Transcriptome comparison of C. glutamicum ATCC 13032 cultivated in CGXII minimal medium supplemented with 21.25 µM CuSO4 (Cu↑) and in standard CGXII medium with 1.25 µM CuSO4 (Cus) using DNA microarrays.

The mRNA ratios shown represent mean values from four independent DNA microarray experiments starting from independent cultures. The wild type was cultivated in CGXII minimal medium with 4% (w/v) glucose with or without additional 20 µM CuSO4 and mRNA was prepared from cells in the exponential growth phase. The table includes those genes which showed an at least threefold changed mRNA level (increased or decreased) in at least two of the four replicates with a P-value of ≤0.05.