Galactose and lactose transport in Kluyveromyces lactis.
Transport of lactose into Kluyveromyces lactis was accomplished by a highly specific system inducible by lactose and galactose. The biosynthesis of the transport enzyme was strongly repressed by glucose. For non-induced cells, lactose penetrated by passive transport, like galactose in any type of cells. The lactose transport showed aK (m) 1.2 -4 mm, was temperature-dependent (76 kJ/mol) and was blocked by metabolic inhibitors.
Boze
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Chaire de Génétique et Microbiologie, E.N.S.A.-I.N.R.A., 34060, Montpellier Cedex, France.
Moulin
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Galzy
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