IDEAS home Printed from https://ideas.repec.org/a/gam/jijerp/v17y2020i21p8143-d439856.html
   My bibliography  Save this article

Exogenous Glutathione Alleviation of Cd Toxicity in Italian Ryegrass ( Lolium multiflorum ) by Modulation of the Cd Absorption, Subcellular Distribution, and Chemical Form

Author

Listed:
  • Zhigang Fang

    (College of Life and Geographic Sciences, Kashi University, Kashi 844006, China
    College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China)

  • Zhaoyang Hu

    (College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China)

  • Xinqiang Yin

    (College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China)

  • Gang Song

    (College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China)

  • Qingsheng Cai

    (College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China)

Abstract

Subcellular fractions and the chemical forms of cadmium (Cd) reflect its level of toxicity to plants; however, these effects of exogenous glutathione (GSH) are poorly understood. We exposed two Italian ryegrass ( Lolium multiflorum ) cultivars (IdyII and Harukaze) to 50 µM Cd or 200 µM GSH to investigate the effect of GSH on the Cd uptake, subcellular compartments, and chemical forms. Cd significantly inhibited the plant growth, while GSH supplementation decreased this inhibition. The application of GSH significantly improved the Cd concentration in the roots but reduced that in the shoots and decreased the Cd translocation from root to shoot. The Cd concentration of the root in the cell wall was increased while the concentration in the soluble fraction was decreased when supplied with GSH. The inorganic form (80% ethanol for Cd extraction) in the roots was significantly reduced when treated with GSH. The Cd form extracted by 2% acetic acid (HAC) with low toxicity and immobility were greatly increased. In leaves, the application GSH decreased in any form of Cd form extracted. In conclusion, exogenous GSH decreased the translocation of Cd and alleviated Italian ryegrass Cd toxicity by accumulating more Cd in the root cell wall and immobilizing more Cd in lower toxicity fractions.

Suggested Citation

  • Zhigang Fang & Zhaoyang Hu & Xinqiang Yin & Gang Song & Qingsheng Cai, 2020. "Exogenous Glutathione Alleviation of Cd Toxicity in Italian Ryegrass ( Lolium multiflorum ) by Modulation of the Cd Absorption, Subcellular Distribution, and Chemical Form," IJERPH, MDPI, vol. 17(21), pages 1-13, November.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:21:p:8143-:d:439856
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1660-4601/17/21/8143/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1660-4601/17/21/8143/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Chun-Ming Lam & Kuei-San Chen & Hung-Yu Lai, 2019. "Chemical Forms and Health Risk of Cadmium in Water Spinach Grown in Contaminated Soil with An Increased Level of Phosphorus," IJERPH, MDPI, vol. 16(18), pages 1-9, September.
    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.

      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:17:y:2020:i:21:p:8143-:d:439856. 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.