Table 1.
Effects of D-Arg and DFMO on polyamine contents (n mol/g FW) in the roots 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 | 639.5a* | 673.3a | 178.7d | 302.9b | 23.6ab | 13.6d | 841.8b | 989.8a | |||
| 10 µM D-Arg | 550.3b | 584.9b | 331.4a | 337.2b | 31.5a | 33.8a | 913.1a | 894.8b | |||
| 100 µM D-Arg | 543.3b | 578.0b | 296.4b | 282.3c | 23.7ab | 25.3b | 863.4b | 885.5b | |||
| 10 µM DFMO | 554.0b | 496.3 c | 227.0 c | 388.8a | 22.1b | 19.1 c | 803.1 c | 904.2b | |||
| 100 µM DFMO | 476.0 c | 285.0d | 228.3 c | 218.0d | 21.2b | 15.4d | 725.5d | 518.5 c | |||
*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).