FIG. 3.
(A) Effect of starving glucose-grown cells in mineral medium without a carbon source on the formation of the high-affinity transport system for glucose. Symbols: ● and ○, [U-14C]glucose; ▴, [U-14C]xylose. (B) Appearance of the high-affinity transport systems for glucose and xylose: Vmax values for [U-14C]glucose (● and ○) and [U-14C]xylose (▴ and ▵) after glucose-grown cells were transferred to medium containing 2% xylose. Open symbols, cell suspensions incubated in the presence of cycloheximide; solid symbols, cell suspensions incubated in the absence of cycloheximide. d.wt., dry weight.