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2013 | OriginalPaper | Chapter

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

Authors : N. A. Kulikova, D. P. Abroskin, A. S. Beer, G. A. Badun, M. G. Chernysheva, V. I. Korobkov, I. V. Perminova

Published in: Functions of Natural Organic Matter in Changing Environment

Publisher: Springer Netherlands

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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.

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Literature
go back to reference 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.CrossRef 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.CrossRef
go back to reference 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.CrossRef 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.CrossRef
Metadata
Title
The Endodermis Is the Major Control Point for Radial Transport of Humic Substances into the Vascular System of Plants
Authors
N. A. Kulikova
D. P. Abroskin
A. S. Beer
G. A. Badun
M. G. Chernysheva
V. I. Korobkov
I. V. Perminova
Copyright Year
2013
Publisher
Springer Netherlands
DOI
https://doi.org/10.1007/978-94-007-5634-2_159