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. 2017 Jul 10;7:4998. doi: 10.1038/s41598-017-05267-3

Figure 4.

Figure 4

Effects of exogenous melatonin on polyamine biosynthesis enzyme activities under chilling stress. (A) Arginine decarboxylase (ADC), (B) ornithine decarboxylase (ODC), (C) S-adenosylmethionine decarboxylase (SAMDC). Control, treating at 28/18 °C; Control + Melatonin, pre-treating with 200 μM melatonin and treating at 28/18 °C; Chilling, treating at 15/8 °C; Chilling + Melatonin, pre-treating with 200 μM melatonin and treating at 15/8 °C; Date represent means ± SD of third replicate samples.