Table 2.
Effects of D-Arg and DFMO on polyamine contents (n mol/g FW) in the mesocotyls of two maize inbred lines under chilling stress
| Treatments | Put |
|
Spd |
|
Spm |
|
Total polyamine |
||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mo17 | Huang C | Mo17 | Huang C | Mo17 | Huang C | Mo17 | Huang C | ||||
| 0 µM | 1369.3a | 738.4a | 195.4d | 248.6b | 25.0d | 31.4b | 1589.6b | 1018.4a | |||
| 10 µM D-Arg | 1233.6b | 644.5b | 466.6a | 310.1a | 60.5a | 35.4b | 1760.7a | 990.0b | |||
| 100 µM D-Arg | 1055.0 c | 581.5 c | 331.2b | 241.0b | 38.3bc | 35.9b | 1424.5 c | 858.4 c | |||
| 10 µM DFMO | 708.5d | 479.3d | 259.2 c | 296.5a | 33.3 cd | 31.5b | 1001.0d | 745.3d | |||
| 100 µM DFMO | 556.3e | 400.6e | 240.1 c | 218.8 c | 40.7b | 48.2a | 837.2e | 729.6d | |||
*Significant differences among treatments in the same inbred line (P < 0.05). Each value represents the mean of three replications of each treatment. The same letters within a column indicate there was no significant difference at a 95% probability level (P < 0.05).