Predicting Inter‐Taxa Differences in Plant Uptake of Cesium‐134/137
- 1 September 2005
- journal article
- research article
- Published by Wiley in Journal of Environmental Quality
- Vol. 34 (5), 1478-1489
- https://doi.org/10.2134/jeq2004.0454
Abstract
For 134/137Cs, and many other soil contaminants, research into transfer to plants has focused on particular crops and phytoremediation candidates, producing uptake data for a small proportion of all plant taxa. Despite the significance of differences in uptake between plant taxa, the capacity of soil-to-plant transfer models to predict them is currently confined to those taxa for which data exist, there being no method to predict uptake by other taxa. We used residual maximum likelihood (REML) analysis on data from experiments (including 89 plant taxa from China plus 32 phytoremediation candidates) together with data from the literature, to construct a database of relative 134/137Cs concentrations in 273 plant taxa. The REML 134/137Cs concentrations in plants are not normally distributed but significantly clustered. Analysis of variance (ANOVA), coded with a recent ordinal phylogeny for flowering plants, showed that plant taxa do not behave independently for 134/137Cs concentration because 42 and 15% of inter-taxa differences are associated with phylogeny above the species and ordinal level, respectively. In general, Eudicots, and especially the Caryophyllales, Asterales, and Brassicales, have high 134/137Cs concentrations, while the Fabales and Magnoliids, in particular Poales, have low 134/137Cs concentrations. Plants of the stress-tolerant ruderal (S-R) growth strategy sensu Grime have, in general, high concentrations of Cs, while those of the competitive (C) and generalist (C-S-R) strategies have low concentrations, although these effects are less pronounced than those of phylogeny. Plant phylogeny and growth strategy might thus be used to predict a significant portion of inter-taxa differences in plant uptake of 134/137Cs. Copyright © 2005. American Society of Agronomy, Crop Science Society of America, Soil Science Society . ASA, CSSA, SSSAKeywords
Funding Information
- British Nuclear Fuels
This publication has 43 references indexed in Scilit:
- An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IIBotanical Journal of the Linnean Society, 2003
- Molecular phylogenetics of Caryophyllales based on nuclear 18S rDNA and plastid rbcL, atpB, and matK DNA sequencesAmerican Journal of Botany, 2002
- Tansley Review No. 113New Phytologist, 2000
- A method to assess taxonomic variation in shoot caesium concentration among flowering plantsEnvironmental Pollution, 1999
- A comparison of stable caesium uptake by six grass species of contrasting growth strategyEnvironmental Pollution, 1997
- Differences in root uptake of radiocaesium by 30 plant taxaEnvironmental Pollution, 1997
- Screening of plant species for comparative uptake abilities of radioactive Co, Rb, Sr and Cs from soilJournal of Radioanalytical and Nuclear Chemistry, 1997
- Derivation of soil to plant transfer factors of radiocesium in Northern Greece after the Chernobyl accident, and comparison with greenhouse experimentsEnvironmental Pollution, 1990
- COMPARATIVE Cs-137 CONTENT OF AGRICULTURAL CROPS GROWN IN A CONTAMINATED SOILCanadian Journal of Plant Science, 1968
- UPTAKE BY PLANTS OF CS 137, CE 144, AND Y 91 AS INFLUENCED BY RHIZOSPHERE OXYGEN TREATMENTSSoil Science, 1965