Table 5.
Replication index of cultures exposed to Origanum majorana essential oil for 3 h or 21 h.
| Substance | Concentration | 3 h | 21 h | ||
|---|---|---|---|---|---|
| Replication factor (mean ± S.D.) | Replication index (%) | Replication factor (mean ± S.D.) | Replication index (%) | ||
| NCa | — | 0.726 ± 0.021 | 100 | 0.820 ± 0.050 | 100 |
| Essential oil | 0.003125 μL/mL | 0.735 ± 0.019 | 101 | 0.822 ± 0.036 | 100 |
| 0.00625 μL/mL | 0.698 ± 0.021 | 96 | 0.809 ± 0.014 | 99 | |
| 0.0125 μL/mL | 0.731 ± 0.012 | 101 | 0.837 ± 0.027 | 102 | |
| 0.025 μL/mL | 0.722 ± 0.031 | 99 | 0.769 ± 0.024 | 94 | |
| Colchicineb | 0.75 μg/mL | 0.501 ± 0.013 | 69 | — | — |
| Etoposideb | 0.25 μg/mL | — | — | 0.767 ± 0.028 | 94 |
aNegative control: DMSO (0.5%). bPositive control.