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Biochelator Assisted Phytoremediation for Cadmium (Cd) Pollution in Paddy Field

Author

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  • Yangyang Wang

    (State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing 100012, China
    The Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541004, China
    These authors contributed equally to this work.)

  • Shaofeng Li

    (Department of Building Environmental Engineering, Shenzhen Polytechnic Institute, Shenzhen 518055, China
    These authors contributed equally to this work.)

  • Xiaoshu Wang

    (Department of Building Environmental Engineering, Shenzhen Polytechnic Institute, Shenzhen 518055, China)

  • Jianfeng Xu

    (State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing 100012, China)

  • Tongtong Li

    (State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing 100012, China)

  • Jia Zhu

    (Department of Building Environmental Engineering, Shenzhen Polytechnic Institute, Shenzhen 518055, China)

  • Ruyue Yang

    (State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing 100012, China)

  • Jinsheng Wang

    (Shenzhen BeiYu Environmental Technology Co., Ltd., Shenzhen 518063, China)

  • Ming Chang

    (State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing 100012, China)

  • Lei Wang

    (State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing 100012, China
    The Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541004, China
    Department of Building Environmental Engineering, Shenzhen Polytechnic Institute, Shenzhen 518055, China)

Abstract

To evaluate the efficacy of biochelators for phytoremediation of cadmium (Cd), effects of biochelators (humic acid, HA; polyaspartic acid, PASP; rhamnolipid, RLs) and synthetic chelator (sodium tripolyphosphate, STPP) on the growth, accumulation, and antioxidant index of Cd were investigated in Iris sibirica L. The results indicated that the addition of HA increased the dry weight of leaves and stems, and the addition of PASP, RLs, and STPP increased the growth of leaves but inhibited the growth of stems. The determination of Cd accumulation indicated that HA decreased the content of Cd in all tissues, while the addition of PASP, RLs, and STPP increased the accumulation of Cd in stems and roots. In addition, the determination of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) activities indicated that the treatment of PASP and RLs increased the activities of antioxidant enzymes, which might be beneficial to the resistance of Cd for Iris sibirica L. Overall, these results indicated that biochelators may improve the phytoremediation efficacy of Iris sibirica L. on Cd polluted paddy field. Among the tested chelators, PASP exhibited the best comprehensive efficacy and the highest commercial potential.

Suggested Citation

  • Yangyang Wang & Shaofeng Li & Xiaoshu Wang & Jianfeng Xu & Tongtong Li & Jia Zhu & Ruyue Yang & Jinsheng Wang & Ming Chang & Lei Wang, 2021. "Biochelator Assisted Phytoremediation for Cadmium (Cd) Pollution in Paddy Field," Sustainability, MDPI, vol. 13(21), pages 1-12, November.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:21:p:12170-:d:671999
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    Cited by:

    1. Arwa A. AL-Huqail & Mostafa A. Taher & Ivan Širić & Madhumita Goala & Bashir Adelodun & Kyung Sook Choi & Piyush Kumar & Vinod Kumar & Pankaj Kumar & Ebrahem M. Eid, 2023. "Bioremediation of Battery Scrap Waste Contaminated Soils Using Coco Grass ( Cyperus rotundus L.): A Prediction Modeling Study for Cadmium and Lead Phytoextraction," Agriculture, MDPI, vol. 13(7), pages 1-18, July.

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