TABLE 2.
Survival characteristics of air-dried UV-irradiated B. subtilis sporesa
| Strain description |
F10 value with treatment
|
|||
|---|---|---|---|---|
| UV-C, 254 nm (J·m−2) | UV-(A+B), 280-400 nm (kJ·m−2) | UV-(A+B), 290-400 nm (kJ·m−2) | UV-A, 320-400 nm (kJ·m−2) | |
| Wild type | 326 ± 33 | 10.7 ± 0.9 | 14.9 ± 0.9 | 544 ± 50 |
| dacB | 295 ± 34 | 9.0 ± 0.7 | 10.2 ± 0.8* | 377 ± 31* |
| sspA | 169 ± 17* | 7.1 ± 0.6* | 7.7 ± 0.6* | 260 ± 22* |
| sspB | 216 ± 20* | 7.9 ± 0.5* | 8.4 ± 0.7* | 320 ± 23* |
| sspE | 309 ± 28 | 10.4 ± 0.8 | 14.7 ± 0.9 | 513 ± 44 |
| sspA sspB | 85 ± 13* | 5.8 ± 0.4* | 6.9 ± 0.5* | 203 ± 16* |
a
Data are averages and standard deviations (n = 4). Asterisks indicate survival values that were significantly different from those for wild-type spores (P ≤ 0.05).