TABLE 3.
C. aurantiacus aerobic respiration rates in aerated axenic culture aliquots (n = 4) under different illumination conditions
| Expt series | Light conditions | Respiration rate (μmol O2 g protein−1 min−1)a |
|---|---|---|
| 1 | Bulb + NIR LEDs (15)b | 2.48 ± 0.17 |
| Dark | 4.47 ± 0.59 | |
| 2 | VIS LEDs (60)b | 5.44 ± 0.29 |
| Dark | 5.75 ± 0.50 |
a
The respiration rates under dark conditions and with VIS light illumination are not significantly different. However, the respiration rates with NIR light illumination (25-W incandescent light bulb plus two 40-mA NIR LEDs) and dark conditions are significantly different.
b
The values in parentheses are light intensities at 400 to 700 nm expressed in μmol photons m−2 s−1.