Figure 2.

Desiccation resistance of Acinetobacter baumannii ATCC 19606^T as affected by growth medium and growth phase. Cultures were grown overnight in LB (Δ) or mineral medium (○) or to mid‐log phase (OD 0.45–0.65) in mineral medium (□), and then washed and adjusted to OD ₆₀₀ 2.0 in H₂O. A 20 μl aliquot of each standardized cell suspension was applied to polycarbonate membrane filters to achieve initial viable cell densities ranging from 4 × 10⁶ to 4.6 × 10⁷ CFU per filter which were then stored under desiccation (31% RH) at 22°C. For each experiment, mean values out of at least four biological replicates are shown. Error bars represent the standard error of the mean (SEM)