Current Microbiology

, Volume 66, Issue 5, pp 481–486 | Cite as

Paenibacillus polymyxa Rhizobacteria and Their Synthesized Exoglycans in Interaction with Wheat Roots: Colonization and Root Hair Deformation

  • Irina V. YegorenkovaEmail author
  • Kristina V. Tregubova
  • Vladimir V. Ignatov


We examined the ability of several Paenibacillus polymyxa strains to colonize wheat roots and the ability of P. polymyxa exoglycans to induce root hair deformation. For the first time, exopolysaccharides isolated from P. polymyxa were found to produce, with different intensities, various morphological changes in the root hairs of wheat seedlings, which are some of the earliest responses of plants to bacteria in the surrounding milieu. P. polymyxa 1465, giving the highest exopolysaccharide yield and the highest viscosity of aqueous exopolysaccharide solutions, was best able to colonize wheat seedling roots, and its exopolysaccharide proved to be the best in producing root hair deformation. It is suggested that P. polymyxa exoglycans have an active role in the establishment of plant–microbe associations.


Root Hair Wheat Seedling Azospirillum Wheat Root Paenibacillus Polymyxa 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



Our thanks go to Mr. Dmitry N. Tychinin (this institute) for translating the original manuscript into English.


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Irina V. Yegorenkova
    • 1
    Email author
  • Kristina V. Tregubova
    • 1
  • Vladimir V. Ignatov
    • 1
  1. 1.Laboratory of Biochemistry, Institute of Biochemistry and Physiology of Plants and MicroorganismsRussian Academy of Sciences (IBPPM RAS)SaratovRussian Federation

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