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Chemical-assisted phytoremediation of CD-PAHs contaminated soils using Solanum nigrum L.
Int J Phytoremediation. 2011 Sep; 13(8):818-33.IJ

Abstract

A well-characterized cadmium (Cd) hyperaccumulating plant Solanum nigrum was grown in Cd and polycyclic aromatic hydrocarbons (PAHs) co-contaminated soil that was repeatedly amended with chemicals, including EDTA, cysteine (CY), salicylic acid (Sa), and Tween 80 (TW80), to test individual and combined treatment effects on phytoremediation of Cd-PAHs contaminated soils. Plant growth was negatively affected by exogenous chemicals except for EDTA. S. nigrum could accumulate Cd in tissues without assistant chemicals, while there was no visible effect on the degradation of PAHs. Cysteine had significant effects on phytoextraction of Cd and the highest metal extraction ratio (1.27%) was observed in 0.9 mmol/kg CY treatment. Both salicylic acid and Tween 80 had stimulative effects on the degradation of PAHs and there was the maximal degradation rate (52.6%) of total PAHs while 0.9 mmol/kg Sa was applied. Furthermore, the combined treatment T(0.1EDTA+0.9CY+0.5TW80) and T(0.5EDTA+0.9CY+03Sa) could not only increase the accumulation of Cd in plant tissues, but also promote the degradation of PAHs. These results indicated that S. nigrum might be effective in phytoextracting Cd and enhancing the biodegradation of PAHs in the co-contaminated soils with assistant chemicals.

Authors+Show Affiliations

Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21972521

Citation

Yang, Chuanjie, et al. "Chemical-assisted Phytoremediation of CD-PAHs Contaminated Soils Using Solanum Nigrum L." International Journal of Phytoremediation, vol. 13, no. 8, 2011, pp. 818-33.
Yang C, Zhou Q, Wei S, et al. Chemical-assisted phytoremediation of CD-PAHs contaminated soils using Solanum nigrum L. Int J Phytoremediation. 2011;13(8):818-33.
Yang, C., Zhou, Q., Wei, S., Hu, Y., & Bao, Y. (2011). Chemical-assisted phytoremediation of CD-PAHs contaminated soils using Solanum nigrum L. International Journal of Phytoremediation, 13(8), 818-33.
Yang C, et al. Chemical-assisted Phytoremediation of CD-PAHs Contaminated Soils Using Solanum Nigrum L. Int J Phytoremediation. 2011;13(8):818-33. PubMed PMID: 21972521.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Chemical-assisted phytoremediation of CD-PAHs contaminated soils using Solanum nigrum L. AU - Yang,Chuanjie, AU - Zhou,Qixing, AU - Wei,Shuhe, AU - Hu,Yahu, AU - Bao,Yanyu, PY - 2011/10/7/entrez PY - 2011/10/7/pubmed PY - 2012/8/10/medline SP - 818 EP - 33 JF - International journal of phytoremediation JO - Int J Phytoremediation VL - 13 IS - 8 N2 - A well-characterized cadmium (Cd) hyperaccumulating plant Solanum nigrum was grown in Cd and polycyclic aromatic hydrocarbons (PAHs) co-contaminated soil that was repeatedly amended with chemicals, including EDTA, cysteine (CY), salicylic acid (Sa), and Tween 80 (TW80), to test individual and combined treatment effects on phytoremediation of Cd-PAHs contaminated soils. Plant growth was negatively affected by exogenous chemicals except for EDTA. S. nigrum could accumulate Cd in tissues without assistant chemicals, while there was no visible effect on the degradation of PAHs. Cysteine had significant effects on phytoextraction of Cd and the highest metal extraction ratio (1.27%) was observed in 0.9 mmol/kg CY treatment. Both salicylic acid and Tween 80 had stimulative effects on the degradation of PAHs and there was the maximal degradation rate (52.6%) of total PAHs while 0.9 mmol/kg Sa was applied. Furthermore, the combined treatment T(0.1EDTA+0.9CY+0.5TW80) and T(0.5EDTA+0.9CY+03Sa) could not only increase the accumulation of Cd in plant tissues, but also promote the degradation of PAHs. These results indicated that S. nigrum might be effective in phytoextracting Cd and enhancing the biodegradation of PAHs in the co-contaminated soils with assistant chemicals. SN - 1522-6514 UR - https://www.unboundmedicine.com/medline/citation/21972521/Chemical_assisted_phytoremediation_of_CD_PAHs_contaminated_soils_using_Solanum_nigrum_L_ L2 - https://www.tandfonline.com/doi/full/10.1080/15226514.2010.532179 DB - PRIME DP - Unbound Medicine ER -