FIG. 5.
Decay of nonstimulated and glucose-stimulated maltose transport during storage at 0°C of S150-2B/MALx1 yeast harvested from YP-2% glucose medium during growth on glucose (at an OD600 of 3.5 to 5). Yeasts were harvested and assayed after about 2.5 h (Fresh) and after storage for 24 h (1 Day) or 48 to 52 h (2 Day). Transport activities were normalized by setting the nonstimulated activity of each sample of fresh yeast to 100. Results are averages ± standard deviations for three independent suspensions of fresh yeast and 2-day old yeast and two independent suspensions of 1-day old yeast.