FIG. 2.

2dGlc arrests the growth of M. xanthus. A culture of wild-type cells was grown to a density of 5 × 10⁸/ml in CTPM medium at 32°C. At the start of the experiment, equal subcultures were left untreated (open circles) or supplemented to 0.1 M 2dGlc (filled circles), 0.1 M GlcN (open squares), or 0.5 M glycerol (filled squares). The percent relative turbidity (turbidity of each subculture divided by its turbidity at 0 h) is shown; initial values, determined immediately after the addition of supplements, ranged from 90 to 110 KU.