Foliar uptake of atmospheric nitrate by two dominant subalpine plants: insights from in situ triple-isotope analysis

The New Phytologist
Ilann BourgeoisJoël Savarino

Abstract

The significance of foliar uptake of nitrogen (N) compounds in natural conditions is not well understood, despite growing evidence of its importance to plant nutrition. In subalpine meadows, N-limitation fosters the dominance of specific subalpine plant species, which in turn ensures the provision of essential ecosystems services. Understanding how these plants absorb N and from which sources is important in predicting ecological consequences of increasing N deposition. Here, we investigate the sources of N to plants from subalpine meadows with distinct land-use history in the French Alps, using the triple isotopes (Δ17 O, δ18 O, and δ15 N) of plant tissue nitrate (NO3- ). We use this approach to evaluate the significance of foliar uptake of atmospheric NO3- (NO3-atm ). The foliar uptake of NO3-atm accounted for 4-16% of the leaf NO3- content, and contributed more to the leaf NO3- pool after peak biomass. Additionally, the gradual 15 N enrichment of NO3- from the soil to the leaves reflected the contribution of NO3-atm assimilation to plants' metabolism. The present study confirms that foliar uptake is a potentially important pathway for NO3-atm into subalpine plants. This is of major significance as N emissions (and deposition...Continue Reading

References

Apr 29, 2004·Environmental Science & Technology·Greg MichalskiMark Thiemens
Nov 3, 2005·Environmental Health Perspectives·Mary H WardUNKNOWN International Society for Environmental Epidemiology
May 23, 2006·Ecological Applications : a Publication of the Ecological Society of America·Jill S Baron
Jul 11, 2006·Ecological Applications : a Publication of the Ecological Society of America·William D BowmanMagdalena Wiedermann
May 16, 2007·Proceedings of the National Academy of Sciences of the United States of America·Benjamin Z HoultonLars O Hedin
Jun 6, 2009·Science·M G HastingsE J Steig
Dec 2, 2010·Plant, Cell & Environment·Lixin Wang, Stephen A Macko
Apr 1, 1997·Trends in Ecology & Evolution·J P Kaye, S C Hart
Dec 14, 2011·Environmental Science & Technology·Navid René DejwakhJennifer McIntosh
Apr 27, 2012·Environmental Science & Technology·Kristen L KarshDaniel M Sigman
Sep 12, 2012·The New Phytologist·Erik A Hobbie, Peter Högberg
Oct 12, 2012·Environmental Science & Technology·Xue-Yan LiuMuneoki Yoh
Jan 24, 2013·Proceedings of the National Academy of Sciences of the United States of America·Shenghui CuiYong-Guan Zhu
Feb 23, 2013·Proceedings of the National Academy of Sciences of the United States of America·Joel SavarinoEric P Achterberg
May 29, 2013·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·David FowlerMaren Voss
Nov 5, 2014·Proceedings of the National Academy of Sciences of the United States of America·Sarah K WexlerPeter M Groffman
Nov 11, 2014·Environmental Science & Technology·M Alisa MastGregory A Wetherbee
Jan 22, 2015·Proceedings of the National Academy of Sciences of the United States of America·Yunting FangMuneoki Yoh
May 11, 2016·Proceedings of the National Academy of Sciences of the United States of America·Yi LiJeffrey L Collett
Oct 30, 2016·Proceedings of the National Academy of Sciences of the United States of America·Julie Granger, Scott D Wankel
Jan 25, 2017·Nature·Jordan R MayorDavid A Wardle
Apr 12, 2017·The Science of the Total Environment·Nubia Luz EstradaW Andrew Jackson
Mar 16, 2018·Proceedings of the National Academy of Sciences of the United States of America·Xue-Yan LiuCong-Qiang Liu
Mar 27, 2018·The Science of the Total Environment·Ilann BourgeoisJean-Christophe Clément
Apr 21, 2018·Environmental Science & Technology·Ilann BourgeoisJean-Christophe Clément
Jun 1, 2006·Functional Plant Biology : FPB·Guillaume Tcherkez, Graham D Farquhar

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.