Table. 2 Zinc concentrations (µg g− 1) (n = 4) and δ66Zn isotopic ratios (‰) (n = 2) for field collected plant samples from the native habitat of D. subsp. pilosum and D. subsp. sumatranum. Concentrations are given in ranges and mean, and isotope ratios are given in ranges
Plant Fraction | Dichapetalum gelonioides subsp. pilosum | Dichapetalum gelonioides subsp. sumatranum | ||||
|---|---|---|---|---|---|---|
|  | Zinc concentrations (µg g -1 ) | δ 66 Zn isotopic ratios (‰) | SD | Zinc concentrations (µg g -1 ) | δ 66 Zn isotopic ratios (‰) | SD |
Young Leaves | 3750–11 100 [6970] | 0.26–0.41 | 0.04–0.05 | 4250–32 400 [14 400] | 0.24 | 0.06–0.08 |
Old Leaves | 6370–11 200 [8350] | 0.16–0.41 | 0.05–0.08 | 5370–30 800 [17 400] | 0.33–0.35 | 0.04–0.07 |
Senescent Leaves | 3740–9850 [6400] | 0.26–0.39 | 0.04–0.07 | – | – | – |
Phloem tissue | 3100–4050 [3580] | 0.23–0.50 | 0.05 | 3420–15 800 [9610] | 0.72–0.77 | 0.05–0.06 |
Young twigs | 1910–5450 [4320] | 0.27–0.37 | 0.06 | 250–13 400 [5620] | 0.36–0.37 | 0.05 |
Old twigs | 680–1850 [1330] | 0.42 | 0.05–0.07 | 2250–7610 [4070] | 0.7 | 0.07 |
Wood | 640–2180 [1180] | 0.18–0.48 | 0.03–0.06 | 780–13 700 [5550] | 0.37–0.64 | 0.05 |
Main roots | 2900–5470 [4010] | 0.63–0.66 | 0.05–0.06 | 1860–25 300 [11 200] | 0.61–0.62 | 0.04–0.05 |