Table 5 Effects of increasing concentrations of ornidazole on key biochemical parameters in Allium Cepa root tissues.

MDA

(µM/g FW )

3.97 ± 0.44^d

6.54 ± 0.51^c

9.80 ± 0.46^b

13.6 ± 0.75^a

SOD

(U/mg FW)

69.3 ± 1.71^d

82.4 ± 2.47^c

95.6 ± 2.44^b

121 ± 3.84^a

CAT

(OD_{240 nm} min/g FW)

0.62 ± 0.08^d

1.05 ± 0.16^c

2.03 ± 0.18^b

3.19 ± 0.22^a

Chlorophyll a (mg/g FW)

18.5 ± 0.84^a

15.0 ± 1.21^b

11.6 ± 0.94^c

8.22 ± 0.66^d

Chlorophyll b

(mg/g FW)

9.40 ± 0.57^a

6.99 ± 0.49^b

5.10 ± 0.46^c

2.90 ± 0.53^d