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Figure 1
OD750 absorbance of S. ellipsoideus supplemented with 0–8 μg ml−1 zinc for 7 days. Data are means ± SD of three replicates.
Figure 2
Chlorophyll-a content in S. ellipsoideus supplemented with 0–8 μg ml−1 zinc for 7 days. Data are means ± SD of three replicates.
Figure 3
Total superoxide dismutase (SOD) (a), MnSOD (b) activity in S. ellipsoideus treated with 0–8 μg zinc ml−1. Data are means ± SD of three replicates. Mean values in columns with different letters are significantly different at the 5% level according to the least significant difference (LSD) test.
Figure 4
FeSOD (a) and CuZnSOD (b) activity in S. ellipsoideus treated with 0–8 μg zinc ml−1. Data are means ± SD of three replicates. Mean values in columns with different letters are significantly different at the 5% level according to the least significant difference (LSD) test.
Figure 5
Ascorbate peroxidase (APX) (a) and glutathione reductase (GR) (b) activity in S. ellipsoideus treated with 0–8 μg zinc ml−1. Data are means ± SD of three replicates. Mean values in columns with different letters are significantly different at the 5% level according to the least significant difference (LSD) test.