. 2015 Mar 10;2015:626835. doi: 10.1155/2015/626835

Table 4.

Mutagenicity and antimutagenicity of iCNSL and tCNSL as measured by the number of micronuclei (mean ± SD of 1.000 cells per slide, 5 slides per test group) in A. cepa root meristems at different concentrations and treatments with copper sulphate (1.2 µg·mL⁻¹).

Treatments	Controls/vehicle			iCNSL			tCNSL
	NC	PC	TWEEN	Concentrations			Concentrations
	NC	PC	TWEEN	17.37 µg·mL⁻¹	34.75 µg·mL⁻¹	69.50 µg·mL⁻¹	17.37 µg·mL⁻¹	34.75 µg·mL⁻¹	69.50 µg·mL⁻¹
Without treatment	1.20 ± 1.09	8.40 ± 1.14^a∗∗	11.80 ± 0.83	1.80 ± 0.83	1.80 ± 1.48	4.00 ± 0.70^∗a	1.00 ± 1.22	1.20 ± 0.83	2.20 ± 0.83
Pretreatment	NT	NT	NT	1.40 ± 1.34^b∗∗∗	1.00 ± 0.90^b∗∗∗	4.20 ± 1.30^{a∗;b∗∗∗}	2.20 ± 2.16^b∗∗∗	1.80 ± 0.90^b∗∗∗	2.00 ± 1.41^b∗∗∗
Cotreatment	NT	NT	NT	1.60 ± 0.89^b∗	1.80 ± 1.48^b∗	5.40 ± 1.67^{a∗∗;b∗∗}	1.00 ± 1.00^b∗∗∗	1.00 ± 0.70^b∗∗∗	2.00 ± 1.58^b∗∗∗
Posttreatment	NT	NT	NT	2.2 ± 148^b∗∗∗	1.00 ± 1.22^b∗∗∗	4.20 ± 1.48^{a∗;b∗∗∗}	1.40 ± 1.14^b∗∗∗	1.60 ± 1.51^b∗∗∗	1.80 ± 0.83^b∗∗∗

NC (dechlorinated water). PC (copper sulphate solution). TWEEN (solvent). NT (not tested). 5.000 cells evaluated per bulb, totalling 5.000 per group. ^aSignificant compared with the negative control; ^bsignificant compared with the positive control. ^* P < 0.05, ^** P < 0.01, and ^*** P < 0.001 ANOVA. Tukey's test for multiple comparisons between groups.