The accumulation of the rare earth elements and of scandium in successive needle age classes of Norway spruce

Wytténbach, A.; Schleppi, Patrick; Bucher, J.B.; Furrer, V.; Tobler, L.

doi:10.1007/bf02917214

Cited by 55 publications

(20 citation statements)

References 10 publications

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“…We undertook the REE study of the peat vegetation to see if there is any characteristic signature different from the soil-grown plants. According to our survey (Fu et al, 1998(Fu et al, , 2000(Fu et al, , 2001) and earlier studies (Ichihashi et al, 1992;Wyttenbach et al, 1994Wyttenbach et al, , 1998, most of the soil-grown plants show similar REE patterns with slight differences in the slope of the overall patterns; seaweeds showed different REE signature from that of soil-grown plants; the soil-grown plants and the seaweeds showed a various magnitude of Ce anomalies. Here we report the REE pattern of peat moss and peat grass, which are the two typical vegetation of the peatland, from the Ozegahara peatland and laboratory, REEs were concentrated with solvent extraction after the protocol described in our earlier papers (Fu et al, 1998(Fu et al, , 2001) and were determined with ICP-MS (VGPlasmaQuad-3, FI Elemental Analysis Co. Ltd., UK).…”

Section: Introductionsupporting

confidence: 50%

Absence of Ce anomaly in the REE patterns of peat moss and peat grass in the Ozegahara peatland.

Akagi

Fu²,

Yabuki³

2002

Geochem. J.

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The rare earth elements (REEs) of the two major vegetation of the Ozegahara peatland, peat moss (Sphagnum sp.) and peat grass (Carex sp.), were determined. The overall variation of the chondrite-normalized REE patterns was almost identical to that of soil-grown plants except for cerium. Peat moss and peat grass showed no cerium anomaly, while all the soil-grown plants we have surveyed showed negative cerium anomaly. The E H and pH condition to produce the cerium anomaly was discussed and the peatland was found to be too low in E H or in pH to the appearance of the cerium anomaly. The E H -pH condition of the peat water in the Ozegahara peatland seems to be determined largely by FeOOH-Fe 2+ system. a characteristic feature of patterns and its geochemical implication. EXPERIMENTS

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Section: Introductionsupporting

confidence: 50%

Absence of Ce anomaly in the REE patterns of peat moss and peat grass in the Ozegahara peatland.

Akagi

Fu²,

Yabuki³

2002

Geochem. J.

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“…For example, about 700 ng/g La was reported in a species of fern (Matteuccia) (7), but it can be less than 10 ng/g in the needles of Norwegian spruce (Picea abies) (8). Possible reasons for the difference include the difference of REE abundances in soils and the species-specific uptake of REEs by plants (9)(10)(11)(12).…”

Section: Introductionmentioning

confidence: 99%

“…This might be the result of the shortcomings in field investigation, such as extremely low concentration ratios of plant/soil, contamination of plant samples with soil and dust, and the uncertainty of the normalization procedure (8,21). In this study, cultural experiments were used to find out the effects of an inorganic ligand, phosphate (Pi), and an organic ligand, citrate (CA), on accumulation and fractionation of REEs in wheat, and their mechanisms were discussed.…”

Section: Introductionmentioning

confidence: 99%

Role of Ligands in Accumulation and Fractionation of Rare Earth Elements in Plants: Examples of Phosphate and Citrate

Ding

Liang

Zhang

et al. 2005

BTER

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Few studies have been carried out on the effects of ligands on rare earth element (REE) bioaccumulation processes. In this study, the effects of phosphate (Pi, an inorganic ligand) and citrate (an organic ligand) on accumulation and fractionation of REEs in wheat were investigated using aqueous culture with extraneous mixed REEs (MRE). The results show that initial Pi solution culture at various levels followed by exposure to a fixed-MRE solution did not significantly change the total concentrations of REEs (ΣREE) in roots, whereas the ΣREE in leaves dramatically decreased with increasing levels of Pi applied. Simultaneous culture of wheat with mixture of MRE and citrate solutions caused obvious decreases of the ΣREE in both roots and leaves. Compared with MRE, significant fractionations of REEs were found in wheat organs when no ligand was applied. Notable middle REE (MREE) enrichment and M-type tetrad effect were observed in the roots, and heavy REE (HREE) enrichment and W-type tetrad effect existed in the leaves. Pi treatments did not significantly affect the fractionations of *Author to whom all correspondence and reprint requests should be addressed.REEs in the roots, but enrichment of HREEs in the leaves slightly increased at the highest level of Pi applied. Fractionations of REEs in both roots and leaves decreased with increasing levels of citrate applied; at higher levels of citrate (≥150 µM), no above fractionation features were observed in wheat, but light REE (LREE) enrichment existed in the roots and leaves. The results indicate that ligands might play important roles in accumulation and fractionation of REEs during bioaccumulation processes.

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“…In many cases, several elements showed closely related patterns. Detailed results have been published for Rb and Cs, for Ca, Sr, Ba, and Mn, for Sc and the rare earth elements, and for Al Wyttenbach et al 1994Wyttenbach et al , 1995aWyttenbach et al , 1996.…”

Section: Introductionmentioning

confidence: 99%

The concentrations of Fe, Zn and Co in successive needle age classes of Norway spruce [Picea abies (L.) Karst.]

Wytténbach¹,

Tobler²

2000

Trees

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The concentrations of Fe, Zn and Co were determined in up to five successive needle age classes in 54 individual Norway spruce trees from eight different sites (soil pH 3.1-7.7). Fe concentrations (12-25 µg in needles from the current year) were lower than most published values, due to the removal of surface contamination prior to analysis. Fe showed a significant positive correlation with Al. Successive needle age classes either had constant values or showed an increase for Fe concentrations; individual trees on a given site were rather uniform in their behaviour. Zn concentrations were 19-40 µg/g. On acid sites, they showed a positive correlation with total soil concentrations. The majority of trees showed decreasing Zn concentrations in successive needle age classes, but constant or increasing concentrations were also found; site homogeneity was less than with Fe. Co concentrations differed between trees on a neutral soil (12 ng/g) and on acid soils (41-174 ng/g). They showed a significant positive correlation with Mn needle concentrations. The changes of Co with needle age in most, but not all, trees were similar to those of Zn. The different changes of Fe, Zn and Co with needle age may be due to a different retranslocation. A modest retranslocation of Fe as opposed to a high retranslocation of Zn and Co (in most trees) is consistent with the observed behaviour.

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The accumulation of the rare earth elements and of scandium in successive needle age classes of Norway spruce

Cited by 55 publications

References 10 publications

Absence of Ce anomaly in the REE patterns of peat moss and peat grass in the Ozegahara peatland.

Absence of Ce anomaly in the REE patterns of peat moss and peat grass in the Ozegahara peatland.

Role of Ligands in Accumulation and Fractionation of Rare Earth Elements in Plants: Examples of Phosphate and Citrate

The concentrations of Fe, Zn and Co in successive needle age classes of Norway spruce [Picea abies (L.) Karst.]

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