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Influence of humic acids on the accumulation of copper and cadmium in Vallisneria spiralis L. from sediment
Wang, Qian; Li, Zhu; Cheng, Shuiping; Wu, Zhenbin; Cheng, SP, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2010
Source PublicationENVIRONMENTAL EARTH SCIENCES
ISSN1866-6280
Volume61Issue:6Pages:1207-1213
AbstractPhysiological responses and metal accumulation in Vallisneria spiralis L. exposed to copper and cadmium contaminated sediment were examined at different metal concentrations and the influence of humic acids on copper and cadmium accumulation was also studied. The plants of V. spiralis accumulated high amount of copper and cadmium. The maximum accumulation of 396 and 114 mg kg(-1) DW copper were found in the roots and shoots, respectively, at 614 mg kg(-1) DW after 21 days' copper exposure; they were 63.8 and 48.0 mg kg(-1) DW for cadmium at 88.69 mg kg(-1) DW. The plants showed decrease in chlorophyll content with the increasing concentration of copper/cadmium in sediment. With addition of humic acids from 3.09 to 7.89 g kg(-1) DW, both copper and cadmium accumulation in V. spiralis were significantly inhibited (p < 0.01). The cadmium concentrations of roots and shoots of plant decreased 26.4-50.3 and 14.3-33.0% under cadmium treatments, respectively; copper accumulation decreased much more with 44.0-77.0 and 35.0-62.7%, respectively. It was concluded that V. spiralis appeared to be an ideal candidate for the phytoremediation of copper and cadmium polluted sediments, and humic acids had an important role in regulating copper and cadmium bioavailability and toxicity in sediments.
KeywordPhytoremediation Heavy Metals In Situ Submerged Macrophyte Humic Acids
Department[Wang, Qian; Li, Zhu; Cheng, Shuiping; Wu, Zhenbin] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Wang, Qian; Li, Zhu] Chinese Acad Sci, Grad Sch, Beijing 10039, Peoples R China
Subject AreaEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
Funding OrganizationNational Major Program of Science and Technology [2008ZX07316-004]; Chinese Academy of Sciences [KZCX2-YW-426] ; National Major Program of Science and Technology [2008ZX07316-004]; Chinese Academy of Sciences [KZCX2-YW-426] ; National Major Program of Science and Technology [2008ZX07316-004]; Chinese Academy of Sciences [KZCX2-YW-426] ; National Major Program of Science and Technology [2008ZX07316-004]; Chinese Academy of Sciences [KZCX2-YW-426]
Indexed BySCI
Language英语
WOS IDWOS:000281668400011
Funding OrganizationNational Major Program of Science and Technology [2008ZX07316-004]; Chinese Academy of Sciences [KZCX2-YW-426] ; National Major Program of Science and Technology [2008ZX07316-004]; Chinese Academy of Sciences [KZCX2-YW-426] ; National Major Program of Science and Technology [2008ZX07316-004]; Chinese Academy of Sciences [KZCX2-YW-426] ; National Major Program of Science and Technology [2008ZX07316-004]; Chinese Academy of Sciences [KZCX2-YW-426]
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/13683
Collection水环境工程研究中心_期刊论文
Corresponding AuthorCheng, SP, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Wang, Qian,Li, Zhu,Cheng, Shuiping,et al. Influence of humic acids on the accumulation of copper and cadmium in Vallisneria spiralis L. from sediment[J]. ENVIRONMENTAL EARTH SCIENCES,2010,61(6):1207-1213.
APA Wang, Qian,Li, Zhu,Cheng, Shuiping,Wu, Zhenbin,&Cheng, SP, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(2010).Influence of humic acids on the accumulation of copper and cadmium in Vallisneria spiralis L. from sediment.ENVIRONMENTAL EARTH SCIENCES,61(6),1207-1213.
MLA Wang, Qian,et al."Influence of humic acids on the accumulation of copper and cadmium in Vallisneria spiralis L. from sediment".ENVIRONMENTAL EARTH SCIENCES 61.6(2010):1207-1213.
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