FIGURE 2.

Differential expression of the lsm gene. A, the transcript levels of the lsm gene in cells grown under different conditions were determined by Northern blot analysis. B, the corresponding agarose gel shows that all of the lanes were loaded with the same amount of RNA. The following conditions were applied: aerobic growth in 2.1 m NaCl at 42 °C (lane 1), at 30 °C (lane 2), and at 48 °C (lane 3); anaerobic, nitrate-respirative growth (lane 4); and 1.5 m NaCl (lane 5).