Title: Uptake and translocation of lead and pyrene by ryegrass cultivated in aged spiked soil

Authors: Sardar Khan, Shafiqur Rehman, Qing Cao, Noor Jehan, Muhammad Tahir Shah

Addresses: Department of Environmental Sciences, University of Peshawar, 25120 Peshawar, Pakistan. ' Department of Environmental Sciences, University of Peshawar, 25120 Peshawar, Pakistan. ' Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. ' Department of Environmental Sciences, University of Peshawar, 25120 Peshawar, Pakistan. ' National Center of Excellence in Geology, University of Peshawar, Pakistan

Abstract: A greenhouse study was conducted to investigate the uptake and translocation of lead and pyrene in ryegrass (Lolium multiflorum L), cultivated in spiked soil. After ageing, the pots were cultivated with ryegrass seedlings to investigate soil-to-plant transfer characteristics of lead and pyrene. In the spiked soils, the biomass of plants was not significantly lower in comparison with the control, while only lead-spiked soil showed significantly lower (P ≤ 0.05) biomass for plant tissues. Furthermore, the pyrene and lead concentrations in the root tissues were significantly higher (P < 0.01) in the lead/pyrene-spiked soil grown plants than in the control, lead and pyrene-spiked soils.

Keywords: spiked soil; pyrene; degradation; rhizosphere; non-rhizosphere; ageing process; ryegrass; plant uptake; translocation; lead; soil-to-plant transfer; biomass; root tissues; soil contamination; environmental pollution.

DOI: 10.1504/IJEP.2011.039089

International Journal of Environment and Pollution, 2011 Vol.45 No.1/2/3, pp.110 - 122

Available online: 16 Mar 2011 *

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