Differential uptake, partitioning and transfer of Cd and Zn in the soil-pea plant-aphid system

This source preferred by Iain Green

Authors: Green, I.D. and Tibbett, M.

http://pubs.acs.org/doi/abs/10.1021/es071992c

Journal: Environmental Science and Technology

Volume: 42

Pages: 450-455

ISSN: 0013-936X

DOI: 10.1021/es071992c

The biomagnification of trace metals during transfer from contaminated soil to higher trophic levels may potentially result in the exposure of predatory arthropods to toxic concentrations of these elements. This study examined the transfer of Cd and Zn in a soil−plant−arthropod system grown in series of field plots that had received two annual applications of municipal biosolids with elevated levels of Cd and Zn. Results showed that biosolids amendment significantly increased the concentration of Cd in the soil and the shoots of pea plants and the concentration of Zn in the soil, pea roots, shoots, and pods. In addition, the ratio of Cd to Zn concentration showed that Zn was preferentially transferred compared to Cd through all parts of the system. As a consequence, Zn was biomagnified by the system whereas Cd was biominimized. Cd and Zn are considered to exhibit similar behaviors in biological systems. However, the Cd/Zn ratios demonstrated that in this system, Cd is much less labile in the root−shoot−pod and shoot−aphid pathways than Zn.

This data was imported from PubMed:

Authors: Green, I.D. and Tibbett, M.

Journal: Environ Sci Technol

Volume: 42

Issue: 2

Pages: 450-455

ISSN: 0013-936X

The biomagnification of trace metals during transfer from contaminated soil to higher trophic levels may potentially result in the exposure of predatory arthropods to toxic concentrations of these elements. This study examined the transfer of Cd and Zn in a soil-plant-arthropod system grown in series of field plots that had received two annual applications of municipal biosolids with elevated levels of Cd and Zn. Results showed that biosolids amendmentsignificantly increased the concentration of Cd in the soil and the shoots of pea plants and the concentration of Zn in the soil, pea roots, shoots, and pods. In addition, the ratio of Cd to Zn concentration showed that Zn was preferentially transferred compared to Cd through all parts of the system. As a consequence, Zn was biomagnified by the system whereas Cd was biominimized. Cd and Zn are considered to exhibit similar behaviors in biological systems. However, the Cd/Zn ratios demonstrated that in this system, Cd is much less labile in the root-shoot-pod and shoot-aphid pathways than Zn.

This data was imported from Scopus:

Authors: Green, I.D. and Tibbett, M.

Journal: Environmental Science and Technology

Volume: 42

Issue: 2

Pages: 450-455

ISSN: 0013-936X

DOI: 10.1021/es071992c

The biomagnification of trace metals during transfer from contaminated soil to higher trophic levels may potentially result in the exposure of predatory arthropods to toxic concentrations of these elements. This study examined the transfer of Cd and Zn in a soil-plant-arthropod system grown in series of field plots that had received two annual applications of municipal biosolids with elevated levels of Cd and Zn. Results showed that biosolids amendment significantly increased the concentration of Cd in the soil and the shoots of pea plants and the concentration of Zn in the soil, pea roots, shoots, and pods. In addition, the ratio of Cd to Zn concentration showed that Zn was preferentially transferred compared to Cd through all parts of the system. As a consequence, Zn was biomagnified by the system whereas Cd was biominimized. Cd and Zn are considered to exhibit similar behaviors in biological systems. However, the Cd/Zn ratios demonstrated that in this system, Cd is much less labile in the root-shoot-pod and shoot-aphid pathways than Zn. © 2008 American Chemical Society.

This data was imported from Web of Science (Lite):

Authors: Green, I.D. and Tibbett, M.

Journal: ENVIRONMENTAL SCIENCE & TECHNOLOGY

Volume: 42

Issue: 2

Pages: 450-455

ISSN: 0013-936X

DOI: 10.1021/es071992c

This data was imported from Europe PubMed Central:

Authors: Green, I.D. and Tibbett, M.

Journal: Environmental science & technology

Volume: 42

Issue: 2

Pages: 450-455

eISSN: 1520-5851

ISSN: 0013-936X

The biomagnification of trace metals during transfer from contaminated soil to higher trophic levels may potentially result in the exposure of predatory arthropods to toxic concentrations of these elements. This study examined the transfer of Cd and Zn in a soil-plant-arthropod system grown in series of field plots that had received two annual applications of municipal biosolids with elevated levels of Cd and Zn. Results showed that biosolids amendmentsignificantly increased the concentration of Cd in the soil and the shoots of pea plants and the concentration of Zn in the soil, pea roots, shoots, and pods. In addition, the ratio of Cd to Zn concentration showed that Zn was preferentially transferred compared to Cd through all parts of the system. As a consequence, Zn was biomagnified by the system whereas Cd was biominimized. Cd and Zn are considered to exhibit similar behaviors in biological systems. However, the Cd/Zn ratios demonstrated that in this system, Cd is much less labile in the root-shoot-pod and shoot-aphid pathways than Zn.

The data on this page was last updated at 04:45 on January 17, 2018.