Fig. 2: Mutagenicity level of the different stressors expressed in terms of the fold change of Salmonella enterica Typhimurium TA100 revertant cell numbers compared with control.
From: Impact of chemicals and physical stressors on horizontal gene transfer via natural transformation
a–e, Stressors tested include solar irradiance (a), CMZ (b), DBAC (c), FA (d) and CHCl3 (e). All experiments were conducted in three independent biological replicates and three technical replicates per experiment as indicated by data points (outliers are not included). All box charts represent the 25th and 75th percentile. The bottom of the box is the first quartile (25th percentile) and the top of the box is the third quartile (75th percentile). The line in the middle of the box is the median (50th percentile). The black squares represent the mean. The whiskers represent the s.d. Significant differences between different treated groups were analysed using ANOVA by the Holm–Bonferroni method for multiple comparisons. Not all significant differences were shown to facilitate clear visuals. *P < 0.05, **P < 0.01, ***P < 0.001. All P values are listed in (Supplementary Table 2).
