when the pgi mutant was maintained for 3-4 days in growth medium , containing 4 mm l-glutamine and 10 % dialyzed calf serum , in which glucose was replaced by mannose , the udp-glucose pool dwindled and mediated control of the hexose uptake system did not ensue , in contrast to results of the same exposure to glucose-containing medium .
C0024742
mannose
C0019494
hexose