Nitrogen transport in plants,with an emphasis on the regulation of fluxes to match plant demand |
| |
Authors: | Anthony D M Glass Dev T Brito Brent N Kaiser Herbert J Kronzucker Anshuman Kumar Mamaru Okamoto S R Rawat Mohammed Y Siddiqi Salim M Silim Joseph J Vidmar Degen Zhuo |
| |
Institution: | 1. Department of Botany, University of British Columbia, #3529-6270 University Boulevard, Vancouver, B. C. Canada V6T 1Z4;2. Department of Plant Sciences, University of Western Ontario, Canada NGA 5B7 |
| |
Abstract: | Physiological methods, especially the use of isotopes of N, have allowed for the detailed characterizations of the several putative transport systems for nitrate and ammonium in roots of higher plants. In the last decade, the cloning of genes that appear to encode both high- and low-affinity transporters represent major advances, as well as substantiating the inferences based on earlier physiological methods. Nevertheless, the unexpected plethora of genes that have been identified now presents even greater challenges, to resolve their individual functions and to attempt to place these functions in a whole plant/environmental context. |
| |
Keywords: | nitrate ammonium transporter uptake demand |
|
|