Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/83399
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Roots, nitrogen transformations, and ecosystem services |
Author: | Jackson, L. Burger, M. Cavagnaro, T. |
Citation: | Plant Biology, 2008; 59(1):341-363 |
Publisher: | Georg Thieme Verlag |
Issue Date: | 2008 |
ISSN: | 1435-8603 1545-2123 |
Statement of Responsibility: | Louise E. Jackson, Martin Burger, and Timothy R. Cavagnaro |
Abstract: | This review considers some of the mechanistic processes that involve roots in the soil nitrogen (N) cycle, and their implications for the ecological functions that retain N within ecosystems: 1) root signaling pathways for N transport systems, and feedback inhibition, especially for NO3− uptake; 2) dependence on the mycorrhizal and Rhizobium/legume symbioses and their tradeoffs for N acquisition; 3) soil factors that influence the supply of NH4+ and NO3− to roots and soil microbes; and 4) rhizosphere processes that increase N cycling and retention, such as priming effects and interactions with the soil food web. By integrating information on these plant-microbe-soil N processes across scales and disciplinary boundaries, we propose ideas for better manipulating ecological functions and processes by which the environment provides for human needs, i.e., ecosystem services. Emphasis is placed on agricultural systems, effects of N deposition in natural ecosystems, and ecosystem responses to elevated CO2 concentrations. This shows the need for multiscale approaches to increase human dependence on a biologically based N supply. |
Keywords: | ammonium arbuscular mycorrhizae elevated carbon dioxide concentration nitrate nitrogen cycle rhizosphere |
Rights: | Copyright © 2008 by Annual Reviews. All rights reserved |
DOI: | 10.1146/annurev.arplant.59.032607.092932 |
Published version: | http://dx.doi.org/10.1146/annurev.arplant.59.032607.092932 |
Appears in Collections: | Aurora harvest 4 Earth and Environmental Sciences publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.