Fig. 2

Volcano plots of P. putida proteome adaptations during exposure to an oxygen-depleted atmosphere after 10 (left), 30 (middle) and 60 min (right) of N₂-mediated oxygen reduction. Vertical lines indicate doubled or halved protein abundances, as represented by the log₂(fold change). Horizontal lines represent a significance level of 5%, as represented by a -log₁₀(p-value) of 1.301