Summary
When roots of five day-old maize seedlings were exposed to 15N-nitrate, a constant (25–29%) proportion of the reduced 15N derived from the entering 15N-nitrate accumulated as insoluble 15N nitrogen. Constancy was established by two hours and lasted through 12 hours at ambient 15N-nitrate concentrations of 0.05 mM to 20.0 mM. Even when little 15N nitrate had been reduced (> 2μmoles), there was a linear relationship between accumulation of insoluble 15N (but not accumulation or translocation of soluble reduced 15N) and total reduced 15N. It is proposed that protein synthesis from the entering nitrate occurs in close association with nitrate reduction.
Paper No. 9764 of the Journal Series of the North Carolina Agricultural Research Service, Raleigh, NC, 27695-7619, USA. This research was supported by Grant No. PCM-8118661 from the National Science Foundation.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
Morgan M A, Jackson W A and Volk R J 1985 J. Exp. Bot. 36, 859–869.
Morgan M A, Volk R J and Jackson W A 1985 Plant Physiol. 77, 718–721.
Morgan M A, Jackson W A and Volk R J 1985 Plant Sc. 38, 185–191.
Pace G M, MacKown C T and Volk R J 1982 Plant Physiol. 69, 32–36.
Pan W L, Jackson W A and Moll R H 1985 Plant Physiol. 77, 560–566.
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
Morgan, M.A., Jackson, W.A., Pan, W.L., Volk, R.J. (1986). Partitioning of reduced nitrogen derived from exogenous nitrate in maize roots: Initial priority for protein synthesis. 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_26
Download citation
DOI: https://doi.org/10.1007/978-94-009-4356-8_26
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8437-6
Online ISBN: 978-94-009-4356-8
eBook Packages: Springer Book Archive