IDEAS home Printed from https://ideas.repec.org/a/caa/jnlpse/v66y2020i5id581-2019-pse.html
   My bibliography  Save this article

Indole-3-acetic acid synthesizing chromium-resistant bacteria can mitigate chromium toxicity in Helianthus annuus L

Author

Listed:
  • Hadia-E-Fatima

    (Department of Botany, University of the Punjab, Lahore, Pakistan)

  • Ambreen Ahmed

Abstract

Use of microorganisms as heavy metal remediators is an effective approach for chromium reduction in plants. Chromium carcinogenicity (Cr6+) beyond the permissible levels elicits environmental and health problems. To reduce chromium toxicity along with the plant growth improvement, a cost-effective and eco-friendly remediation approach is necessary. In the current study, chromium-resistant bacterial species were evaluated for growth improvement of sunflower. Three auxin-producing bacteria able to tolerate hexavalent chromium, i.e., Sporosarcina saromensis (EI) and two species of Bacillus cereus (AR and 3a) were selected for the proposed study. Growth studies along with auxin synthesis potential of bacterial isolates with and without chromium were conducted. Results revealed a 188% enhancement in plant height under laboratory-grown plants with B. cereus (AR) under 500 mg/L chromium stress (Cr6+). B. cereus (3a) also showed an 81% increase in leaf number with 400 mg/L chromium stress in laboratory-grown plants. Similarly, 73% increment in the amount of auxin was reported in the case of inoculation with S. saromensis isolate (EI) over respective control treatment. These improvements provide an excellent means of reducing chromium (Cr6+) in the contaminated soils naturally by stimulating plant growth along with bioremediation potential.

Suggested Citation

  • Hadia-E-Fatima & Ambreen Ahmed, 2020. "Indole-3-acetic acid synthesizing chromium-resistant bacteria can mitigate chromium toxicity in Helianthus annuus L," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 66(5), pages 216-221.
    • Handle: RePEc:caa:jnlpse:v:66:y:2020:i:5:id:581-2019-pse
    DOI: 10.17221/581/2019-PSE
    as

    Download full text from publisher

    File URL: http://pse.agriculturejournals.cz/doi/10.17221/581/2019-PSE.html
    Download Restriction: free of charge
    File URL: http://pse.agriculturejournals.cz/doi/10.17221/581/2019-PSE.pdf
    Download Restriction: free of charge
    File URL: https://libkey.io/10.17221/581/2019-PSE?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    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:caa:jnlpse:v:66:y:2020:i:5:id:581-2019-pse. 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: Ivo Andrle (email available below). General contact details of provider: https://www.cazv.cz/en/home/ .

    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.