Fig 2. Susceptibility of clinical isolates of P. aeruginosa to treatment with doxycycline in combination with various polyamino-isoprenic derivatives.
The percentage of susceptible isolates to doxycycline (2 mg/L) supplemented with one of the compounds (10 μM) was determined for each combination. grey bar, black bar, dark grey bar, and white filled bar, correspond to compounds 1, 2, 3 and 4 respectively. Error bars represent standard deviations of 3 independent experiments.