Figure 7. Relative expressions of crtI and crtZ determined by RT-qPCR.

The values indicate changes relative to the levels of mRNA transcripts in Sphingobium yanoikuyae XLDN2-5 cultured in MSM with glucose and NH₄Cl as the carbon and nitrogen sources, respectively. (A) Relative expression of crtI in bacterial cells, which were cultivated with glucose and NH₄Cl, or CA, or CA and BT, or CA and DBT. (B) Relative expression of crtI in cells which were cultured in CA with the addition of 0.1 mM, 0.2 mM, 0.3 mM and 0.4 mM DBT. (C) Relative expression of crtZ in cells, which were cultivated with glucose and NH₄Cl, or CA, or CA and BT, or CA and DBT. (D) Relative expression of crtZ in cells which were cultured by CA with the addition of 0.1 mM, 0.2 mM, 0.3 mM and 0.4 mM DBT. Values represent the means of four independent experiments; the error bars represent standard deviations (*, p<0.01).