Contrasting behaviour of cadmium and zinc in a soil-plant-arthropod system
Authors: Green, I.D., Jeffries, C., Diaz, A. and Tibbett, M.
Journal: Chemosphere
Volume: 64
Issue: 7
Pages: 1115-1121
ISSN: 0045-6535
DOI: 10.1016/j.chemosphere.2005.11.074
Abstract:This study investigates the transfer of Cd and Zn from a soil amended with sewage sludge at rates up to 100 t ha-1 through a multi-trophic system consisting of barley, the aphid Sitobion avenae and the larvae of the lacewing Chrysoperla carnae. Results show marked differences in the transfer of the two metals. Cadmium was freely accumulated in barley roots, but accumulation in the shoot was restricted to a concentration of around 0.22 mg kg-1 (dry weight). This limited the transfer of Cd to higher trophic levels and resulted in no significant accumulation of Cd in S. avenae or in C. carnae. Zinc transfer in the system was largely unrestricted, resulting in significant accumulation in roots and shoots, in S. avenae and in C. carnae. Cadmium biomagnification occurred in lacewing pupae, with concentrations up to 3.6 times greater than in aphids. S. avenae biomagnified Zn by a factor of ca. 2.5 at low sludge amendment rates, but biomagnification decreased to a factor of 1.4 at the highest amendment rate. Biomagnification of Zn did not occur in C. carnae, but concentrations were up to 3.5 time higher than in soil. Results are discussed in light of the mechanisms regulating transfer of the two metals in the system. © 2005 Elsevier Ltd. All rights reserved.
Source: Scopus
Contrasting behaviour of cadmium and zinc in a soil-plant-arthropod system.
Authors: Green, I.D., Jeffries, C., Diaz, A. and Tibbett, M.
Journal: Chemosphere
Volume: 64
Issue: 7
Pages: 1115-1121
ISSN: 0045-6535
DOI: 10.1016/j.chemosphere.2005.11.074
Abstract:This study investigates the transfer of Cd and Zn from a soil amended with sewage sludge at rates up to 100 t ha(-1) through a multi-trophic system consisting of barley, the aphid Sitobion avenae and the larvae of the lacewing Chrysoperla carnae. Results show marked differences in the transfer of the two metals. Cadmium was freely accumulated in barley roots, but accumulation in the shoot was restricted to a concentration of around 0.22 mg kg(-1) (dry weight). This limited the transfer of Cd to higher trophic levels and resulted in no significant accumulation of Cd in S. avenae or in C. carnae. Zinc transfer in the system was largely unrestricted, resulting in significant accumulation in roots and shoots, in S. avenae and in C. carnae. Cadmium biomagnification occurred in lacewing pupae, with concentrations up to 3.6 times greater than in aphids. S. avenae biomagnified Zn by a factor of ca. 2.5 at low sludge amendment rates, but biomagnification decreased to a factor of 1.4 at the highest amendment rate. Biomagnification of Zn did not occur in C. carnae, but concentrations were up to 3.5 time higher than in soil. Results are discussed in light of the mechanisms regulating transfer of the two metals in the system.
Source: PubMed
Contrasting behaviour of cadmium and zinc in a soil-plant-arthropod system
Authors: Green, I.D., Jeffries, C., Diaz, A. and Tibbett, M.
Journal: CHEMOSPHERE
Volume: 64
Issue: 7
Pages: 1115-1121
ISSN: 0045-6535
DOI: 10.1016/j.chemosphere.2005.11.074
Source: Web of Science (Lite)
Contrasting Behaviour of Cadmium and Zinc in a Soil-Plant-Arthropod System
Authors: Green, I.D., Jeffries, C., Diaz, A. and Tibbett, M.
Journal: Chemosphere
Volume: 64
Pages: 1115-1121
ISSN: 0045-6535
DOI: 10.1016/j.chemosphere.2005.11.074
Abstract:This study investigates the transfer of Cd and Zn from a soil amended with sewage sludge at rates up to 100 t ha−1 through a multi-trophic system consisting of barley, the aphid Sitobion avenae and the larvae of the lacewing Chrysoperla carnae. Results show marked differences in the transfer of the two metals. Cadmium was freely accumulated in barley roots, but accumulation in the shoot was restricted to a concentration of around 0.22 mg kg−1 (dry weight). This limited the transfer of Cd to higher trophic levels and resulted in no significant accumulation of Cd in S. avenae or in C. carnae. Zinc transfer in the system was largely unrestricted, resulting in significant accumulation in roots and shoots, in S. avenae and in C. carnae. Cadmium biomagnification occurred in lacewing pupae, with concentrations up to 3.6 times greater than in aphids. S. avenae biomagnified Zn by a factor of ca. 2.5 at low sludge amendment rates, but biomagnification decreased to a factor of 1.4 at the highest amendment rate. Biomagnification of Zn did not occur in C. carnae, but concentrations were up to 3.5 time higher than in soil. Results are discussed in light of the mechanisms regulating transfer of the two metals in the system.
Source: Manual
Preferred by: Iain Green and Anita Diaz Isla
Contrasting behaviour of cadmium and zinc in a soil-plant-arthropod system.
Authors: Green, I.D., Jeffries, C., Diaz, A. and Tibbett, M.
Journal: Chemosphere
Volume: 64
Issue: 7
Pages: 1115-1121
eISSN: 1879-1298
ISSN: 0045-6535
DOI: 10.1016/j.chemosphere.2005.11.074
Abstract:This study investigates the transfer of Cd and Zn from a soil amended with sewage sludge at rates up to 100 t ha(-1) through a multi-trophic system consisting of barley, the aphid Sitobion avenae and the larvae of the lacewing Chrysoperla carnae. Results show marked differences in the transfer of the two metals. Cadmium was freely accumulated in barley roots, but accumulation in the shoot was restricted to a concentration of around 0.22 mg kg(-1) (dry weight). This limited the transfer of Cd to higher trophic levels and resulted in no significant accumulation of Cd in S. avenae or in C. carnae. Zinc transfer in the system was largely unrestricted, resulting in significant accumulation in roots and shoots, in S. avenae and in C. carnae. Cadmium biomagnification occurred in lacewing pupae, with concentrations up to 3.6 times greater than in aphids. S. avenae biomagnified Zn by a factor of ca. 2.5 at low sludge amendment rates, but biomagnification decreased to a factor of 1.4 at the highest amendment rate. Biomagnification of Zn did not occur in C. carnae, but concentrations were up to 3.5 time higher than in soil. Results are discussed in light of the mechanisms regulating transfer of the two metals in the system.
Source: Europe PubMed Central