Table 1.
Comparing kinetic parameters and biomass composition between original and sorted populations
| Kinetic parameters | µ (day−1) | P x (g l−1 day−1) | PTAG (g l−1 day−1) | BPr (day−1) | BP/cell (RFU cell−1) |
|---|---|---|---|---|---|
| Original | 0.69 | 1.54 | 0.18 | 1.09 | 1.09 |
| S2 | 0.67 | 1.48 | 0.20 | 1.15 | 1.12 |
| S3 | 0.73 | 1.66 | 0.20 | 1.22 | 1.14 |
| S4 | 0.64 | 1.39 | 0.25 | 1.19 | 1.20 |
| S5 | 0.67 | 1.48 | 0.34 | 1.20 | 1.23 |
| Biomass composition | Starch (g g−1) | Carbs (g g−1) | Proteins (g g−1) | PL (g g−1) | TAG (g g−1) |
|---|---|---|---|---|---|
| Original | 0.24 | 0.10 | 0.14 | 0.05 | 0.23 |
| S2 | 0.24 | 0.12 | 0.15 | 0.06 | 0.27 |
| S3 | 0.25 | 0.12 | 0.14 | 0.05 | 0.26 |
| S4 | 0.24 | 0.13 | 0.16 | 0.06 | 0.29 |
| S5 | 0.25 | 0.12 | 0.16 | 0.06 | 0.34 |
The kinetic parameters are: specific growth rate (µ) and biomass productivity (P x), both under growth conditions (between t = 0 and t = 2). TAG productivity (Ptag) and lipid fluorescence accumulation rate (BPr) consider the whole N-starvation period (t = 2 to t = 8), while lipid fluorescence per cell was measured considering the values at the end of the starvation phase (t = 8). All analyzed biomass components are expressed as relative to biomass dry weight (g g−1 DW−1). Standard variation of measurements is not depicted because the technical error was always around 5 %