Fig. 3From: Physiological and transcriptomic analyses reveal the roles of secondary metabolism in the adaptive responses of Stylosanthes to manganese toxicityDetermination of enzyme activities. a POD activity. b APX activity. c PPO activity. d PAL activity. Thirty-day-old stylo plants were treated with 5 to 800 μM MnSO4 for 10 d. Values are the mean of three replicates with standard error bars. Different letters represent significant differences at P < 0.05Back to article page