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. Author manuscript; available in PMC: 2010 Apr 1.

Published in final edited form as: Mol Microbiol. 2009 Apr 21;72(4):844–858. doi: 10.1111/j.1365-2958.2009.06699.x

Fig 5 — Imported manganese does not scavenge H₂O₂. A. Manganese did not prevent H₂O₂ accumulation by Hpx^- and Hpx^- ΔmntH cells. Cells were grown anaerobically and aerated at time zero. At intervals the medium was assayed for accumulated H₂O₂. LC106 (Hpx^-, squares) and SMV42 (Hpx^- ΔmntH, diamonds). Filled symbols: 50 μM manganese was included in the growth medium. B. Manganese-supplemented cells did not exhibit significant H₂O₂-scavenging activity. H₂O₂ (1 μM) was added at time zero to cultures of log-phase cells. Filled symbols: 50 μM manganese was included in the growth medium. MG1655 (open circles), LC106 (Hpx^-, squares), SMV42 (Hpx^- ΔmntH, diamonds).

Fig 5 — Imported manganese does not scavenge H₂O₂. A. Manganese did not prevent H₂O₂ accumulation by Hpx^- and Hpx^- ΔmntH cells. Cells were grown anaerobically and aerated at time zero. At intervals the medium was assayed for accumulated H₂O₂. LC106 (Hpx^-, squares) and SMV42 (Hpx^- ΔmntH, diamonds). Filled symbols: 50 μM manganese was included in the growth medium. B. Manganese-supplemented cells did not exhibit significant H₂O₂-scavenging activity. H₂O₂ (1 μM) was added at time zero to cultures of log-phase cells. Filled symbols: 50 μM manganese was included in the growth medium. MG1655 (open circles), LC106 (Hpx^-, squares), SMV42 (Hpx^- ΔmntH, diamonds).