IDEAS home Printed from https://ideas.repec.org/a/gam/jijerp/v15y2018i7p1330-d154248.html
   My bibliography  Save this article

Effect of Phosphate-Solubilizing Bacteria on the Mobility of Insoluble Cadmium and Metabolic Analysis

Author

Listed:
  • Ping Yang

    (School of Environment, Jinan University, Guangzhou 511443, China)

  • Xue-Fang Zhou

    (School of Environment, Jinan University, Guangzhou 511443, China)

  • Li-Li Wang

    (School of Environment, Jinan University, Guangzhou 511443, China)

  • Qu-Sheng Li

    (School of Environment, Jinan University, Guangzhou 511443, China)

  • Ting Zhou

    (School of Environment, Jinan University, Guangzhou 511443, China)

  • Yu-Kun Chen

    (School of Environment, Jinan University, Guangzhou 511443, China)

  • Zi-Yi Zhao

    (School of Environment, Jinan University, Guangzhou 511443, China)

  • Bao-Yan He

    (School of Environment, Jinan University, Guangzhou 511443, China)

Abstract

Phosphate-solubilizing bacteria (PSB) can promote plant growth by dissolving insoluble phosphate. Therefore, PSB may have the potential to improve the mobility of heavy metals in soils and enhance phytoextraction. This study isolated a few PSB strains that could dissolve CdCO 3 and solid Cd in soil. Two typical PSB, namely, high- and low-Cd-mobilizing PSB ( Pseudomonas fluorescens gim-3 and Bacillus cereus qh-35, respectively), were selected to analyze the metabolic profiles, metabolic pathways, and mechanisms of mobilization of insoluble Cd. A total of 34 metabolites secreted by the two PSB strains were identified. Gluconic acid was the main contributor to Cd dissolution (42.4%) in high-Cd-mobilizing PSB. By contrast, gluconic acid was not secreted in low-Cd-mobilizing PSB. Metabolic pathway analysis showed that gluconic acid was produced by the peripheral direct oxidation pathway. Hence, PSB with peripheral direct oxidation pathway were likely to have high-Cd-mobilizing capacity.

Suggested Citation

  • Ping Yang & Xue-Fang Zhou & Li-Li Wang & Qu-Sheng Li & Ting Zhou & Yu-Kun Chen & Zi-Yi Zhao & Bao-Yan He, 2018. "Effect of Phosphate-Solubilizing Bacteria on the Mobility of Insoluble Cadmium and Metabolic Analysis," IJERPH, MDPI, vol. 15(7), pages 1-12, June.
    • Handle: RePEc:gam:jijerp:v:15:y:2018:i:7:p:1330-:d:154248
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1660-4601/15/7/1330/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1660-4601/15/7/1330/
    Download Restriction: no
    ---><---

    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:15:y:2018:i:7:p:1330-:d:154248. 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.

    We have no bibliographic references for this item. You can help adding them by using 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.