Fig. 5From: The effect of cadmium on the growth and antioxidant response for freshwater algae Chlorella vulgaris Contents POD of C. vulgaris cultivated 18 days in cadmium in Cd(II) medium. Different lowercase letter (a–e) indicate significant differences between treatments exposed to increasing metal concentration (p < 0.05). Values in columns followed by the same letter(s) are not significantly different according to Tukey’s test (p < 0.05)Back to article page