Table 1. Physiological Characteristics of the curT- Mutant.
Strain | Doubling Time (h) | Oxygen Evolution (nmol h−1 OD750−1)a | Chlorophyll Content (µg OD750−1)b | Cell Size (µm)c | Cell Number (mL−1 OD750−1)d | |
---|---|---|---|---|---|---|
Wild type | 8.17 ± 0.17e | 16.00 ± 0.42f | 1933 ± 187 | 2.51 ± 0.14 | 2.64 ± 0.20 | 3.90 ± 0.06 x 107 |
curT- | 12.59 ± 0.20e | 32.26 ± 0.56f | 1074 ± 20 | 1.95 ± 0.29 | 2.74 ± 0.44 | 3.67 ± 0.16 x 107 |
Oxygen evolution is expressed in nmol O2 produced per hour per OD750 unit.
Chlorophyll content is expressed in µg OD750−1.
The diameter of nondividing cells is presented in micrometers.
Cell number was determined per ml per OD750. Data are means ± sd of at least three independent experiments.
Doubling times in the presence (e) or absence (f) of 5 mM glucose measured under continuous illumination at 30 µmol photons m−2 s−1 and CO2-limiting conditions.