Expression of the Genes Encoding the Trk and Kdp Potassium Transport Systems of Mycobacterium tuberculosis during Growth In Vitro

Figure 2

The absolute expression of the trk and kdp genes in the WT and trk-gene knockout cells at mid-log phase suspended in growth medium of varying pH. (a), (b), (c), and (d) represent the absolute expression (μg/mL) of the ceoB, kdpA, kdpD, and sigA genes, respectively. Normal represents bacteria cultured in 7H9 broth without adjustment of the pH. The results are of three experiments in duplicate for each gene. Statistical significance was determined in relation to the absolute quantity of each gene at pH 7. .

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