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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

From: Isotopic signatures reveal zinc cycling in the natural habitat of hyperaccumulator Dichapetalum gelonioides subspecies from Malaysian Borneo

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
  1. SD standard deviation (instrumental analysis variability)