Means ± standard deviation (SD) of histidine revertant colonies, mutagenic index (MI), and inhibition percentage (IP) of mutagenicity for two tester strains of <i>Salmonella typhimurium</i>, TA98 and TA100, after treatment with different doses of sulfonamide chalcone N-{4-[3-(4-nitrophenyl)prop-2-enoyl]phenyl}-benzenesulfonamide (CPN).

<p>¹ Negative control: 20 μL dimethylsulfoxide (DMSO).</p><p>² Positive control: 0.5 μg 4-nitroquinoline 1-oxide (4-NQO)/plate for TA98 and 1.5 μg sodium azide/plate for TA100.</p><p>All values are means ± SD of three independent experiments.</p><p>³ Statistical analysis: one-way ANOVA and the Tukey’s test.</p><p>^{a, b, c, d} Letter in common in the same column do not present significant difference (<i>p</i> > 0.05). Different letters in the same column present significant difference (<i>p</i> < 0.05).</p><p>Means ± standard deviation (SD) of histidine revertant colonies, mutagenic index (MI), and inhibition percentage (IP) of mutagenicity for two tester strains of <i>Salmonella typhimurium</i>, TA98 and TA100, after treatment with different doses of sulfonamide chalcone N-{4-[3-(4-nitrophenyl)prop-2-enoyl]phenyl}-benzenesulfonamide (CPN).