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Effects of the YX04 supernatant on oxidative stress and the antioxidant defense system in P. globosa. (a) The ROS content, (b) H2O2 content, (c) activity of the antioxidant SOD, and (d) MDA content. All error bars indicate the standard error of three replicates. *, P < 0.05 **, P < 0.01; ***, P < 0.001 compared with the control group.
