Regulation of heavy metal concentrations in cereal grains from uranium mine soils

Gramss, G. and Voigt, K-D. (2012) Regulation of heavy metal concentrations in cereal grains from uranium mine soils. Plant and Soil. 14 p..

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Aims Along a gradient of diminishing heavy metal (HM) concentrations formed by local inclusions of uranium mine soils into non-contaminated cropland, duplicate 1- m2 plots of 3 winter wheat cvs. (Akteur E, Brilliant A, and Bussard E) were established at 3 positions within a winter rye (cv. Visello) culture. It was the goal to determine permissible soil HM concentrations tolerated by cereal cvs. with variable excluder properties, and regulatory mechanisms which optimize the concentrations of essential minerals and radionuclide analogues in viable seeds from geologically related soils with divergingHMcontent. Methods Total metal concentrations / nitrogen species in soils, shoots, and mature grains were determined by ICP-MS / spectrophotometry, and Kjeldahl analyses. Results No non-permissible concentrations in grains of the 4 cereal cvs. were caused by elevated but aged total soil resources (mg kg-1 DW) in As (156); Cu (283); Mn (2,130); Pb (150); and in Zn (3,005) in the case of Bussard although CdCuZn elicited phytotoxicity symptoms. Uranium (41) contaminated grains of Akteur and Brilliant but not of Bussard and Visello due to their excluder properties.

Item Type: Article
Additional Information: The authors are obliged to Dr. Dirk Merten, Institute of Geosciences of the Friedrich-Schiller- University in Jena for elaborating metal analytical data of grain samples as well as to Dipl. Agr. Dieter Senf, Agrargenossenschaft Schöps e. G., D-07768 Schöps, for providing plant material.
Uncontrolled Keywords: Heavy metal, Radionuclide, Metal homeostasis, Metalloprotein, Excluder plant, Transfer factor
Author Affiliation: Institute of Goesciences, Friedrich-Schiller-University, Burgweg 11, 07743 Jena, Germany
Subjects: Soil Science and Microbiology > Soil Sciences
Divisions: General
Depositing User: Mr Siva Shankar
Date Deposited: 13 Jul 2012 05:43
Last Modified: 13 Jul 2012 05:44
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