Zinc Affects Differently Growth, Photosynthesis, Antioxidant Enzyme Activities and Phytochelatin Synthase Expression of Four Marine Diatoms

Figure 6

Antioxidant enzymes activities (superoxide dismutase, SOD; catalase, CAT and ascorbate peroxidase, APX) in Amphora coffeaeformis, Amphora acutiuscula, Entomoneis paludosa, and Nitzschia palea grown in ASW (control) or in the presence of 20 μM Zn added to ASW. Significant differences are indicated by an asterisk (𝑃≤0.05). Mean values ± SE (𝑛=3–5).

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