TABLE 1.
Growth rate, chlorophyll content, and oxygen evolution of WT, ΔpilD and ΔpilD* Synechocystis cells.
| Strain | Growth conditiona | Doubling time (h) | Chl content (μg OD750 unit–1) | O2 evolution (nmol O2 OD750 unit–1 min–1) | O2 evolution (μmol O2 mg chl–1 h–1)b |
| WT | PM | 12 ± 0.5 | 3.9 ± 0.3 | 41 ± 1 | 631 |
| WT | PA | 16 ± 0.5 | 4.2 ± 0.2 | 46 ± 5 | 657 |
| ΔpilD | PM | 20 ± 1.0c | 3.5 ± 0.7c | 32 ± 8c | 549c |
| ΔpilD* | PM | 12 ± 0.5 | 3.8 ± 0.4 | 40 ± 4 | 632 |
| ΔpilD* | PA | 16 ± 0.5 | 4.1 ± 0.1 | 46 ± 4 | 673 |
aGrowth under PM, photomixotrophic (plus 5 mM glucose) or PA, photoautotrophic conditions, as described in the section “Materials and Methods.” bCalculated from Chl content of 1 OD750 unit of cells and the oxygen evolution (nmol O2 OD750 unit–1 min–1). cAccuracy of the growth rate, Chl content, and oxygen evolution is limited for this strain as a result of the clumping phenotype.