TABLE 2.
Cellular fatty acid composition (%) of strain Nit1536T and its closest related species Nitratireductor aquibiodomus NL21T (DSM 15645, from marine denitrification system) (Labbé et al., 2004), N. kimnyeongensis Ky 101T (DSM 19185, from dried seaweed) (Kang et al., 2009), Nitratireductor sp. HSD-9T (DSM 19383, from beach sand) and Nitratireductor sp. SL014B-25A2 (DSM 22977 non-type strain, from oil-polluted soil).
| Fatty acid type | Fatty acid composition | Nit1536T | NL21T | Ky 101T | HSD-9T | SL014B# |
| Saturated straight chain | C16:0 | 2.40 | 0.74 | 0.67 | 6.56 | 3.03 |
| C17:0 | 0.67 | 0.74 | 2.49 | 14.20 | 4.10 | |
| C18:0 | 8.62 | 2.10 | 3.12 | 15.65 | 5.97 | |
| Saturated branch chain | iso-C17:0 | 2.87 | 2.79 | 1.81 | 7.41 | 11.74 |
| Unsaturated branch chain | C20:1ω 7c | 0.71 | 0.76 | 1.26 | 1.28 | 0.17 |
| C20:2ω 6c9 | 0.75 | 0.30 | 0.17 | 0.28 | 0.86 | |
| Hydroxylated | iso-C15:0 3-OH | 0.97 | 1.56 | 0.62 | 3.04 | - |
| C18:0 3-OH | 0.49 | 0.63 | 0.18 | 0.63 | 0.13 | |
| Cyclopropane acids | C19:0 cyclo ω 8c | 14.31 | 14.49 | 20.97 | 22.97 | 25.81 |
| Methyl | 11 methyl-C18:1ω 7c | 1.13 | 0.21 | 1.24 | 0.31 | 0.88 |
| Other | SF3* | 0.54 | 0.38 | 0.31 | 5.25 | 0.25 |
| SF8* | 66.54 | 73.94 | 63.60 | - | 40.88 |
#SL014B-25A2 is available at DSMZ but it is not a type strain. *Summed features are groups of two or three fatty acids that could not be separated by GLC with the MIDI system; SF3 (summed feature 3) comprises iso-C15:0 2-OH and/or C16:1ω 7c and/or C16:1ω 6c, while summed feature 8 (SF8) comprises C18:1ω 7c and/or C18:1ω 6c. Values are shown as percentages of total fatty acids. The prevalent fatty acid components (>5%) in the different bacterial strains are indicated in bold; –, not detected. Fatty acids accounting for less than 1% in all the strains are not reported. The data reported were performed by DSMZ in this studied.