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TEM images of bacteria in meltwater from basal ice samples. Scale bars = 0.5 μm. (A) Coccus associated with sediment from uncultured basal ice immediately after thawing. (B and C) Long thin rod (B) and actively dividing cocci (C) from an aerobic stationary culture incubated at 0.3°C without R2A medium. (D) Short, fat rods with inclusions, associated with sediment from an aerobic culture incubated at 4°C without R2A medium.
