FIG. 3.

Synergistic effect of nerolidol and polymyxin B against E. coli incubated at 37°C in neutral phosphate buffer. Symbols: ○, 1 mM nerolidol; •, 10 μg of polymyxin B ml⁻¹; □, 1 mM nerolidol plus 10 μg of polymyxin B ml⁻¹.