Enhancement of Cd phytoextraction by hyperaccumulator Sedum alfredii using electrical field and organic amendments
文献类型: 外文期刊
第一作者: Xiao, Wendan
作者: Xiao, Wendan;Ye, Xuezhu;Zhang, Qi;Hu, Jing;Gao, Na;Li, Dan;Wang, Jingwen;Xu, Haizhou;Yao, Guihua
作者机构:
关键词: Cadmium;Phytoextraction;Electrokinetic remediation;Sedum alfredii;Organic amendment
期刊名称:ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH ( 影响因子:4.223; 五年影响因子:4.306 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: The combined use of organic amendment-assisted phytoextraction and electrokinetic remediation to decontaminate Cd-polluted soil was demonstrated in a laboratory-scale experiment. The plant species selected was the hyperaccumulator Sedum alfredii. Prior to the pot experiment, the loamy soil was treated with 15 g kg(-1) of pig manure compost, 10 g kg(-1) of humic acid, or 5 mmol kg(-1) of EDTA, and untreated soil without application of any amendment was the control. Two conditions were applied to each treatment: no voltage (without an electrical field) and a direct current (DC) electrical field (1 V cm(-1) with switching polarity every day). Results indicated that Cd concentrations in S. alfredii were significantly (p < 0.05) increased by application of the electrical field and soil amendments (pig manure compost, humic acid, and EDTA). By switching the polarity of the DC electrical field, significant pH variation from anode to cathode can be avoided, and no significant impact was observed on shoot biomass production. Electrical field application increased DTPA-extractable Cd in soils and the Cd accumulation in shoots by 6.06-15.64 and 24.53-52.31%, respectively. The addition of pig manure compost and humic acid enhanced shoot Cd accumulation by 1.54-to 1.92- and 1.38-to 1.64- fold because of their simultaneous enhancement of Cd concentration in shoots and biomass production. However, no enhancement of Cd accumulation was found in the EDTA treatment, which can be ascribed to the inhibition of plant growth caused by EDTA. In conclusion, pig manure compost or humic acid addition in combination with the application of a switched-polarity DC electrical field could significantly enhance Cd phytoextraction by hyperaccumulator S. alfredii.
分类号: X5`X
- 相关文献
作者其他论文 更多>>
-
A novel system with robust compatibility and stability for detecting Sugarcane yellow leaf virus based on CRISPR-Cas12a
作者:Wang, Ting;Li, Anzhen;Zhao, Hong;Guo, Jinlong;Tian, Helei;Wang, Jingwen;Que, Youxiong;Xu, Liping;Wu, Qibin;Que, Youxiong
关键词:Sugarcane yellow leaf virus; MIRA; CRISPR-Cas12a; sugarcane
-
Moderate elimination of mycotoxins in vegetable oil triggered by superoxide anion and singlet oxygen
作者:Yang, Xianglong;Cheng, Ling;Yu, Li;Qi, Xin;Zhang, Liangxiao;Zhang, Qi;Mao, Jin;Li, Peiwu;Zhang, Liangxiao;Zhang, Qi;Mao, Jin;Li, Peiwu
关键词:Mycotoxins; Reactive oxygen species; Photodegradation; Bi2WO6
-
African Swine Fever Virus I267L Is a Hemorrhage-Related Gene Based on Transcriptome Analysis
作者:Wen, Yuan;Duan, Xianghan;Ren, Jingjing;Zhang, Jing;Guan, Guiquan;Ru, Yi;Li, Dan;Zheng, Haixue;Wen, Yuan;Duan, Xianghan;Ren, Jingjing;Zhang, Jing;Guan, Guiquan;Ru, Yi;Li, Dan;Zheng, Haixue
关键词:African swine fever virus; I267L; hemorrhage; F3; tissue factor
-
Host-induced silencing of MpPar6 confers Myzus persicae resistance in transgenic rape plants
作者:Zhang, Qi;Zhan, Wenqin;Chang, Ling;Dong, Yi;Zhang, Jiang;Li, Chao;Zhang, Jiang
关键词:oilseed rape; pest control; aphid; double -stranded RNA; RNA interference
-
Demographic patterns of two related desert shrubs with overlapping distributions in response to past climate changes
作者:Yu, Qiushi;Yu, Qiushi;Hu, Jing;Hu, Xiaoke;Wang, Fanglin;Jiang, Shengxiu;Wang, Yuqi;Yu, Qiushi;Zhou, Yongfeng
关键词:population dynamics; regional expansion; multiple refugia; Nitraria tangutorum; Nitraria sphaerocarpa
-
Identification of XTH Family Genes and Expression Analysis of Endosperm Weakening in Lettuce (Lactuca sativa L.)
作者:Zhang, Qi;Zhang, Aixia;Bei, Jinlong;Chen, Bingxian;Yang, Le;Wei, Jinpeng;Xu, Zhenjiang;Wang, Xiaofeng
关键词:lettuce; XTH genes family; endosperm weakening; seed germination; gene expression; stress
-
Reverse design of haptens based on antigen spatial conformation to prepare anti-capsaicinoids&gingerols antibodies for monitoring of gutter cooking oil
作者:Nie, Kunying;Zhang, Jiali;Xu, Haitao;Ren, Keyun;Yu, Chunlei;Li, Falan;Yang, Qingqing;Zhang, Qi;Nie, Kunying;Zhang, Jiali;Xu, Haitao;Ren, Keyun;Yu, Chunlei;Li, Falan;Yang, Qingqing;Nie, Kunying;Zhang, Jiali;Xu, Haitao;Ren, Keyun;Yu, Chunlei;Li, Falan;Yang, Qingqing;Zhang, Qi;Zhang, Qi
关键词:Gutter cooking oil; Broad-spectrum monoclonal antibodies; Molecular docking; Virtual screening