IDEAS home Printed from https://ideas.repec.org/a/caa/jnlpse/v52y2006i3id3355-pse.html
   My bibliography  Save this article

Paranodules and colonization of wheat roots by phytohormone producing bacteria in soil

Author

Listed:
  • N. Narula

    (Instituteof Soil Science and Plant Nutrition, Faculty of Agriculture, Martin Luther University, Halle-Wittenberg, Halle, Germany)

  • A. Deubel

    (Department of Microbiology, CCS Haryana Agriculture University, Hisar, India)

  • W. Gans

    (Department of Microbiology, CCS Haryana Agriculture University, Hisar, India)

  • R.K. Behl

    (Instituteof Soil Science and Plant Nutrition, Faculty of Agriculture, Martin Luther University, Halle-Wittenberg, Halle, Germany)

  • W. Merbach

    (Department of Microbiology, CCS Haryana Agriculture University, Hisar, India)

Abstract

Soil bacteria belonging to the genus Azotobacter, Pantoea and some unidentified soil isolates were tested in vitro for phytohormone production under laboratory and soil conditions. The German wheat variety Munk was inoculated by several soil bacteria with exogenously applied hormones (IAA, 2,4-D) and a flavonoid(naringenin) with a half of the amount of recommended doses of fertilizers under greenhouse conditions. Most of the soil bacteria tested were able to produce indole acetic acid (IAA), and stimulated a lateral root development and colonization by the addition of 2,4-D and IAA. A formation of paranodules on roots as a result of crack entry invasion was observed with 2,4-D as well as with IAA. We were able to reisolate the organism from the paranodules and could establish the same results. Analyses for root exudates and in vitro phytohormone production by various bacterial isolates were also carried out, revealing that 2,4-D can be replaced either by high IAA producing bacteria or by exogenous application of IAA. Bacterial survival in the rhizosphere as well as the root and shoot weight of wheat plants were positively affected also by the addition of IAA, 2,4-D and naringenin.

Suggested Citation

  • N. Narula & A. Deubel & W. Gans & R.K. Behl & W. Merbach, 2006. "Paranodules and colonization of wheat roots by phytohormone producing bacteria in soil," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 52(3), pages 119-129.
  • Handle: RePEc:caa:jnlpse:v:52:y:2006:i:3:id:3355-pse
    DOI: 10.17221/3355-PSE
    as

    Download full text from publisher

    File URL: http://pse.agriculturejournals.cz/doi/10.17221/3355-PSE.html
    Download Restriction: free of charge

    File URL: http://pse.agriculturejournals.cz/doi/10.17221/3355-PSE.pdf
    Download Restriction: free of charge

    File URL: https://libkey.io/10.17221/3355-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.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. N. Narula & R. Remus & A. Deubel & A. Granse & S.S. Dudeja & R.K. Behl & W. Merbach, 2007. "Comparison of the effectiveness of wheat roots colonization by Azotobacter chroococcum and Pantoea agglomerans using serological techniques," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 53(4), pages 167-176.

    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:52:y:2006:i:3:id:3355-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.