title: Reducing the bioavailability of cadmium in contaminated soil by dithiocarbamate chitosan as a new remediation.
abstract: Dithiocarbamate chitosan (DTC-CTS) was used as a new amendment for remediation of cadmium (Cd)-contaminated soils to reduce the Cd bioavailability. Arabidopsis thaliana was chosen as a model plant to evaluate its efficiency. It was found that DTC-CTS could effectively improve the growth of A. thaliana. The amount of Cd up-taken by A. thaliana could be decreased by as much as 50% compared with that grown in untreated Cd-contaminated soil samples. The chlorophyll content and the aerial biomass of Arabidopsis also increased substantially and eventually returned to a level comparable to plants grown in non-contaminated soils, with the addition of DTC-CTS. These findings suggested that DTC-CTS amendment could be effective in immobilizing Cd and mitigating its accumulation in plants grown in Cd-contaminated soils, with potential application as an in situ remediation of Cd-polluted soils.
authors: Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China.
authors: Zheng
authors: Z
authors: Yin
authors: Jingjing
authors: J
authors: Cao
authors: Zhen
authors: Z
authors: Li
authors: Dong
authors: D
authors: Qiu
mesh_terms: D001673:Biodegradation, Environmental; D001682:Biological Availability; D018533:Biomass; D002104:Cadmium / Q000032:analysis / Q000378:metabolism*; D048271:Chitosan / Q000378:metabolism*; D004787:Environmental Pollution; D010944:Plants; D012987:Soil; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000032:analysis / Q000378:metabolism*
chemical_list: D012987:Soil; D012989:Soil Pollutants; D002104:Cadmium; D048271:Chitosan
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