Skip to main content
. 2004 Oct;70(10):6220–6229. doi: 10.1128/AEM.70.10.6220-6229.2004

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
a

The lipid a15:0 was not detected. No branched monoenoic or mid-chain branched lipids were detected.

b

Corresponding columns in Fig. 4 are noted in parentheses after the pressures.