Antioxidative role of nitric oxide on copper toxicity to a chlorophycean alga, Chlorella.


The response of Chlorella vulgaris to copper exposure was investigated under laboratory batch culture conditions. Increased toxicity of Cu with respect to photosynthetic carbon fixation, O(2) evolution, chlorophyll fluorescence, and oxidative burst was observed for N-NH(4)(+)-grown cultures. The addition of sodium nitroprusside, a nitric oxide (NO) donor… (More)


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