TABLE 3.
Fatty acid compositions of the four novel strains and the reference strain Geobacter bemidjiensis DSM 16622T.
| 1 | 2 | 3 | 4 | 5 | |
| iso-C13:0 | 2.9 | ND | 8.5 | 2.8 | ND |
| C13:0 | 0.2 | 0.5 | 0.5 | 0.1 | ND |
| iso-C14:0 | 1.6 | 1.5 | 1.2 | 1.2 | 0.6 |
| C14:0 | 5.3 | 5.6 | 6.4 | 5.1 | 1.7 |
| C14:0 3-OH | 1.5 | 1.0 | 2.1 | 2.3 | 1.0 |
| iso-C15:0 | 19.6 | 43.5 | 22.3 | 37.7 | 29.7 |
| a-C15:0 | 0.7 | 0.5 | – | 0.4 | 0.1 |
| Unidentified (12.1) | 1.6 | – | 0.3 | 1.5 | 0.4 |
| C15:0 | 2.6 | 12.8 | 9.1 | 1.3 | 2.3 |
| C15:1 ω5c | 1.9 | 6.5 | 0.1 | 1.3 | 1.3 |
| C15:0 3-OH | 20.6 | 9.1 | 10.8 | 19.8 | 11.5 |
| Unidentified (13) | ND | ND | 3.0 | ND | ND |
| iso-C16:0 | 1.5 | 1.5 | 0.9 | 0.7 | 2.0 |
| C16:1 ω9c | 2.2 | 2.6 | 1.3 | 2.1 | 1.6 |
| C16:0 | 7.6 | 8.2 | 9.4 | 4.5 | 15.0 |
| C16:1 ω7c | 7.1 | 0.8 | 5.5 | 6.3 | 8.7 |
| C16:0 10-methyl | 5.0 | 0.3 | ND | ND | 6.4 |
| C16:0 3-OH | 1.3 | ND | 5.1 | ND | ND |
| C16:1 ω5c | 1.6 | 0.8 | 0.8 | 1.2 | 1.4 |
| iso-C17:0 | 1.1 | 0.6 | 0.9 | 0.4 | 3.9 |
| Unidentified (15.4) | 1.4 | ND | 0.3 | 0.9 | 0.7 |
| a-C17:0 | 1.0 | – | 0.3 | 0.6 | 0.3 |
| C17:0 | 0.2 | 0.5 | 0.6 | – | 0.6 |
| C17:0 3-OH | 6.6 | 0.4 | 7.3 | 6.8 | 4.9 |
| C17:1 ω7c | 1.1 | 2.8 | 2.0 | 0.6 | 1.3 |
| C18:0 3-OH | 2.5 | – | 0.8 | 1.3 | 2.8 |
| C18:1 ω7c | – | – | – | 0.2 | 0.6 |
(1) Geomonas oryzae S43T; (2) Geomonas edaphica Red53T; (3) Geomonas ferrireducens S62T; (4) Geomonas terrae Red111T; (5) Geobacter bemidjiensis DSM 16622T. All data in this table come from this study, only those accounting for 0.5% or more in one of the strains are given. The dominant fatty acids are in bold. –, trace quantities (<0.1%). ND, not detected. Unidentified fatty acid with a retention time of 12.1, 13, and 15.4 min, respectively.