Table 1.
Habitats of isolation and genome information for the Shewanella strains used in this study
| Habitat of isolation | Environmental characteristics | Strain | Genome size (Mb) (no. of genes)a | Reference |
|---|---|---|---|---|
| Lake Oneida (USA) fresh sediment | Anaerobic redox conditions, pH 7.5–8.2, 4°C (winter) and 20°C (summer), >100 μM Mn4+ | Shewanella oneidensis MR-1 | 5,131,416 (4,745) | 27 |
| Amazon River Delta (Brazil) sediment | Nonsulfidic, suboxic redox conditions, 26.4–31.5°C, 0.1–1 mM Fe2+, 0.1–0.2 mM Cl− (low salinity), depth of 1 m | Shewanella amazonensis SB2B | 4,306,142 (3,785) | 40 |
| Pacific Ocean (USA) marine sediment | Washington coast, 3.4°C, 10 μM Fe2+, 76 μM NH4, depth of 997 m | Shewanella sp. W3-1-18 | 4,708,380 (4,217) | 26, 38 |
| Black Sea sediments | 8°C, 5 μM O2, 7 μM NO3,b depth of 60 m | Shewanella sp. MR-7 | 4,799,109 (4,186) | 28 |
| Black Sea water | 16°C, 280 μM O2,b depth of 5 m | Shewanella sp. MR-4 | 4,706,287 (4,084) | 28 |
a
The genome size and number of predicted genes were calculated as sums of the values for the chromosome and plasmid when the latter was present.
b
Values were calculated based on previously published data (28).