Table 2.
15N isotopic analysis results for 15N enriched and non-enriched plants after 3 weeks growth
| Treatment | Sample wt (mg) | Total % nitrogen | δ15N vs (‰) | Atoms % 15N |
|---|---|---|---|---|
| Agarose media (no15N controls) | 1.268 | 0 | N/Aa | N/Aa |
| 1.750 | 0 | |||
| 1.231 | 0 | |||
| Seeds (no 15N controls) | 1.303 | 2.10 | 0.70 | 0.366729 |
| 1.082 | 2.00 | 0.64 | 0.366705 | |
| 1.325 | 2.11 | 0.79 | 0.366761 | |
| Shoots (no 15N Control) | 1.102 | 3.82 | 2.02 | 0.367209 |
| Run 1 sterilized (20 mls 15N gas) | 1.412 | 3.78 | 17.05 | 0.372697 |
| Run 1 non-sterilized (20 mls 15N gas) | 1.733 | 3.50 | 23.49 | 0.375049 |
| Run 2 sterilized (125 mls 15N gas) | 1.091 | 2.95 | 194.18 | 0.437322 |
| Run 2 non-sterilized (125 mls 15N gas) | 1.049 | 2.91 | 214.09 | 0.444582 |
| Run 3 sterilized (250 mls 15N gas) | 1.962 | 4.21 | 152.92 | 0.422274 |
| Run 3 non-sterilized (250 mls 15N gas) | 1.250 | 3.2 | 385.67 | 0.507094 |
aBelow detection limit