Table 2. Cellular fatty acid compositions (%) of strain E39T and closely related taxa.
| Fatty acid | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
| Saturated: | |||||
| C12:0 | 0.9 | tr | tr | tr | tr |
| C13:0 | 0.9 | – | – | – | – |
| C14:0 | 4.5 | 3.0 | 3.2 | 11.6 | 1.9 |
| C15:0 | – | – | – | – | – |
| C16:0 | 24.9 | 4.9 | 14.5 | 9.0 | 8.7 |
| C17:0 | 1.2 | tr | 1.7 | – | tr |
| C18:0 | 18.3 | 1.3 | 6.7 | 0.8 | 0.9 |
| C20:0 | 0.8 | tr | 0.6 | tr | tr |
| Unsaturated: | |||||
| C13:1 at 12–13 | 0.6 | tr | 2.2 | 1.5 | 2.2 |
| C18:1 ω9c | 10.3 | 0.9 | 6.7 | 23.2 | 23.1 |
| Hydroxy: | |||||
| C15:0 3-OH | 0.9 | tr | tr | tr | tr |
| C16:0 3-OH | 3.7 | 2.0 | 0.8 | 8.0 | 3.5 |
| C17:0 2-OH | tr | tr | 0.7 | tr | tr |
| iso-C17:0 3-OH | 2.1 | 9.4 | 13.3 | 0.6 | 3.6 |
| Branched: | |||||
| iso-C13:0 | 1.6 | 3.5 | 1.0 | tr | 0.8 |
| iso-C14:0 | – | 8.8 | – | 1.5 | 12.2 |
| iso-C15:0 | 9.0 | 26.6 | 8.4 | 11.0 | 5.6 |
| iso-C16:0 | 0.5 | 2.2 | 2.4 | tr | 1.0 |
| iso-C17:0 | 3.0 | 4.2 | 6.7 | tr | 1.4 |
| iso-C18:0 | – | tr | 1.0 | – | tr |
| iso-C19:0 | – | tr | 1.1 | – | 0.8 |
| anteiso-C13:0 | tr | 0.8 | tr | tr | tr |
| anteiso-C15:0 | 5.4 | 25.2 | 15.5 | 21.1 | 21.7 |
| anteiso-C17:0 | 0.9 | 1.9 | 2.4 | tr | 1.4 |
| Summed feature*: | |||||
| 3 | 0.9 | tr | 1.0 | 3.1 | 3.1 |
| 5 | 2.7 | tr | – | – | – |
| 8 | 3.5 | tr | 2.6 | 3.2 | 3.4 |
*Summed features represent groups of two fatty acids that cannot be separated by GLC with the MIDI system.
Summed feature 3, C16:1 ω7c and/or C16:1 ω6c; summed feature 5, C18:0 ante and/or C18:2 ω6,9c; summed feature 8, C18:1 ω7c and/or C18:1 ω6c.
Taxa: 1, strain E39T; 2, Alloprevotella tannerae ATCC 51259T; 3, Alloprevotella rava 81/4-12T; 4, Paraprevotella clara YIT 11840T; 5, Prevotella melaninogenica ATCC 25845T. All data were obtained from this study. Data are expressed as percentages of total fatty acids. In all strains, fatty acids that account for less than 0.5% are not shown. Major components (> 5.0%) are in bold. tr, trace amount (< 0.5%);–, not detected.