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Osmotically controlled uptake of glycine betaine by B. pasteurii. Glycine betaine transport in B. pasteurii (DSM 33T) was measured in cultures grown in SMM (2% urea) without NaCl (•) or with 0.4 M NaCl (▴; ▪). Glycine betaine uptake was measured at a final substrate concentration of 10 μM. In one of the cultures (▪) glycine betaine uptake was determined in the presence of 1 mM ectoine.
