Table 5 Accumulation of de3-01-CG revertants under different selective conditions. The mean values of three experiments as well as the standard errors of the mean are reported; for each experiment, 15–20 dishes were done. The reversion rates are given as the total number of revertant colonies per plated cell.
Selective Condition | Days after plating | |||||
|---|---|---|---|---|---|---|
6 | 8 | 9 | 10 | 12 | 16 | |
SDNA-trp | 0.20 × 10-6 ± 1.00 | 0.26 × 10-6 ± 0.58 | 0.26 × 10-6 ± 0.58 | 0.73 × 10-6 ± 1.30 | 0.73 × 10-6 ± 1.30 | 0.73 × 10-6 ± 1.30 |
SDNA-adea | 2.50 × 10-4 ± 1.00 | 5.00 × 10-4 ± 0.60 | -b | 7.80 × 10-4 ± 0.90 | 1.70 × 10-3 ± 0.50 | 1.00 × 10-2 ± 0.30 |
SDNA- his | 0.06 × 10-6 ± 0.58 | 0.12 × 10-6 ± 0.58 | 0.18 × 10-6 ± 1.17 | 0.18 × 10-6 ± 1.17 | 0.18 × 10-6 ± 1.17 | 0.18 × 10-6 ± 1.17 |