Table 4.
Maximum quantum efficiency of PSII in phototrophic versus photoheterotrophic cells in response to iron nutrition
Fe (μM) | F v/F m | |
---|---|---|
Acetate | CO2 | |
0.1 | 0.54 ± 0.07* | 0.72 ± 0.01 |
0.2 | 0.67 ± 0.01 | 0.70 ± 0.02 |
1 | 0.73 ± 0.02 | 0.72 ± 0.01 |
3 | 0.73 ± 0.01 | 0.72 ± 0.01 |
20 | 0.74 ± 0.01 | 0.72 ± 0.01 |
200 | 0.74 ± 0.01 | 0.72 ± 0.00 |
Standard deviation based on biological triplicates
* Statistically significant difference relative to 20 μM Fe (one-way ANOVA, P < 0.05)