Table II.
Relative amounts of radiolabeled polyamines collected up to 24 h in transgenic (N14) and nontransgenic (NT) carrot cells when [1,4-14C]putrescine was used as a precursor
| Time | Putrescine
|
Spermidine
|
Spermine
|
|||
|---|---|---|---|---|---|---|
| NT | N14 | NT | N14 | NT | N14 | |
| h | % | |||||
| 4 | 71 | 77 | 25 | 19 | 4 | 4 |
| 8 | 53 | 61 | 40 | 34 | 8 | 5 |
| 24 | 28 | 29 | 61 | 60 | 11 | 11 |