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Fig. 3 | BMC Plant Biology

Fig. 3

From: Copper-induced concomitant increases in photosynthesis, respiration, and C, N and S assimilation revealed by transcriptomic analyses in Ulva compressa (Chlorophyta)

Fig. 3

Level of oxygen production under light (a) and oxygen consumption in the dark (b) in the marine alga U. compressa cultivated in control condition (open circles) and with 10 μM copper (black circles) for 5 days. The level of oxygen is expressed in nanomoles per microliter per minute, and time in days. Symbols represent the mean value of three independent experiments ± SD. Different letters indicate significant differences (P < 0.05)

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