Table 3.
Summarisation of responses of the tested isolates to the EVTs, reporded as survival (+) or non-survival (-).
C. antarcticus CCFEE 515 | C. antarcticus CCFEE 534 | C. minteri CCFEE 5187 | ||
---|---|---|---|---|
EVT-E1 | Vacuum 10-5 Pa/1h | + | + | + |
Vacuum 10-5 Pa/1 wk | + | - | + | |
50 cycles -20/+20 °C/2 wk | + | + | + | |
UV-C (254 nm) 10 Jm-2 | + | + | + | |
UV-C (254 nm) 100 Jm-2 | + | + | + | |
UV-C (254 nm) 1000 Jm-2 | + | + | + | |
UV (200-400 nm) 1.5 kJm-2 | + | + | + | |
UV (200-400 nm) 1.5 × 103 kJm-2 | - | - | + | |
UV (200-400 nm) 1.5 × 105 kJm-2 | - | - | + | |
EVT-E2 | Vacuum/22 d (dark) | + | - | + |
Vacuum + UV (200-400 nm) 1.5 × 105 kJm-2 | - | - | +(*) | |
Mars CO2/21 d (dark) | + | - | + | |
Mars CO2 + UV (200-400 nm) 1.5 × 105 kJm-2 | + | - | + | |
Control | Room temperature, dark, 1 atm air | + | + | + |
Result obtained only by staining techniques.