Summary
One part of a split root system of wheat seedlings received full nutrient solution with 15N-nitrate, the other received an identical solution with unlabelled nitrate. Appearance of labelled amino compounds was measured in the xylem sap exuding from roots not supplied directly with 15N-nitrate after removal of the 15N-nitrate-fed roots. This material indicates cycling of nitrogen from the shoots and through the roots. About 60 per cent of the nitrogen in the xylem appears to be cycling in this way.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Clarkson D T 1986 In Fundamental, Ecological and Agricultural Aspects of Nitrogen Metabolism in Higher Plants. Eds. M Lambers, J J Neeteson and I Stulen. Martinus Nijhoff Publishers, Dordrecht, pp 3–27.
Cooper H D, Clarkson D T, Ponting H E and Loughman B C 1985 This Symposium.
Keltjens W G, Nieuwenhuis J W and Nelemans J A 1985 This Symposium.
Kirkman M A 1974 J Chromat 97, 175–191.
Lambers H 1985 Proc. SEB symposium: Root structure and function.
Lambers H, Simpson R J, Beilharz V C and Dalling M J 1982 Physiol. Plant. 56, 421–429.
Layzell D B, Pate J S, Atkins C A and Canvin D T 1981 Plant Physiol. 67, 30–36.
Marshall R B and Whiteway J N 1985 Analyst. 110, 867–871.
Oghoghorie C G O and Pate J S 1972 Planta 103, 35–49.
Simpson R J, Lambers H and Dalling M J 1982 Physiol. Plant. 56, 11–17.
Pate J S, Layzell D B and McNeil D L 1979 Plant Physiol. 63, 730–737.
Wallsgrove R M, Keys A J, Lea P J and Miflin B J 1983 Plant Cell Environ. 6, 301–309.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1986 Martinus Nijhoff Publishers, Dordrecht/Boston/Lancaster
About this chapter
Cite this chapter
Cooper, H.D., Clarkson, D.T., Johnston, M.G., Whiteway, J.N., Loughman, B.C. (1986). Cycling of amino-nitrogen between shoots and roots in wheat seedlings. In: Lambers, H., Neeteson, J.J., Stulen, I. (eds) Fundamental, Ecological and Agricultural Aspects of Nitrogen Metabolism in Higher Plants. Developments in Plant and Soil Sciences, vol 19. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4356-8_11
Download citation
DOI: https://doi.org/10.1007/978-94-009-4356-8_11
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8437-6
Online ISBN: 978-94-009-4356-8
eBook Packages: Springer Book Archive