Figure 7. virB positively regulates vjbR.

A) Transcription of vjbR and virB8 during the early logarithmic (EL), mid-logarithmic (ML), late logarithmic (LL), and stationary phases (SP) demonstrate that vjbR and virB8 are greatly transcribed in EL and ML. B) Transcription of vjbR in BM, BMΔvirB, and BM-IVGT at EL, ML, LL, and SP show that vjbR is down-regulated at EL in BMΔvirB. C) BMΔvirB demonstrated higher growth rate than BM and BM-IVGT. D) virB and vjbR positively regulate each other and form a positive regulation circuit.