Table 1.
Growth and physiological parameters of Porphyridium purpureum in the presence of copper in the medium on the 3rd day.
| Biomarkers | Copper concentrations |
|||
|---|---|---|---|---|
| 0 μg/L (control) | 50 μg/L | 100 μg/L | 150 μg/L | |
| Cell number in μL | 269.06 ± 31.45 | 303.825 ± 50.06 | 262.04 ± 14.28 | 132.525 ± 2.93* |
| Chlorophyll a fluorescence, a.f.u. | 95,926 ± 4170 | 95,400 ± 1805 | 110,449 ± 2416* | 101,094 ± 5601 |
| Phycoerythrin fluorescence, a.f.u. | 60,016 ± 4170 | 60,219 ± 1805 | 62,783 ± 2416 | 69,216 ± 5602 |
| Fluorescence of product of 2′,7′-dichlorofluorescin diacetate, a.f.u. | 127,687 ± 3921 | 125,673 ± 1,017,288 | 108,862 ± 16,313* | 126,957 ± 12,994 |
*
Differences from the control group are significant at p ≤ 0.05.