Food-chain transfer of Zn from contaminated Urtica dioica and Acer pseudoplatanus to the aphids Microlophium carnosum and Drepanosiphum platanoidis Schrank

Sinnett, D., Hutchings, T. and Hodson, M. (2010) Food-chain transfer of Zn from contaminated Urtica dioica and Acer pseudoplatanus to the aphids Microlophium carnosum and Drepanosiphum platanoidis Schrank. Environmental Pollution, 158 (1). pp. 267-271. ISSN 0269-7491

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Publisher's URL: http://dx.doi.org/10.1016/j.envpol.2009.07.008

Abstract

This study examines the food-chain transfer of Zn from two plant species, Urtica dioica (stinging nettle)and Acer pseudoplatanus (sycamore maple), into their corresponding aphid species, Microlophium carnosum and Drepanosiphum platanoidis. The plants were grown in a hydroponic system using solutions with increasing concentrations of Zn from 0.02 to 41.9 mg Zn/l. Above-ground tissue concentrations in U. dioica and M. carnosum increased with increasing Zn exposure (p < 0.001). Zn concentrations in A. pseudoplatanus also increased with solution concentration from the control to the 9.8 mg Zn/l solution, above which concentrations remained constant. Zn concentrations in both D. platanoidis and the phloem tissue of A. pseudoplatanus were not affected by the Zn concentration in the watering solution. It appears that A. pseudoplatanus was able to limit Zn transport in the phloem, resulting in constant Zn exposure to the aphids. Zn concentrations in D. platanoidis were around three times those in M. carnosum.

Item Type:Article
Additional Information:This is a preprint of an article published in Environmental Pollution © 2010 [copyright Elsevier]. Environmental Pollution is available online at: http://www.elsevier.com/wps/find/journaldescription.cws_home/405856/description#description
Uncontrolled Keywords:stinging nettle, sycamore maple, commn nettle aphid, sycamore aphid, contaminated land
Faculty/Department:Faculty of Environment and Technology > Department of Architecture and the Built Environment
ID Code:7601
Deposited By: Dr D. Sinnett
Deposited On:20 May 2010 10:27
Last Modified:09 Oct 2013 21:40

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