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Decreased virulence of cystic fibrosis Pseudomonas aeruginosa in Dictyostelium discoideum

journal contribution
posted on 2023-05-17, 07:13 authored by Bradbury, RS, Reid, DWEC, Inglis, TJJ, Alan ChampionAlan Champion
The characteristics of clinical and environmental isolates of Pseudomonas aeruginosa from both hospital and community settings were analyzed in a eukaryotic virulence model employing the AX2 and X22 mutants of Dictyostelium discoideum. Thirty-one strains, including two Australian epidemic strains, of P. aeruginosa were analyzed, five from environmental sources, six from clinical sources other than cystic fibrosis (CF) patients and nineteen from CF patients' respiratory secretions. The majority of CF isolates almost uniquely supported the growth of D. discoideum. CF isolates of P. aeruginosa were found to be less virulent than isolates from other sources. Varying degrees of inhibition of the developmental cycle of D. discoideum when growing on CF isolates were also noted. This is the first description of P. aeruginosa isolates from clinical and environmental sources supporting the growth of D. discoideum.

History

Publication title

Microbiology and Immunology

Volume

55

Issue

4

Pagination

224-230

ISSN

0385-5600

Department/School

Tasmanian School of Medicine

Publisher

Center Academic Publ Japan

Place of publication

2-4-16 Yayoi, Bunkyo-Ku, Tokyo, Japan, 113-0032

Rights statement

Copyright © 2011 The Societies and Blackwell Publishing Asia P/L The definitive published version is available online at: http://www.interscience.wiley.com

Repository Status

  • Restricted

Socio-economic Objectives

Clinical health not elsewhere classified

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