FIG. 2.

Lactococcal strains used in this study and their respective growth profiles on galactose. (A) Schematic overview of the gal operon and the genetic makeup of the galP and galPMK deletions in strain NZ9000. Hooked arrow, putative promoter; lollipop, putative terminator structure; white empty areas, deleted sequence. (B) Growth of L. lactis NZ9000 and derivatives in CDM supplemented with 55 mM galactose at 30°C in rubber-stoppered bottles without pH control (initial pH 6.5). The growth rate (μ) for each strain is also shown.