Table I.
Metal concentrations in the plant samples that were also analyzed by EXAFS
To obtain representative datasets within the limited Synchrotron beam time, aliquots of samples from all plants of the same metal treatment (see “Materials and Methods”) were mixed so that each EXAFS sample represented the average of four to eight plants.
| Sample | Zn | Cd |
|---|---|---|
| mg g-1 | ||
| Young leaves, 100 μm Cd + 10 μm Zn | 0.69 | 14 |
| Mature leaves, 100 μm Cd + 10 μm Zn | 0.94 | 21 |
| Mature leaves, 50 μm Cd + 10 μm Zn | 1.18 | 19 |
| Senescent leaves, 100 μm Cd + 10 μm Zn | 0.31 | 3.41 |
| Dead leaves, 100 μm Cd + 10 μm Zn | 0.79 | 12 |
| Mature petioles, 100 μm Cd + 10 μm Zn | 0.68 | 10 |
| Senescent petioles, 100 μm Cd + 10 μm Zn | 0.34 | 3.4 |
| Mature stems, 100 μm Cd + 10 μm Zn | 0.57 | 14 |
| Senescent stems, 100 μm Cd + 10 μm Zn | 0.27 | 3.9 |
| Mature leaves, 0 μm Cd + 10 μm Zn | 0.45 | 0.016 |
| Mature petioles, 0 μm Cd + 10 μm Zn | 0.27 | 0.004 |
| Mature stems, 0 μm Cd + 10 μm Zn | 0.065 | 0.005 |