A - Papers appearing in refereed journals
Mico, C., Li, H. F., Zhao, F-J. and McGrath, S. P. 2008. Use of Co speciation and soil properties to explain variation in Co toxicity to root growth of barley (Hordeum vulgare L.) in different soils. Environmental Pollution. 156 (3), pp. 883-890. https://doi.org/10.1016/j.envpol.2008.05.017
Authors | Mico, C., Li, H. F., Zhao, F-J. and McGrath, S. P. |
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Abstract | The influence of soil properties on the bioavailability and toxicity of Co to barley (Hordeum vulgare L.) root elongation was investigated. Ten soils varying widely in soil properties were amended with seven doses of CoCl2. Soil properties greatly influenced the expression of Co toxicity. The effective concentration of added Co causing 50% inhibition (EC50) ranged from 45 to 863 mg kg−1, representing almost 20-fold variation among soils. Furthermore, we investigated Co toxicity in relation to Co concentrations and free Co2+ activity in soil solution. The EC50 values showed variation among soils of 17- and 29-fold, based on the Co concentration in soil solution and free Co2+ activity, respectively. Single regressions were carried out between Co toxicity threshold values and selected soil properties. Models obtained showed that soil effective cation exchange capacity (eCEC) and exchangeable calcium were the most consistent single predictors of the EC50 values based on soil added Co. |
Keywords | Cobalt; Soil properties; Plant toxicity; Barley; Bioavailability; Risk assessment |
Year of Publication | 2008 |
Journal | Environmental Pollution |
Journal citation | 156 (3), pp. 883-890 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.envpol.2008.05.017 |
Open access | Published as non-open access |
Funder | Biotechnology and Biological Sciences Research Council |
Funder project or code | SEF |
Toxicity and bioavailability of molybdenum in terrestrial environments | |
Soil protection and remediation | |
Output status | Published |
Publication dates | |
Online | 09 Jun 2008 |
Publication process dates | |
Accepted | 20 May 2008 |
Publisher | Elsevier Sci Ltd |
ISSN | 0269-7491 |
Permalink - https://repository.rothamsted.ac.uk/item/8q09w/use-of-co-speciation-and-soil-properties-to-explain-variation-in-co-toxicity-to-root-growth-of-barley-hordeum-vulgare-l-in-different-soils
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