Table 2.
Relative abundance (% of total) of fatty acids and ether lipids of Acididesulfobacillus acetoxydans strain INE and its phylogenetically closest relatives grown on glycerol and sulfate.
| Lipid | Acidophilic/acidotolerant type strains | Neutrophilic type strains | ||||
|---|---|---|---|---|---|---|
| A. acetoxydans strain INE | Ds. acidiphilus | Ds. acididurans | Ds. orientis | D. dehalogenans | ||
| pH 3.9 | pHopt 5.0 | pHopt 5.2 | pHopt 5.5 | pHopt 6.8 | pHopt 7.5 | |
| Fatty acids | ||||||
| iC14 | 2.5 | 1.1 | ||||
| C14:1 | 1.4 | |||||
| C14:0 | 0.9 | 20.4 | 7.5 | 2.0 | 15.8 | |
| iC15:1 | 1.5 | 2.4 | 1.3 | |||
| iC15 | 48.0 | 59.5 | 16.6 | 25.8 | ||
| aiC15 | 6.5 | 2.4 | 1.4 | 1.5 | ||
| C15:0 | 2.4 | |||||
| iC16 | 1.9 | 1.1 | 2.8 | |||
| C16:1 | 1.3 | 1.3 | 2.2 | 6.3 | ||
| C16:1 | 2.6 | 3.9 | 6.3 | 15.9 | ||
| C16:0 | 1.1 | 32.3 | 25.9 | 35.7 | 23.6 | |
| diMeC15 | 1.5 | |||||
| 10MeC16 | 2.6 | 1.3 | ||||
| C17:1 | 3.3 | |||||
| iC17 | 1.1 | 1.3 | 1.1 | 2.9 | ||
| C17:0 | 1.2 | |||||
| 10MeC17 | 2.1 | 2.5 | ||||
| C18:1 | 2.4 | 3.8 | ||||
| C18:1 | 8.3 | 10.3 | ||||
| C18:0 | 1.4 | 1.5 | 1.1 | 3.8 | ||
| Sum | 69.7 | 70.5 | 78.2 | 81.3 | 58 | 80.9 |
| Sum saturated | 68.2 | 68.1 | 74.3 | 71.5 | 38.8 | 43.2 |
| Sum unsaturated | 1.5 | 2.4 | 3.9 | 9.8 | 19.2 | 37.7 |
| β-Hydroxy-fatty acids | ||||||
| C14:0 | 1.6 | |||||
| C16:1 | 1.0 | |||||
| C16:0 | 1.1 | 2.0 | ||||
| C18:1 | 1.2 | |||||
| C18:1 | 1.4 | |||||
| Sum | 0 | 0 | 1.1 | 0 | 7.2 | 0 |
| Dimetyl-acetals | ||||||
| iC15 | 4.9 | 14.7 | 1.4 | |||
| iC16 | 3.2 | 1.9 | ||||
| C16:1 | 1.3 | 1.2 | 3.3 | 1.3 | ||
| C16:0 | 5.4 | 2.1 | 15.7 | 7.5 | 9.4 | 6.9 |
| C17:1 | 3.8 | |||||
| iC17 | 4.1 | 5.1 | 1.5 | 4.3 | ||
| C17:0 | 1.9 | |||||
| 10MeC17 | 1.1 | |||||
| C18:1 | 4.3 | 2.8 | ||||
| C18:1 | 16.4 | 6.7 | ||||
| C18:0 | 0.9 | 1.4 | 1.6 | |||
| Sum | 17.6 | 24.9 | 20.8 | 18.7 | 34.8 | 19.3 |
| 1-Monoglycerol ethers | ||||||
| iC15 | 2.6 | 3.5 | ||||
| iC16 | 1.1 | |||||
| C16:0 | 2.5 | |||||
| 10MeC16 | 3.7 | |||||
| 10MeC17 | 2.3 | 1.5 | ||||
| C18:1 | 1.0 | |||||
| Sum | 13.2 | 5.0 | 0 | 0 | 0 | 0 |
Strains: Acididesulfobacillus acetoxydans strain INE at pH 3.9 and at pH 5.0; Desulfosporosinus acidiphilus; Desulfosporosinus acididurans; Desulfosporosinus orientis, and Desulfitobacterium dehalogenans. Major lipids (>10% of total) are indicated in bold.