IDEAS home Printed from https://ideas.repec.org/a/gam/jijerp/v20y2023i2p1065-d1027999.html
   My bibliography  Save this article

Mn Pretreatment Improves the Physiological Resistance and Root Exudation of Celosia argentea Linn. to Cadmium Stress

Author

Listed:
  • Shaohong You

    (College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
    Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China)

  • Zhenliang Deng

    (College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China)

  • Mouyixing Chen

    (College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China)

  • Yingyi Zheng

    (College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China)

  • Jiu Liu

    (Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China)

  • Pingping Jiang

    (Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China
    College of Earth Sciences, Guilin University of Technology, Guilin 541004, China
    Guangxi Key Laboratory of Exploration for Hidden Metallic Ore Deposits, Guilin University of Technology, Guilin 541004, China)

Abstract

Phytoextraction using Celosia argentea Linn. by Mn pretreatment can potentially decontaminate Cd-contaminated soils. However, the mechanism that accelerates the Cd bioaccumulation is still unknown. In order to study the effect and mechanism of Mn pretreatment on Cd bioaccumulation in C. argentea , the hydroponic experiments were set to determine the chlorophyll content, antioxidant enzyme activity, malondialdehyde content, and root exudation of C. argentea . The results indicated that after seven days of Mn pretreatment, both the biomass and Cd concentrations in plants increased compared to the control group. One of the mechanisms for this was the improvement in the physiological resistance of C. argentea following pretreatment with Mn. Compared with Cd stress alone, Mn pretreatment increased photosynthesis and reduced membrane lipid peroxidation. Meanwhile, the activities of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX) were significantly reduced in leaves of C. argentea after Mn pretreatment through the reduction in the production of reactive oxygen species. In addition, Mn promoted the exudation of organic acids in the roots of C. argentea . The contents of citric and malic acids increased by 55.3% and 26.4%, respectively, which may be another important reason for Mn pretreatment increasing Cd bioaccumulation in C. argentea. Therefore, the present work shows that the pretreatment of seedlings with Mn can provide a meaningful strategy to improve the remediation efficiency of Cd-contaminated soils by C. argentea .

Suggested Citation

  • Shaohong You & Zhenliang Deng & Mouyixing Chen & Yingyi Zheng & Jiu Liu & Pingping Jiang, 2023. "Mn Pretreatment Improves the Physiological Resistance and Root Exudation of Celosia argentea Linn. to Cadmium Stress," IJERPH, MDPI, vol. 20(2), pages 1-11, January.
    • Handle: RePEc:gam:jijerp:v:20:y:2023:i:2:p:1065-:d:1027999
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1660-4601/20/2/1065/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1660-4601/20/2/1065/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Ronghao Tao & Jingyi Hu & Chi Cao & Jing Zheng & Xiaotian Zhou & Hongxiang Hu & Youhua Ma & Wenling Ye & Zhongwen Ma & Hongjuan Lu, 2022. "Effect of LMWOAs on Maize Remediation of Cadmium and Plumbum Pollution in Farmland," Sustainability, MDPI, vol. 14(21), pages 1-16, November.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Sheng Wang & Qi Liu & Zhizong Liu & Jie He & Li Bao & Jilai Zhang & Naiming Zhang, 2023. "Simulation Study on Risk and Influencing Factors of Cadmium Loss in Contaminated Soil," Sustainability, MDPI, vol. 15(2), pages 1-15, January.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jijerp:v:20:y:2023:i:2:p:1065-:d:1027999. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.