Figure 5From: The TonB system in Aeromonas hydrophila NJ-35 is essential for MacA2B2 efflux pump-mediated macrolide resistanceAccumulation of tilmicosin in the WT and ΔtonB123 mutant. The intracellular concentration of tilmicosin was analysed by HPLC–MS/MS. Data represent the means ± SEM from three independent experiments. ***P < 0.001.Back to article page