Fig. 6From: BrrICE1.1 is associated with putrescine synthesis through regulation of the arginine decarboxylase gene in freezing tolerance of turnip (Brassica rapa var. rapa)Effects of exogenous putrescine and its inhibitor on freezing tolerance of KTRG-B49. a Representative plants of KTRG-B49 with and without 1.5 mM putrescine and 0.5 mM DFMA before (Control) and after freezing treatment (Freezing), respectively. b Electrolyte leakage of leaves from control and freezing treated plants. Values are means of 5–8 biological replicates. Bars indicate SD. Different symbols indicate significant differences between treatments (P < 0.05) according to Tukey’s testBack to article page