Table 3.
Response of GSP Bacterial Isolates to Simultaneous Stressors
| |
|
|
GSP isolate |
||||||
|---|---|---|---|---|---|---|---|---|---|
| Salinity (%) | pH | Temperature (°C) | 7 | 18 | 21 | 28 | 44 | 50 | 63 |
| 15 | 5 | 45 | − | − | + | + | − | − | − |
| 15 | 7 | 45 | + | − | + | + | + | + | + |
| 15 | 11 | 45 | + | − | + | + | + | + | + |
| 0.1 | 5 | 45 | + | + | + | + | + | + | + |
| 0.1 | 7 | 45 | + | + | + | + | + | + | + |
| 0.1 | 11 | 45 | + | + | + | + | − | − | + |
| 15 | 5 | 4 | − | − | − | − | − | − | − |
| 15 | 7 | 4 | − | − | + | + | − | − | − |
| 15 | 11 | 4 | − | − | + | + | − | − | − |
| 0.1 | 5 | 4 | − | − | + | + | − | − | − |
| 0.1 | 7 | 4 | + | + | + | + | + | + | + |
| 0.1 | 11 | 4 | − | − | + | + | − | − | − |
Shake-tube cultures were exposed to different combinations of growth temperature and media pH and salinity.
Positive (+) and negative (−) growth by turbidity (increases of at least 0.2 OD units) are indicated. Close phylogenetic relationships: GSP 7, Bacillus sp. AY030333; GSP 18, Bacillus marisflavi; GSP 21, Halomonas salina; GSP 28, Halomonas variabilis; GSP 44, Bacillus baekryungensis; GSP 50, Psychrobacter sp. UT85875; GSP 63, Bacillus licheniformis.