Figure 6

Growth of control and menaquinone mutant strains under different culture supplementation conditions. 20 μl of cell culture at 106 cells.ml-1 were spotted on classical TAP media, or supplemented media with either Vitamin K1, Vitamin K2 (MQ7), Vitamin K2 (MQ4), or Naphtoate (DHNA) and then submitted to either high or low light conditions for 7 days. The ‘*’indicate mutants rescued by supplementation.