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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-54365

Singh, B R; Gupta, S K; Azaizeh, H; Shilev, S; Sudre, D; Song, W Y; Martinoia, E; Mench, M (2011). Safety of food crops on land contaminated with trace elements. Journal of the Science of Food and Agriculture, 91(8):1349-1366.

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Abstract

Contamination of agricultural soils with trace elements (TEs) through municipal and industrial wastes, atmospheric deposition and fertilisers is a matter of great global concern. Since TE accumulation in edible plant parts depends on soil characteristics, plant genotype and agricultural practices, those soil- and plant-specific options that restrict the entry of harmful TEs into the food chain to protect human and animal health are reviewed. Soil options such as in situ stabilisation of TEs in soils, changes in physicochemical parameters, fertiliser management, element interactions and agronomic practices reduce TE uptake by food crops. Furthermore, phytoremediation and solubilisation as alternative techniques to reduce TE concentrations in soils are also discussed. Among plant options, selection of species and cultivars, metabolic processes and microbial transformations in the rhizosphere can potentially affect TE uptake and distribution in plants. For this purpose, genetic variations are exploited to select cultivars with low uptake potential, especially low-cadmium accumulator wheat and rice cultivars. The microbial reduction of elements and transformations in the rhizosphere are other key players in the cycling of TEs that may offer the basis for a wide range of innovative biotechnological processes. It is thus concluded that appropriate combination of soil- and plant-specific options can minimise TE transfer to the food chain.

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12 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, further contribution
Communities & Collections:07 Faculty of Science > Institute of Plant Biology
DDC:580 Plants (Botany)
Language:English
Date:2011
Deposited On:27 Jan 2012 12:31
Last Modified:27 Nov 2013 16:42
Publisher:Wiley-Blackwell
ISSN:0022-5142
Additional Information:This is a preprint of an article published in Singh, B R; Gupta, S K; Azaizeh, H; Shilev, S; Sudre, D; Song, W Y; Martinoia, E; Mench, M (2011). Safety of food crops on land contaminated with trace elements. Journal of the Science of Food and Agriculture, 91(8):1349-1366.
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:10.1002/jsfa.4355
PubMed ID:21445857

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