Fig. 5From: Metabolic mechanism of astaxanthin biosynthesis in Xanthophyllomyces dendrorhous in response to sodium citrate treatmentIntracellular reactive oxygen species (ROS) generation. The figure represents variation in ROS abundance with time, where * represents p < 0.05 compared to the control. The solid and hollow circles represent the intracellular ROS abundance in the control group and the Na-citrate group, respectivelyBack to article page