Table 2.
Metabolites of AMT detected in different plant parts of cress and pea exposed to a 1 mg L−1 solution over a period of 16 days. Values refer to average peak areas from measurements in triplicate
| Metabolite | Day 1 | Day 2 | Day 4 | Day 8 | Day 16 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cress | |||||||||||||||
| Roots | Leaves | Roots | Leaves | Roots | Leaves | Roots | Leaves | Roots | Leaves | ||||||
| AMT-OH* | 3.7 | 0.5 | 5.6 | 1.5 | 3.7 | 2.0 | 3.7 | 5.5 | 2.0 | 11 | |||||
| NTP** | 7.5 | 1.2 | 5.2 | 4.8 | 3.0 | 5.0 | 1.7 | 11 | 2.0 | 16 | |||||
| NTP-OH** | 1.7 | n.d | 2.7 | 0.5 | 4.7 | 0.8 | 3.0 | 4.5 | 5.2 | 13 | |||||
| DMN*** | 7.8 | 1.1 | 3.5 | 3.1 | 1.7 | 3.4 | 1.5 | 7.0 | 1.7 | 6.3 | |||||
| Pea | |||||||||||||||
| Roots | Stem | Leaves | Roots | Stem | Leaves | Roots | Stem | Leaves | Roots | Stem | Leaves | Roots | Stem | Leaves | |
| AMT-OH* | 6.0 | 0.8 | 0.8 | 2.4 | 0.8 | 0.8 | 3.2 | 2.0 | 8.0 | 4.0 | 2.0 | 11 | |||
| NTP* | 3.2 | 0.3 | 0.1 | 3.2 | 0.6 | 0.2 | 7.2 | 1.3 | 2.7 | 8.5 | 3.1 | 4.5 | |||
| NTP-OH** | 0.7 | n.d | n.d | 0.7 | n.d | n.d | 1.0 | 1.0 | 2.8 | 1.7 | 1.2 | 4.5 | |||
| DMN*** | 1.8 | n.d | n.d | 1.1 | n.d | n.d | 1.8 | n.d | 2.0 | 1.8 | 1.0 | 5.7 | |||
n.d. not detected, *area [arbitrary units] × 106, **area [arbitrary units] × 105, ***area [arbitrary units] × 104