The carbon bonus of organic nitrogen enhances nitrogen use efficiency of plants

13270 16 63882 3 173931 document 63882 The carbon bonus of organic nitrogen enhances nitrogen use efficiency of plants.pdf application/pdf 1a7cedc7728053878b0dbdabc84a0648 MD5 616677 2016-07-04 12:21:35 https://pure.iiasa.ac.at/id/eprint/13270/7/The%20carbon%20bonus%20of%20organic%20nitrogen%20enhances%20nitrogen%20use%20efficiency%20of%20plants.pdf 13270 7 1 application/pdf text en public cc_by

The carbon bonus of organic nitrogen enhances nitrogen use efficiency of plants.pdf

published 63883 2 173937 document 63883 lightbox.jpg image/png 43285bede2f58ecb9053b3773155d802 MD5 67632 2016-07-04 12:31:50 https://pure.iiasa.ac.at/id/eprint/13270/8/lightbox.jpg 13270 8 8 image/png other Thumbnails conversion from text to thumbnail_lightbox en public

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/63882 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/63882 http://eprints.org/relation/isIndexCodesVersionOf https://pure.iiasa.ac.at/id/document/63882 archive 5 disk0/00/01/32/70 2016-05-31 07:39:12 2021-08-27 17:27:05 2016-05-31 07:39:12 article show Franklin O. 1791 0000-0002-0376-4140 Cambui C.A. Gruffman L. Palmroth S. Oren R. Näsholm T. The carbon bonus of organic nitrogen enhances nitrogen use efficiency of plants pub prog_esm allocation; amino acids; ammonium; assimilation; growth model; nitrate; nitrogen source; plant theory The importance of organic nitrogen (N) for plant nutrition and productivity is increasingly being recognized. Here we show that it is not only the availability in the soil that matters, but also the effects on plant growth. The chemical form of N taken up, whether inorganic (such as nitrate) or organic (such as amino acids), may significantly influence plant shoot and root growth, and nitrogen use efficiency (NUE). We analysed these effects by synthesizing results from multiple laboratory experiments on small seedlings (Arabidopsis, poplar, pine and spruce) based on a tractable plant growth model. A key point is that the carbon cost of assimilating organic N into proteins is lower than that of inorganic N, mainly due to its carbon content. This carbon bonus makes it more beneficial for plants to take up organic than inorganic N, even when its availability to the roots is much lower -up to 70% lower for Arabidopsis seedlings. At equal growth rate, root: shoot ratio was up to three times higher and nitrogen productivity up to 20% higher for organic than inorganic N, which both are factors that may contribute to higher NUE in crop production. 2017-01 published Wiley 10.1111/pce.12772 95 public Plant, Cell & Environment 40 1 25-35 TRUE 01407791 Effects of phosphorus limitations on Life, Earth system and Society (IMBALANCE-P, FP7 610028) FALSE yes info:eu-repo/grantAgreement/EC/FP7/610028/EU/Effects of phosphorus limitations on Life, Earth system and Society/IMBALANCE-P info:eu-repo/semantics/article info:eu-repo/semantics/openAccess