TABLE 2.
PLFA profiles of H. axialensis and H. hydrothermalis grown at 30°C under different salinity and hydrostatic pressure conditions
PLFA category and identitya | Total PLFA (%) at indicated pressureb
|
|||||
---|---|---|---|---|---|---|
H. axialensis
|
H. hydrothermalis
|
|||||
4% total salts
|
4% total salts
|
11% total salts
|
||||
0.1 MPa (1) | 45 MPa (2) | 0.1 MPa (3) | 45 MPa (4) | 0.1 MPa (5) | 45 MPa (6) | |
Terminally branched saturates | ||||||
i15:0 | 0.0 | 0.4 | 0.1 | 0.0 | 0.0 | 0.0 |
i17:0 | 0.1 | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 |
a17:0 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.4 |
Monoenoics | ||||||
16:1ω9c | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 |
16:1ω7c | 9.1 | 8.8 | 11.2 | 12.2 | 10.9 | 8.2 |
16:1ω7t | 0.1 | 0.1 | 0.1 | 0.0 | 0.1 | 0.0 |
16:1ω5c | 0.1 | 0.2 | 0.1 | 0.0 | 0.1 | 0.1 |
17:1ω6c | 0.1 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 |
cy17:0 | 0.4 | 0.2 | 0.2 | 0.2 | 0.2 | 0.4 |
18:1ω9c | 0.1 | 0.2 | 1.5 | 1.4 | 0.7 | 0.4 |
18:1ω7c | 62.8 | 75.7 | 65.5 | 73.5 | 63.5 | 76.7 |
18:1ω7t | 0.0 | 0.0 | 0.5 | 0.3 | 0.4 | 0.0 |
18:1ω5c | 0.1 | 0.2 | 0.1 | 0.0 | 0.2 | 0.4 |
cy19:0 | 1.0 | 0.6 | 0.0 | 0.2 | 0.0 | 0.2 |
Normal saturates | ||||||
14:0 | 0.4 | 0.2 | 0.3 | 0.0 | 0.3 | 0.0 |
15:0 | 0.2 | 0.2 | 0.2 | 0.0 | 0.2 | 0.0 |
16:0 | 24.1 | 11.8 | 17.5 | 10.3 | 21.1 | 10.3 |
17:0 | 0.6 | 0.5 | 1.0 | 0.7 | 0.9 | 0.9 |
18:0 | 0.5 | 0.4 | 1.0 | 0.9 | 1.0 | 2.0 |
20:1ω7c | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.2 |
Polyenoic | ||||||
18:2ω6 | 0.0 | 0.0 | 0.1 | 0.0 | 0.1 | 0.0 |
Totals | ||||||
Terminally branched saturates | 0.4 | 0.8 | 0.6 | 0.3 | 0.3 | 0.4 |
Monoenoics | 73.8 | 86.2 | 79.4 | 87.8 | 76.2 | 86.4 |
Normal saturates | 25.8 | 13.1 | 20.0 | 11.9 | 23.4 | 13.2 |
Polyenoic | 0.0 | 0.0 | 0.1 | 0.0 | 0.1 | 0.0 |
The lipid a15:0 was not detected. No branched monoenoic or mid-chain branched lipids were detected.
Corresponding columns in Fig. 4 are noted in parentheses after the pressures.