Table 1.
Mean sodium, chloride and potassium contents of leaf tissues (g kg−1 ± 1 SE) and Na/K ratio.
| Plants | Collection site | Mean concentration g kg−1 ± 1 SE | Na:K molar ratio ± 1 SE | ||
|---|---|---|---|---|---|
| Na+ | K+ | Cl− | |||
| Non-symbiotic | |||||
| Gaultheria mucronata | Pía Glacier chronosequence | 0.30 ± 0.03 | 4.77 ± 0.47 | 14.50 ± 0.70 | 0.12 ± 0.01 |
| Nothofagus betuloides | Pía Glacier chronosequence | 0.23 ± 0.02 | 3.97 ± 0.50 | 15.23 ± 1.94 | 0.10 ± 0.02 |
| N. antarctica | Pía Glacier chronosequence | 0.37 ± 0.05 | 5.95 ± 0.27 | 20.29 ± 2.30 | 0.12 ± 0.02 |
| Tierra del Fuego, Chile | |||||
| Gunnera magellanica | Pía Glacier chronosequence | 4.41 ± 0.40 | 10.27 ± 0.70 | 26.99 ± 2.01 | 0.74 ± 0.05 |
| Parry Glacier chronosequence | 3.99 ± 0.26 | 6.78 ± 1.69 | 32.08 ± 6.53 | 1.01 ± 0.05 | |
| Puerto Williams – coast | 8.95 ± 1.89 | 4.32 ± 0.80 | 25.52 ± 4.24 | 3.58 ± 0.34 | |
| Puerto Williams – forest | 8.90 ± 1.62 | 5.27 ± 0.65 | 16.32 ± 1.76 | 2.51 ± 0.39 | |
| Puerto Williams – tundra | 6.98 ± 1.42 | 7.17 ± 1.18 | 16.29 ± 3.37 | 1.69 ± 0.21 | |
| In greenhouse, Madrid | |||||
| Two years | Puerto Williams – coast | 4.79 ± 0.18 | 8.46 ± 2.03 | 44.10 ± 5.86 | 1.01 ± 0.21 |
| Puerto Williams – forest | 5.09 ± 0.13 | 3.29 ± 0.14 | 38.63 ± 5.11 | 2.65 ± 0.16 | |
| Puerto Williams – tundra | 3.98 ± 0.13 | 5.34 ± 0.04 | 40.18 ± 3.77 | 1.27 ± 0.07 | |
| Gunnera species from other locations | |||||
| G. magellanica | Cornwall, nursery | 4.66 ± 0.18 | 11.15 ± 0.36 | 43.47 ± 8.58 | 0.71 ± 0.02 |
| G. magellanica | Scotland, nursery | 4.34 ± 0.27 | 9.43 ± 0.83 | 21.09 ± 6.48 | 0.78 ± 0.02 |
| Gunnera manicata | Hamilton, New Zealand | 3.56 ± 0.31 | 6.74 ± 0.37 | 25.78 ± 1.32 | 0.90 ± 0.07 |
| G. manicata | Lamorna, Cornwall, England | 7.61 ± 0.39 | 4.67 ± 0.24 | 51.63 ± 6.71 | 2.79 ± 0.25 |
| G. manicata | Kew Gardens, London, England | 6.23 ± 0.08 | 22.05 ± 0.76 | 21.09 ± 1.25 | 0.48 ± 0.01 |
| G. perpensa | Kew Gardens, London, England | 5.11 ± 0.26 | 6.19 ± 0.15 | 26.95 ± 4.04 | 1.40 ± 0.04 |
| G. hamiltonii | Kew Gardens, London, England | 4.58 ± 0.44 | 28.29 ± 0.64 | 51.03 ± 5.56 | 0.28 ± 0.02 |
| G. tinctoria | Kew Gardens, London, England | 3.68 ± 0.33 | 7.25 ± 0.50 | 19.66 ± 1.25 | 0.86 ± 0.02 |
| Azolla samples | |||||
| Azolla rubra | Mangakahu, New Zealand | 10.42 ± 0.30 | 18.51 ± 0.97 | 31.68 ± 3.89 | 0.96 ± 0.02 |
| A. rubra | Invercargill, New Zealand | 15.77 ± 4.19 | 25.74 ± 8.13 | 22.69 ± 7.10 | 0.89 ± 0.07 |
| A. rubra | Hamilton, New Zealand | 13.92 ± 1.41 | 17.80 ± 0.79 | 45.58 ± 2.78 | 1.33 ± 0.07 |
| A. filiculoides | Cáceres, Spain | 13.65 ± 0.46 | 17.10 ± 0.38 | 42.49 ± 2.55 | 1.36 ± 0.02 |
| Cycas revoluta | |||||
| Coralloid root tissue. | Waikato University, New Zealand | 2.52 ± 0.34 | 7.53 ± 0.30 | 14.95 ± 1.64 | 0.57 ± 0.06 |
| Leaf tissue | Waikato University, New Zealand | 0.53 ± 0.11 | 5.4 ± 0.68 | 0.44 ± 0.04 | 0.20 ± 0.04 |