Condition | Initial Rate of O_{2} Consumption | Net O_{2} Consumption |
---|---|---|
μmol O_{2} mg^{−1} chlorophyll hr^{−1} | μmol mg^{−1} chlorophyll | |
Light | 260 ± 4 | 3.8 ± 0.03 |
Dark | 210 ± 4 | 2.4 ± 0.16 |
Two milliliters of 5 mm Mes and 1 mmCaSO_{4}, pH 6.0, contained 3 × 10^{6} cells. MP (13.2 μm) was added to cell suspensions that were irradiated with actinic light and to suspensions kept in the dark. Mean initial rates of O_{2} consumption after MP addition and mean net O_{2} consumption values are shown. se values are included (n = 3). Wilcoxon rank sign analysis indicates that the probability that both of these parameters are not significantly different from the light to the dark is 0.05.