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Uptake and accumulation of phenanthrene and pyrene in spiked soils by Ryegrass (Lolium perenne L.).
J Environ Sci (China). 2005; 17(5):817-22.JE

Abstract

Phytoremediation has long been recognized as a cost-effective method for the removal of polycyclic aromatic hydrocarbons (PAHs) from soil. A study was conducted to investigate the uptake and accumulation of PAHs in root and shoot of Lolium perenne L. Pot experiments were conducted with series of concentrations of 3.31-378.37 mg/kg for phenanthrene and those of 4.22-365.38 mg/kg for pyrene in a greenhouse. The results showed that both ryegrass roots and shoots did take up PAHs from spiked soils, and generally increased with increasing concentrations of PAH in soil. Bioconcentration factors (BCFs) of phenanthrene by shoots and roots were 0.24--4.25 and 0.17-2.12 for the same treatment. BCFs of pyrene by shoots were 0.20--1.5, except for 4.06 in 4.32 mg/kg treatment, much lower than BCFs of pyrene by roots (0.58--2.28). BCFs of phenanthrene and pyrene tended to decrease with increasing concentrations of phenanthrene and pyrene in soil. Direct uptake and accumulation of these compounds by Lolium perenne L. was very low compared with the other loss pathways, which meant that plant-promoted microbial biodegradation might be the main contribution to plant-enhanced removal of phenanthrene and pyrene in soil. However, the presence of Lolium perenne L. significantly enhanced the removal of phenanthrene and pyrene in spiked soil. At the end of 60 d experiment, the extractable concentrations of phenanthrene and pyrene were lower in planted soil than in non-planted soil, about 83.24%--91.98% of phenanthrene and 68.53%-84.10% of pyrene were removed from soils, respectively. The results indicated that the removal of PAHs in contaminated soils was a feasible approach by using Lolium perenne L.

Authors+Show Affiliations

Xu SY
Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, China. shengyouxu22@yahoo.com.cn
Chen YX
No affiliation info available
Lin Q
No affiliation info available
Wu WX
No affiliation info available
Xue SG
No affiliation info available
Shen CF
No affiliation info available

MeSH

Analysis of VarianceBiodegradation, EnvironmentalEnvironmental PollutionLoliumPhenanthrenesPyrenesSoilSoil MicrobiologySoil Pollutants

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

16313010

Citation

Xu, Sheng-you, et al. "Uptake and Accumulation of Phenanthrene and Pyrene in Spiked Soils By Ryegrass (Lolium Perenne L.)." Journal of Environmental Sciences (China), vol. 17, no. 5, 2005, pp. 817-22.
Xu SY, Chen YX, Lin Q, et al. Uptake and accumulation of phenanthrene and pyrene in spiked soils by Ryegrass (Lolium perenne L.). J Environ Sci (China). 2005;17(5):817-22.
Xu, S. Y., Chen, Y. X., Lin, Q., Wu, W. X., Xue, S. G., & Shen, C. F. (2005). Uptake and accumulation of phenanthrene and pyrene in spiked soils by Ryegrass (Lolium perenne L.). Journal of Environmental Sciences (China), 17(5), 817-22.
Xu SY, et al. Uptake and Accumulation of Phenanthrene and Pyrene in Spiked Soils By Ryegrass (Lolium Perenne L.). J Environ Sci (China). 2005;17(5):817-22. PubMed PMID: 16313010.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Uptake and accumulation of phenanthrene and pyrene in spiked soils by Ryegrass (Lolium perenne L.). AU - Xu,Sheng-you, AU - Chen,Ying-xu, AU - Lin,Qi, AU - Wu,Wei-xiang, AU - Xue,Sheng-guo, AU - Shen,Chao-fengi, PY - 2005/11/30/pubmed PY - 2006/6/23/medline PY - 2005/11/30/entrez SP - 817 EP - 22 JF - Journal of environmental sciences (China) JO - J Environ Sci (China) VL - 17 IS - 5 N2 - Phytoremediation has long been recognized as a cost-effective method for the removal of polycyclic aromatic hydrocarbons (PAHs) from soil. A study was conducted to investigate the uptake and accumulation of PAHs in root and shoot of Lolium perenne L. Pot experiments were conducted with series of concentrations of 3.31-378.37 mg/kg for phenanthrene and those of 4.22-365.38 mg/kg for pyrene in a greenhouse. The results showed that both ryegrass roots and shoots did take up PAHs from spiked soils, and generally increased with increasing concentrations of PAH in soil. Bioconcentration factors (BCFs) of phenanthrene by shoots and roots were 0.24--4.25 and 0.17-2.12 for the same treatment. BCFs of pyrene by shoots were 0.20--1.5, except for 4.06 in 4.32 mg/kg treatment, much lower than BCFs of pyrene by roots (0.58--2.28). BCFs of phenanthrene and pyrene tended to decrease with increasing concentrations of phenanthrene and pyrene in soil. Direct uptake and accumulation of these compounds by Lolium perenne L. was very low compared with the other loss pathways, which meant that plant-promoted microbial biodegradation might be the main contribution to plant-enhanced removal of phenanthrene and pyrene in soil. However, the presence of Lolium perenne L. significantly enhanced the removal of phenanthrene and pyrene in spiked soil. At the end of 60 d experiment, the extractable concentrations of phenanthrene and pyrene were lower in planted soil than in non-planted soil, about 83.24%--91.98% of phenanthrene and 68.53%-84.10% of pyrene were removed from soils, respectively. The results indicated that the removal of PAHs in contaminated soils was a feasible approach by using Lolium perenne L. SN - 1001-0742 UR - https://www.unboundmedicine.com/medline/citation/16313010/Uptake_and_accumulation_of_phenanthrene_and_pyrene_in_spiked_soils_by_Ryegrass__Lolium_perenne_L___ DB - PRIME DP - Unbound Medicine ER -