Figure 4

Growth of the ∆npoxA mutant of B. infantis in liquid shake culture at various O₂ concentrations. Circles, 100% N₂ cultures; squares, 5% O₂/95% N₂ cultures; triangles, 10% O₂/90% N₂ cultures; diamonds, 20% O₂/80% N₂ cultures. Data represent the average ± SD of four independent experiments.