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Determining soil enzyme activities for the assessment of fungi and citric acid-assisted phytoextraction under cadmium and lead contamination.
Environ Sci Pollut Res Int. 2015 Dec; 22(24):19860-9.ES

Abstract

Microorganism or chelate-assisted phytoextraction is an effective remediation tool for heavy metal polluted soil, but investigations into its impact on soil microbial activity are rarely reported. Consequently, cadmium (Cd)- and lead (Pb)-resistant fungi and citric acid (CA) were introduced to enhance phytoextraction by Solanum nigrum L. under varied Cd and Pb pollution levels in a greenhouse pot experiment. We then determined accumulation of Cd and Pb in S. nigrum and the soil enzyme activities of dehydrogenase, phosphatase, urease, catalase, sucrase, and amylase. Detrended canonical correspondence analysis (DCCA) was applied to assess the interactions between remediation strategies and soil enzyme activities. Results indicated that the addition of fungi, CA, or their combination enhanced the root biomass of S. nigrum, especially at the high-pollution level. The combined treatment of CA and fungi enhanced accumulation of Cd about 22-47 % and of Pb about 13-105 % in S. nigrum compared with the phytoextraction alone. However, S. nigrum was not shown to be a hyperaccumulator for Pb. Most enzyme activities were enhanced after remediation. The DCCA ordination graph showed increasing enzyme activity improvement by remediation in the order of phosphatase, amylase, catalase, dehydrogenase, and urease. Responses of soil enzyme activities were similar for both the addition of fungi and that of CA. In summary, results suggest that fungi and CA-assisted phytoextraction is a promising approach to restoring heavy metal polluted soil.

Authors+Show Affiliations

School of Agriculture and Biology, Shanghai Jiao tong University, Shanghai, 200240, China. Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai, 200240, China. Bor. S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai, 200240, China.School of Agriculture and Biology, Shanghai Jiao tong University, Shanghai, 200240, China. Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai, 200240, China.School of Agriculture and Biology, Shanghai Jiao tong University, Shanghai, 200240, China. Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai, 200240, China. Bor. S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai, 200240, China.Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China.School of Agriculture and Biology, Shanghai Jiao tong University, Shanghai, 200240, China. peizhousjtu@163.com. Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai, 200240, China. peizhousjtu@163.com.School of Agriculture and Biology, Shanghai Jiao tong University, Shanghai, 200240, China. Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai, 200240, China.School of Agriculture and Biology, Shanghai Jiao tong University, Shanghai, 200240, China. Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai, 200240, China.

Pub Type(s)

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

Language

eng

PubMed ID

26286803

Citation

Mao, Liang, et al. "Determining Soil Enzyme Activities for the Assessment of Fungi and Citric Acid-assisted Phytoextraction Under Cadmium and Lead Contamination." Environmental Science and Pollution Research International, vol. 22, no. 24, 2015, pp. 19860-9.
Mao L, Tang D, Feng H, et al. Determining soil enzyme activities for the assessment of fungi and citric acid-assisted phytoextraction under cadmium and lead contamination. Environ Sci Pollut Res Int. 2015;22(24):19860-9.
Mao, L., Tang, D., Feng, H., Gao, Y., Zhou, P., Xu, L., & Wang, L. (2015). Determining soil enzyme activities for the assessment of fungi and citric acid-assisted phytoextraction under cadmium and lead contamination. Environmental Science and Pollution Research International, 22(24), 19860-9. https://doi.org/10.1007/s11356-015-5220-1
Mao L, et al. Determining Soil Enzyme Activities for the Assessment of Fungi and Citric Acid-assisted Phytoextraction Under Cadmium and Lead Contamination. Environ Sci Pollut Res Int. 2015;22(24):19860-9. PubMed PMID: 26286803.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Determining soil enzyme activities for the assessment of fungi and citric acid-assisted phytoextraction under cadmium and lead contamination. AU - Mao,Liang, AU - Tang,Dong, AU - Feng,Haiwei, AU - Gao,Yang, AU - Zhou,Pei, AU - Xu,Lurong, AU - Wang,Lumei, Y1 - 2015/08/20/ PY - 2015/06/04/received PY - 2015/08/10/accepted PY - 2015/8/20/entrez PY - 2015/8/20/pubmed PY - 2016/7/28/medline KW - Cadmium KW - Citric acid KW - Fungi KW - Lead KW - Soil enzymes KW - Solanum nigrum L SP - 19860 EP - 9 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 22 IS - 24 N2 - Microorganism or chelate-assisted phytoextraction is an effective remediation tool for heavy metal polluted soil, but investigations into its impact on soil microbial activity are rarely reported. Consequently, cadmium (Cd)- and lead (Pb)-resistant fungi and citric acid (CA) were introduced to enhance phytoextraction by Solanum nigrum L. under varied Cd and Pb pollution levels in a greenhouse pot experiment. We then determined accumulation of Cd and Pb in S. nigrum and the soil enzyme activities of dehydrogenase, phosphatase, urease, catalase, sucrase, and amylase. Detrended canonical correspondence analysis (DCCA) was applied to assess the interactions between remediation strategies and soil enzyme activities. Results indicated that the addition of fungi, CA, or their combination enhanced the root biomass of S. nigrum, especially at the high-pollution level. The combined treatment of CA and fungi enhanced accumulation of Cd about 22-47 % and of Pb about 13-105 % in S. nigrum compared with the phytoextraction alone. However, S. nigrum was not shown to be a hyperaccumulator for Pb. Most enzyme activities were enhanced after remediation. The DCCA ordination graph showed increasing enzyme activity improvement by remediation in the order of phosphatase, amylase, catalase, dehydrogenase, and urease. Responses of soil enzyme activities were similar for both the addition of fungi and that of CA. In summary, results suggest that fungi and CA-assisted phytoextraction is a promising approach to restoring heavy metal polluted soil. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/26286803/Determining_soil_enzyme_activities_for_the_assessment_of_fungi_and_citric_acid_assisted_phytoextraction_under_cadmium_and_lead_contamination_ L2 - https://dx.doi.org/10.1007/s11356-015-5220-1 DB - PRIME DP - Unbound Medicine ER -