Figure 1.

Time-dependent a-f: Release (respectively consumption) of exemplary VOCs fromS. aureusandP. aeruginosa. Determined median concentrations [ppb_v] with 25^th and 75^th percentiles [ppb_v] are given as black boxes with whiskers indicating 5^th and 95^th percentiles and analogous gray box with gray line without markers indicates medium control. Gray lines with crosses denotes proliferation rate [CFUs*ml^-1]. P-values <0,05 calculated by means of Kruskal-Wallis test indicate significant differences of controls compared to bacteria cultures.