TABLE 1.
Origins, isolation conditions, and designations of bacterial strains
| Depth of sample (m) | Isolation mediuma | Strain(s)b |
|---|---|---|
| 3,455 | CPSm medium on agar plates, O2 | UM1, UM2a, UM2b, UM3a, UM3b, UM4a, UM4b, UM4c, UM5b, UM6b |
| Fatty acids | U53, U54, U56, U57 | |
| Acetate | U34, U36, U37 | |
| Lactate | U45, U48, U49 | |
| Amino acids | U61, U63, U64, U65 | |
| Thiosulfate, nitrate | U13, U15 | |
| Thiosulfate | U72, U73, U74 | |
| Polysulfide-O2 gradients | U18, U20, U21 | |
| 3,475 (chemocline) | CPSm medium on agar plates, O2 | UM6c, UM7, UM8, UM9, UM11 |
| Fatty acids | U51, U52, U55, U58 | |
| Acetate | U31, U35, U38 | |
| Lactate | U41, U42, U43, U44, U46, U47 | |
| Amino acids | U66 | |
| Thiosulfate, O2 | U4, U9 | |
| Thiosulfate, nitrate | U14, U19 | |
| Thiosulfate | U71 | |
| Polysulfide-O2 gradients | U6, U16, U17, U23 | |
| Fatty acids, nitrate | U1, U2, U3 | |
| 3,500 | Acetate | U32, U33 |
| Amino acids | U67 | |
| Thiosulfate, O2 | U7, U8, U10, U12 |
a
For the exact compositions of media see Materials and Methods. Media were incubated under anoxic conditions unless indicated otherwise.
b
Strains which represent numerically significant phylotypes are shown in boldface type.