Fluoroquinolone-resistant mutants of Burkholdena cepacia

C. F. Pope, S. H. Gillespie, J. R. Pratten, T. D. McHugh

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

Fluoroquinolone-resistant Burkholderia cepacia mutants were selected on ciprofloxacin. The rate of mutation in gyrA was estimated to be 9.6 × 10-11 mutations per division. Mutations in gyrA conferred 12- to 64-fold increases in MIC, and an additional parC mutation conferred a large increase in MIC (>256-fold). Growth rate, biofilm formation, and survival in water and during drying were not impaired in strains containing single gyrA mutations. Double mutants were impaired only in growth rate (0.85, relative to the susceptible parent).

Original languageEnglish
Pages (from-to)1201-1203
Number of pages3
JournalAntimicrobial Agents and Chemotherapy
Volume52
Issue number3
DOIs
Publication statusPublished - 1 Mar 2008

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