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Soil to plant transfer of radionuclides: Predicting the fate of multiple radioisotopes in plants

Willey, Neil


Neil Willey
Professor in Env Plant Physiology


Predicting soil-to-plant transfer of radionuclides is restricted by the range of species for which concentration ratios (CRs) have been measured. Here the radioecological utility of meta-analyses of phylogenetic effects on alkali earth metals will be explored for applications such as 'gap-filling' of CRs, the identification of sentinel biomonitor plants and the selection of taxa for phytoremediation of radionuclide contaminated soils. REML modelling of extensive CR/concentration datasets shows that the concentrations in plants of Ca, Mg and Sr are significantly influenced by phylogeny. Phylogenetic effects of these elements are shown here to be similar. Ratios of Ca/Mg and Ca/Sr are known to be quite stable in plants so, assuming that Sr/Ra ratios are stable, phylogenetic effects and estimated mean CRs are used to predict Ra CRs for groups of plants with few measured data. Overall, there are well quantified plant variables that could contribute significantly to improving predictions of the fate radioisotopes in the soil-plant system. © 2013 Elsevier Ltd.


Willey, N. (2014). Soil to plant transfer of radionuclides: Predicting the fate of multiple radioisotopes in plants. Journal of Environmental Radioactivity, 133, 31-34.

Journal Article Type Article
Publication Date Jan 1, 2014
Deposit Date Sep 18, 2013
Journal Journal of Environmental Radioactivity
Print ISSN 0265-931X
Electronic ISSN 1879-1700
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 133
Pages 31-34
Keywords phylogeny, strontium, radium, stoichiometry, ionomics
Public URL
Publisher URL
Additional Information Additional Information : Available online 5 September 2013