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Growth of the auxotrophic strains in combination with transporter deletions in the presence of different amounts of threonine. The growth of the deletion strains GP3031 (thrC bcaP), GP3035 (thrC bcaP ybeC), GP3036 (thrC ybeC ybxG), GP3034 (thrC bcaP ybxG) and GP3037 (thrC bcaP ybeC ybxG) was compared with the thrC deletion mutant (GP3030) in C‐glc medium with 0.04 mM threonine (A) and 4 mM threonine (B). [Color figure can be viewed at wileyonlinelibrary.com]
