

TidsskriftAPMIS - Journal of Pathology, Microbiology and Immunology
Udgave nummer3
Sider (fra-til)220-231
Antal sider12
StatusUdgivet - mar. 2020

Bibliografisk note

© 2019 APMIS. Published by John Wiley & Sons Ltd.

ID: 58382057