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The Endodermis Is the Major Control Point for Radial Transport of Humic Substances into the Vascular System of Plants

  • N. A. Kulikova
  • D. P. Abroskin
  • A. S. Beer
  • G. A. Badun
  • M. G. Chernysheva
  • V. I. Korobkov
  • I. V. Perminova
Conference paper

Abstract

In order to understand humic substance (HS) uptake by plants and its entrance into the plant vascular system, a microautoradiography approach using tritium-labeled HS was applied. Wheat seedlings were used as test plants. The data obtained clearly demonstrated preferential radial transport of HS by the apoplastic pathway. Epidermal and cortex cells did not remove significant proportions of humic substances, and the endodermis was shown to be the major control point for their radial transport.

Keywords

Interaction with plants Vascular system Autoradiography Tritium Endodermis Apoplastic way 

References

  1. Badun, G.A., M.G. Chernysheva, Z.A. Tyasto, N.A. Kulikova, A.V. Kudryavtsev, and I.V. Perminova. 2010. A new technique for tritium labeling of humic substances. Radiochimica Acta 98: 161–166.CrossRefGoogle Scholar
  2. Kulikova, N.A., I.V. Perminova, G.A. Badun, M.G. Chernysheva, O.V. Koroleva, and E.A. Tsvetkova. 2010. Estimation of uptake of humic substances from different sources by Escherichia coli cells under optimum and salt stress conditions by use of tritium-labeled humic materials. Applied and Environmental Microbiology 76: 6223–6230.CrossRefGoogle Scholar

Copyright information

© Zhejiang University Press and Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • N. A. Kulikova
    • 1
    • 2
  • D. P. Abroskin
    • 1
  • A. S. Beer
    • 3
  • G. A. Badun
    • 4
  • M. G. Chernysheva
    • 4
  • V. I. Korobkov
    • 4
  • I. V. Perminova
    • 4
  1. 1.Department of Soil ScienceLomonosov Moscow State UniversityMoscowRussia
  2. 2.Bach Institute of Biochemistry of Russian Academy of SciencesMoscowRussia
  3. 3.Department of BiologyLomonosov Moscow State UniversityMoscowRussia
  4. 4.Department of ChemistryLomonosov Moscow State UniversityMoscowRussia

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