nitrogen

Summary

Summary: An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells.

Top Publications

  1. Palmroth S, Katul G, Maier C, Ward E, Manzoni S, Vico G. On the complementary relationship between marginal nitrogen and water-use efficiencies among Pinus taeda leaves grown under ambient and CO2-enriched environments. Ann Bot. 2013;111:467-77 pubmed publisher
    Water and nitrogen (N) are two limiting resources for biomass production of terrestrial vegetation...
  2. Smithwick E, Naithani K, Balser T, Romme W, Turner M. Post-fire spatial patterns of soil nitrogen mineralization and microbial abundance. PLoS ONE. 2012;7:e50597 pubmed publisher
    Stand-replacing fires influence soil nitrogen availability and microbial community composition, which may in turn mediate post-fire successional dynamics and nutrient cycling...
  3. Beversdorf L, Miller T, McMahon K. The role of nitrogen fixation in cyanobacterial bloom toxicity in a temperate, eutrophic lake. PLoS ONE. 2013;8:e56103 pubmed publisher
    ..For example, nitrogen (N) speciation and cycling play an important role, on daily time scales, in shaping cyanobacterial communities ..
  4. Ye H, Gemperline E, Venkateshwaran M, Chen R, Delaux P, Howes Podoll M, et al. MALDI mass spectrometry-assisted molecular imaging of metabolites during nitrogen fixation in the Medicago truncatula-Sinorhizobium meliloti symbiosis. Plant J. 2013;75:130-145 pubmed publisher
    Symbiotic associations between leguminous plants and nitrogen-fixing rhizobia culminate in the formation of specialized organs called root nodules, in which the rhizobia fix atmospheric nitrogen and transfer it to the plant...
  5. Liu B, Vieler A, Li C, Daniel Jones A, Benning C. Triacylglycerol profiling of microalgae Chlamydomonas reinhardtii and Nannochloropsis oceanica. Bioresour Technol. 2013;146:310-316 pubmed publisher
    ..TAG profiling was performed in Chlamydomonas reinhardtii and Nannochloropsis oceanica grown in nitrogen (N)-replete or N-depleted medium...
  6. Kim M, Shin I, Cho S, Lee J, Rhee S. Structural and functional insights into (S)-ureidoglycolate dehydrogenase, a metabolic branch point enzyme in nitrogen utilization. PLoS ONE. 2012;7:e52066 pubmed publisher
    b>Nitrogen metabolism is one of essential processes in living organisms. The catabolic pathways of nitrogenous compounds play a pivotal role in the storage and recovery of nitrogen...
  7. Li Q, Bai H, Liang W, Xia J, Wan S, van der Putten W. Nitrogen addition and warming independently influence the belowground micro-food web in a temperate steppe. PLoS ONE. 2013;8:e60441 pubmed publisher
    Climate warming and atmospheric nitrogen (N) deposition are known to influence ecosystem structure and functioning...
  8. Zhao M, Xiang W, Tian D, Deng X, Huang Z, Zhou X, et al. Effects of increased nitrogen deposition and rotation length on long-term productivity of Cunninghamia lanceolata plantation in southern China. PLoS ONE. 2013;8:e55376 pubmed publisher
    ..However, increased nitrogen (N) deposition offsets soil N depletion...
  9. Bihuniak J, Simpson C, Sullivan R, Caseria D, Kerstetter J, Insogna K. Dietary protein-induced increases in urinary calcium are accompanied by similar increases in urinary nitrogen and urinary urea: a controlled clinical trial. J Acad Nutr Diet. 2013;113:447-51 pubmed publisher
    ..Urinary nitrogen, urinary calcium, urinary urea, and bone turnover markers were measured at days 0, 7, and 10...

More Information

Publications85

  1. Funk J, Glenwinkel L, Sack L. Differential allocation to photosynthetic and non-photosynthetic nitrogen fractions among native and invasive species. PLoS ONE. 2013;8:e64502 pubmed publisher
    ..Intra-leaf nitrogen (N) allocation should support these physiological differences; however, N biochemistry has not been examined in ..
  2. Chiang L, Chaubey I, Hong N, Lin Y, Huang T. Implementation of BMP strategies for adaptation to climate change and land use change in a pasture-dominated watershed. Int J Environ Res Public Health. 2012;9:3654-84 pubmed publisher
    ..Simulation results indicate that total nitrogen (TN) and total phosphorus (TP) losses increase with increasing litter application rates...
  3. Xi Y, Chen K, Dai W, Ma J, Zhang M, Jiang M, et al. Succinic acid production by Actinobacillus succinogenes NJ113 using corn steep liquor powder as nitrogen source. Bioresour Technol. 2013;136:775-9 pubmed publisher
    In this study, corn steep liquor powder (CSL) was used as nitrogen source to replace the relatively costly yeast extract typically used for the production of succinic acid with Actinobacillus succinogenes NJ113...
  4. Morales Jiménez J, Vera Ponce de León A, García Domínguez A, Martinez Romero E, Zúñiga G, Hernandez Rodriguez C. Nitrogen-fixing and uricolytic bacteria associated with the gut of Dendroctonus rhizophagus and Dendroctonus valens (Curculionidae: Scolytinae). Microb Ecol. 2013;66:200-10 pubmed publisher
    The bark beetles of the genus Dendroctonus feed on phloem that is a nitrogen-limited source...
  5. Blair L, Sperry J. Natural products containing a nitrogen-nitrogen bond. J Nat Prod. 2013;76:794-812 pubmed publisher
    As of early 2013, over 200 natural products are known to contain a nitrogen-nitrogen (N-N) bond. This report categorizes these compounds by structural class and details their isolation and biological activity.
  6. Liu J, Huang W, Zhou G, Zhang D, Liu S, Li Y. Nitrogen to phosphorus ratios of tree species in response to elevated carbon dioxide and nitrogen addition in subtropical forests. Glob Chang Biol. 2013;19:208-16 pubmed publisher
    Increased atmospheric carbon dioxide (CO2 ) concentrations and nitrogen (N) deposition induced by human activities have greatly influenced the stoichiometry of N and phosphorus (P)...
  7. Sanchez Pardo B, Carpena R, Zornoza P. Cadmium in white lupin nodules: impact on nitrogen and carbon metabolism. J Plant Physiol. 2013;170:265-71 pubmed publisher
    ..cv. Multolupa nodules, and to determine its effects on carbon and nitrogen metabolism. Nodulated white lupin plants were grown in a growth chamber with or without Cd (150 ?M)...
  8. Zhou G, Wang Y, Zhai S, Ge F, Liu Z, Dai Y, et al. Biodegradation of the neonicotinoid insecticide thiamethoxam by the nitrogen-fixing and plant-growth-promoting rhizobacterium Ensifer adhaerens strain TMX-23. Appl Microbiol Biotechnol. 2013;97:4065-74 pubmed publisher
    ..E. adhaerens TMX-23 is a nitrogen-fixing bacterium harboring two types of nifH genes in its genome, one of which is 98 % identical to the nifH gene ..
  9. Knyazikhin Y, Schull M, Stenberg P, Mõttus M, Rautiainen M, Yang Y, et al. Hyperspectral remote sensing of foliar nitrogen content. Proc Natl Acad Sci U S A. 2013;110:E185-92 pubmed publisher
    ..canopy bidirectional reflectance factor (BRF) in the near infrared (NIR) spectral region and foliar mass-based nitrogen concentration (%N) has been reported in some temperate and boreal forests...
  10. Burton E, Martin V. Proteomic analysis of Clostridium thermocellum ATCC 27405 reveals the upregulation of an alternative transhydrogenase-malate pathway and nitrogen assimilation in cells grown on cellulose. Can J Microbiol. 2012;58:1378-88 pubmed publisher
    ..can divert carbon into alternative pathways for the purpose of producing biosynthetic intermediates necessary to respond to growth on cellulose, including transhydrogenation of NADH to NADPH and increased nitrogen assimilation.
  11. Wroblewitz S, Hüther L, Manderscheid R, Weigel H, Wätzig H, Dänicke S. The effect of free air carbon dioxide enrichment and nitrogen fertilisation on the chemical composition and nutritional value of wheat and barley grain. Arch Anim Nutr. 2013;67:263-78 pubmed publisher
    ..The influence of two different nitrogen (N) fertilisation levels (adequate N supply [N100] and nearly 50% of adequate N supply [N50]) were studied as ..
  12. Pathakoti K, Morrow S, Han C, Pelaez M, He X, Dionysiou D, et al. Photoinactivation of Escherichia coli by sulfur-doped and nitrogen-fluorine-codoped TiO2 nanoparticles under solar simulated light and visible light irradiation. Environ Sci Technol. 2013;47:9988-96 pubmed publisher
    ..Visible light (VL) activated sulfur-doped TiO2 (S-TiO2) and nitrogen-fluorine-codoped TiO2 (N-F-TiO2) were synthesized by sol-gel methods and characterized...
  13. Luo J, Li H, Liu T, Polle A, Peng C, Luo Z. Nitrogen metabolism of two contrasting poplar species during acclimation to limiting nitrogen availability. J Exp Bot. 2013;64:4207-24 pubmed publisher
    ..g. AMT1;2) and NRTs (e.g. NRT1;2 and NRT2;4B) in roots of both species. These data indicate that poplar species slow down processes of N acquisition and assimilation in acclimation to limiting N supply. ..
  14. Li X, Moellering E, Liu B, Johnny C, Fedewa M, Sears B, et al. A galactoglycerolipid lipase is required for triacylglycerol accumulation and survival following nitrogen deprivation in Chlamydomonas reinhardtii. Plant Cell. 2012;24:4670-86 pubmed publisher
    ..Thus, the pgd1 mutant provides evidence for an important biological function of TAG synthesis following N deprivation, namely, relieving a detrimental overreduction of the photosynthetic electron transport chain...
  15. Schumacher J, Behrends V, Pan Z, Brown D, Heydenreich F, Lewis M, et al. Nitrogen and carbon status are integrated at the transcriptional level by the nitrogen regulator NtrC in vivo. MBio. 2013;4:e00881-13 pubmed publisher
    b>Nitrogen regulation in Escherichia coli is a model system for gene regulation in bacteria...
  16. Babbin A, Keil R, Devol A, Ward B. Organic matter stoichiometry, flux, and oxygen control nitrogen loss in the ocean. Science. 2014;344:406-8 pubmed publisher
    Biologically available nitrogen limits photosynthesis in much of the world ocean...
  17. Günther T, Lampei C, Schmid K. Mutational bias and gene conversion affect the intraspecific nitrogen stoichiometry of the Arabidopsis thaliana transcriptome. Mol Biol Evol. 2013;30:561-8 pubmed publisher
    The transcriptome and proteome of Arabidopsis thaliana are reduced in nitrogen content when compared with other taxa, which may result from ecological nitrogen limitation. We hypothesized that if the A...
  18. Cordero B, Couso I, León R, Rodríguez H, Vargas M. Isolation and characterization of a lycopene ?-cyclase gene of Chlorella (Chromochloris) zofingiensis. Regulation of the carotenogenic pathway by nitrogen and light. Mar Drugs. 2012;10:2069-88 pubmed publisher
    ..In addition, the regulation of the carotenogenic pathway by light and nitrogen was also studied in C. zofingiensis...
  19. Gosain S, Mercer K, Twaddell W, Uradomo L, Greenwald B. Liquid nitrogen spray cryotherapy in Barrett's esophagus with high-grade dysplasia: long-term results. Gastrointest Endosc. 2013;78:260-5 pubmed publisher
    Liquid nitrogen endoscopic spray cryotherapy can safely and effectively eradicate high-grade dysplasia in Barrett's esophagus (BE-HGD). Long-term data on treatment success and safety are lacking.
  20. Sakudo A, Higa M, Maeda K, Shimizu N, Imanishi Y, Shintani H. Sterilization mechanism of nitrogen gas plasma: induction of secondary structural change in protein. Microbiol Immunol. 2013;57:536-42 pubmed publisher
    ..Thus, the present results suggest that conformational changes induced by N? gas plasma are mediated by mechanisms distinct from heat denaturation...
  21. Bucking C, LeMoine C, Walsh P. Waste nitrogen metabolism and excretion in zebrafish embryos: effects of light, ammonia, and nicotinamide. J Exp Zool A Ecol Genet Physiol. 2013;319:391-403 pubmed publisher
    ..Our results indicate that there is a relatively rapid and large scope for increases in urea production/excretion rates in developing embryos. Potential mechanisms for these increases are discussed...
  22. Hünerberg M, McGinn S, Beauchemin K, Okine E, Harstad O, McAllister T. Effect of dried distillers grains plus solubles on enteric methane emissions and nitrogen excretion from growing beef cattle. J Anim Sci. 2013;91:2846-57 pubmed publisher
    ..However, to completely assess the impact of DDGS on greenhouse gas emissions of growing feedlot cattle, the potential contribution of increased N excretion to heightened NH3 and nitrous oxide emissions requires consideration...
  23. Pan M, Henry L, Liu R, Huang X. Nitrogen removal from slaughterhouse wastewater through partial nitrification followed by denitrification in intermittently aerated sequencing batch reactors at 11 degreeC. Environ Technol. 2014;35:470-7 pubmed
    This study is aimed to examine the removal of nitrogen from high strength slaughterhouse wastewater at 11 degreeC via partial nitrification followed by denitrification (PND), using the intermittently aerated sequencing batch reactor (..
  24. Paulot F, Jacob D, Henze D. Sources and processes contributing to nitrogen deposition: an adjoint model analysis applied to biodiversity hotspots worldwide. Environ Sci Technol. 2013;47:3226-33 pubmed publisher
    Anthropogenic enrichment of reactive nitrogen (Nr) deposition is an ecological concern...
  25. Barbosa C, Mendes Faia A, Mendes Ferreira A. The nitrogen source impacts major volatile compounds released by Saccharomyces cerevisiae during alcoholic fermentation. Int J Food Microbiol. 2012;160:87-93 pubmed publisher
    ..The objective of this study was to identify the effects of methionine on aroma compounds formation. Nitrogen source effects on growth, fermentative behaviour and aroma compounds formation were evaluated in three strains of ..
  26. Indest K, Hancock D, Jung C, Eberly J, Mohn W, Eltis L, et al. Role of nitrogen limitation in transformation of RDX (hexahydro-1,3,5-trinitro-1,3,5-triazine) by Gordonia sp. strain KTR9. Appl Environ Microbiol. 2013;79:1746-50 pubmed publisher
    ..strain KTR9 and its glnR mutant were studied as a function of nitrogen availability to further investigate the observed ammonium-mediated inhibition of RDX degradation...
  27. Imamura T, Kinugawa K, Minatsuki S, Muraoka H, Kato N, Inaba T, et al. Urine osmolality estimated using urine urea nitrogen, sodium and creatinine can effectively predict response to tolvaptan in decompensated heart failure patients. Circ J. 2013;77:1208-13 pubmed
    ..Urine osmolality (U-OSM) is valuable to predict response to tolvaptan (TLV) in decompensated heart failure patients, but measurement of U-OSM is not always available on site...
  28. Liu X, Zhang Y, Han W, Tang A, Shen J, Cui Z, et al. Enhanced nitrogen deposition over China. Nature. 2013;494:459-62 pubmed publisher
    China is experiencing intense air pollution caused in large part by anthropogenic emissions of reactive nitrogen. These emissions result in the deposition of atmospheric nitrogen (N) in terrestrial and aquatic ecosystems, with ..
  29. Alvarez Clare S, Mack M, Brooks M. A direct test of nitrogen and phosphorus limitation to net primary productivity in a lowland tropical wet forest. Ecology. 2013;94:1540-51 pubmed
    Experimental evidence for limitation of net primary productivity (NPP) by nitrogen (N) or phosphorus (P) in lowland tropical forests is rare, and the results from the few existing studies have been inconclusive...
  30. Wang Y, Zhang C, Hao Q, Sha A, Zhou R, Zhou X, et al. Elucidation of miRNAs-mediated responses to low nitrogen stress by deep sequencing of two soybean genotypes. PLoS ONE. 2013;8:e67423 pubmed publisher
    b>Nitrogen (N) is a major limiting factor in crop production, and plant adaptive responses to low N are involved in many post-transcriptional regulation. Recent studies indicate that miRNAs play important roles in adaptive responses...
  31. Pena R, Polle A. Attributing functions to ectomycorrhizal fungal identities in assemblages for nitrogen acquisition under stress. ISME J. 2014;8:321-30 pubmed publisher
    Mycorrhizal fungi have a key role in nitrogen (N) cycling, particularly in boreal and temperate ecosystems. However, the significance of ectomycorrhizal fungal (EMF) diversity for this important ecosystem function is unknown...
  32. Lee I, Yang L, Sebetso G, Allen R, Doan T, Blundell R, et al. Characterization of the complete uric acid degradation pathway in the fungal pathogen Cryptococcus neoformans. PLoS ONE. 2013;8:e64292 pubmed publisher
    ..assaying of the deletion mutants' ability to assimilate uric acid and its pathway intermediates as the sole nitrogen source validated their enzymatic functions...
  33. Liu L, Zhang T, Gilliam F, Gundersen P, Zhang W, Chen H, et al. Interactive effects of nitrogen and phosphorus on soil microbial communities in a tropical forest. PLoS ONE. 2013;8:e61188 pubmed publisher
    Elevated nitrogen (N) deposition in humid tropical regions may exacerbate phosphorus (P) deficiency in forests on highly weathered soils...
  34. Kridelbaugh D, Nelson J, Engle N, Tschaplinski T, Graham D. Nitrogen and sulfur requirements for Clostridium thermocellum and Caldicellulosiruptor bescii on cellulosic substrates in minimal nutrient media. Bioresour Technol. 2013;130:125-35 pubmed publisher
    ..that would increase costs for consolidated bioprocessing for biofuel production and create a waste stream with nitrogen, sulfur and phosphate. C...
  35. Schepers W, Van Zeebroeck G, Pinkse M, Verhaert P, Thevelein J. In vivo phosphorylation of Ser21 and Ser83 during nutrient-induced activation of the yeast protein kinase A (PKA) target trehalase. J Biol Chem. 2012;287:44130-42 pubmed publisher
    ..We now show, using phosphospecific antibodies, that glucose and nitrogen activation of trehalase in vivo is associated with phosphorylation of Ser(21) and Ser(83)...
  36. Rosenwasser S, Graff van Creveld S, Schatz D, Malitsky S, Tzfadia O, Aharoni A, et al. Mapping the diatom redox-sensitive proteome provides insight into response to nitrogen stress in the marine environment. Proc Natl Acad Sci U S A. 2014;111:2740-5 pubmed publisher
    ..Intriguingly, we found redox-sensitive thiols in numerous enzymes composing the nitrogen assimilation pathway and the recently discovered diatom urea cycle...
  37. Seo S, Yoon Y, Lee J, Park Y, Lee H. Nitrogen-doped partially reduced graphene oxide rewritable nonvolatile memory. ACS Nano. 2013;7:3607-15 pubmed publisher
    ..7-2.1 eV and contained a sp2 C?C framework with 45-50% oxygen-functionalized carbon density and 3% doped nitrogen atoms...
  38. Wan Y, Shewry P, Hawkesford M. A novel family of ?-gliadin genes are highly regulated by nitrogen supply in developing wheat grain. J Exp Bot. 2013;64:161-8 pubmed publisher
    Six wheat cultivars were grown at Rothamsted (UK) with three levels of nitrogen fertilizer (100, 200 and 350 kg N/ha) in 2009 and 2010...
  39. Zhao Y, Wong S, Wong H, Wu S, Hu T, Yeung K, et al. Effects of carbon and nitrogen plasma immersion ion implantation on in vitro and in vivo biocompatibility of titanium alloy. ACS Appl Mater Interfaces. 2013;5:1510-6 pubmed publisher
    ..In this work, nitrogen and carbon plasma immersion ion implantation (N-PIII and C-PIII) is conducted to modify Ti-6Al-4V to produce a ..
  40. Bettez N, Groffman P. Nitrogen deposition in and near an urban ecosystem. Environ Sci Technol. 2013;47:6047-51 pubmed publisher
    Excess nitrogen (N) is a serious water-quality problem in most of the estuaries in the United States, especially those downstream of developed coastal basins...
  41. Southon G, Field C, Caporn S, Britton A, Power S. Nitrogen deposition reduces plant diversity and alters ecosystem functioning: field-scale evidence from a nationwide survey of UK heathlands. PLoS ONE. 2013;8:e59031 pubmed publisher
    Findings from nitrogen (N) manipulation studies have provided strong evidence of the detrimental impacts of elevated N deposition on the structure and functioning of heathland ecosystems...
  42. Guiboileau A, Avila Ospina L, Yoshimoto K, Soulay F, Azzopardi M, Marmagne A, et al. Physiological and metabolic consequences of autophagy deficiency for the management of nitrogen and protein resources in Arabidopsis leaves depending on nitrate availability. New Phytol. 2013;199:683-94 pubmed publisher
    Autophagy is present at a basal level in all plant tissues and is induced during leaf ageing and in response to nitrogen (N) starvation. Nitrogen remobilization from the rosette to the seeds is impaired in autophagy mutants...
  43. Corte L, Dell Abate M, Magini A, Migliore M, Felici B, Roscini L, et al. Assessment of safety and efficiency of nitrogen organic fertilizers from animal-based protein hydrolysates--a laboratory multidisciplinary approach. J Sci Food Agric. 2014;94:235-45 pubmed publisher
  44. Lang M, Li P, Yan X. Runoff concentration and load of nitrogen and phosphorus from a residential area in an intensive agricultural watershed. Sci Total Environ. 2013;458-460:238-45 pubmed publisher
    To evaluate the runoff load of nitrogen (N) and phosphorus (P) in a rural residential area with high N deposition and few wastewater treatment systems in East China, we monitored the concentrations of N and P during 21 rainfall events in ..
  45. Deng L, Shangguan Z, Sweeney S. Changes in soil carbon and nitrogen following land abandonment of farmland on the Loess Plateau, China. PLoS ONE. 2013;8:e71923 pubmed publisher
    ..Our results indicate that soil C and TN were significantly and positively correlated, indicating that studies on the storage of soil OC and TN needs to focus on deeper soil and not be restricted to the uppermost (0-30 cm) soil levels. ..
  46. Masakapalli S, Kruger N, Ratcliffe R. The metabolic flux phenotype of heterotrophic Arabidopsis cells reveals a complex response to changes in nitrogen supply. Plant J. 2013;74:569-82 pubmed publisher
    The extent to which individual plants utilise nitrate and ammonium, the two principal nitrogen sources in the rhizosphere, is variable and many species require a balance between the two forms for optimal growth...
  47. Rai R, Tate J, Nelson D, Cooper T. gln3 mutations dissociate responses to nitrogen limitation (nitrogen catabolite repression) and rapamycin inhibition of TorC1. J Biol Chem. 2013;288:2789-804 pubmed publisher
    The GATA family transcription activator, Gln3 responds to the nitrogen requirements and environmental resources of the cell. When rapidly utilized, "good" nitrogen sources, e.g...
  48. Steenbergh A, Bodelier P, Heldal M, Slomp C, Laanbroek H. Does microbial stoichiometry modulate eutrophication of aquatic ecosystems?. Environ Microbiol. 2013;15:1572-9 pubmed publisher
    ..of prokaryotes (Bacteria and Archaea) can control benthic phosphorus (P) fluxes relative to carbon (C) and nitrogen (N) during organic matter remineralization...
  49. Gilbreath T, Kweka E, Afrane Y, Githeko A, Yan G. Evaluating larval mosquito resource partitioning in western Kenya using stable isotopes of carbon and nitrogen. Parasit Vectors. 2013;6:353 pubmed publisher
    ..Resource limitations within habitats can constrain larval density and development, and this drives competitive interactions among and between species...
  50. Shalini J, Sankaran K, Dong C, Lee C, Tai N, Lin I. In situ detection of dopamine using nitrogen incorporated diamond nanowire electrode. Nanoscale. 2013;5:1159-67 pubmed publisher
    ..observed for the simultaneous detection of dopamine (DA), ascorbic acid (AA), and uric acid (UA) mixture using nitrogen incorporated diamond nanowire (DNW) film electrodes grown by microwave plasma enhanced chemical vapor deposition...
  51. Humbert S, Subedi S, Cohn J, Zeng B, Bi Y, Chen X, et al. Genome-wide expression profiling of maize in response to individual and combined water and nitrogen stresses. BMC Genomics. 2013;14:3 pubmed publisher
    Water and nitrogen are two of the most critical inputs required to achieve the high yield potential of modern corn varieties. Under most agricultural settings however they are often scarce and costly...
  52. Shi Y, Hu S, Lou J, Lu P, Keller J, Yuan Z. Nitrogen removal from wastewater by coupling anammox and methane-dependent denitrification in a membrane biofilm reactor. Environ Sci Technol. 2013;47:11577-83 pubmed publisher
    This work demonstrates, for the first time, the feasibility of nitrogen removal by using the synergy of anammox and denitrifying anaerobic methane oxidation (DAMO) microorganisms in a membrane biofilm reactor (MBfR)...
  53. Zhu D, Zhang L, Ruther R, Hamers R. Photo-illuminated diamond as a solid-state source of solvated electrons in water for nitrogen reduction. Nat Mater. 2013;12:836-41 pubmed publisher
    ..The use of diamond to eject electrons into a reactant liquid represents a new paradigm for photocatalytic reduction, bringing electrons directly to reactants without requiring molecular adsorption to the surface...
  54. Zabalza A, Zulet A, Gil Monreal M, Igal M, Royuela M. Branched-chain amino acid biosynthesis inhibitors: herbicide efficacy is associated with an induced carbon-nitrogen imbalance. J Plant Physiol. 2013;170:814-21 pubmed publisher
    ..KARI and ALS inhibition block the same biosynthetic pathway and exert common effects on carbon metabolism, nitrogen metabolism is more affected via ALS than KARI inhibition...
  55. Wang Y, Zheng M, Gao X, Zhou Z. Protein differential expression in the elongating cotton (Gossypium hirsutum L.) fiber under nitrogen stress. Sci China Life Sci. 2012;55:984-92 pubmed publisher
    b>Nitrogen (N) is an essential macronutrient and an important factor limiting agricultural productivity...
  56. Dang H, Zhou H, Yang J, Ge H, Jiao N, Luan X, et al. Thaumarchaeotal signature gene distribution in sediments of the northern South China Sea: an indicator of the metabolic intersection of the marine carbon, nitrogen, and phosphorus cycles?. Appl Environ Microbiol. 2013;79:2137-47 pubmed publisher
    ..Thaumarchaeota in the upper layer of sediments may contribute significantly to the reservoir of nitrogen oxides in ocean waters and thus to productivity, including the assimilation of carbon...
  57. Mees J, Gomes S, Hasan S, Gomes B, Boas M. Nitrogen removal in a SBR operated with and without pre-denitrification: effect of the carbon:nitrogen ratio and the cycle time. Environ Technol. 2014;35:115-23 pubmed
    The effects of cycle time (CT) (8, 12 and 16h) and C/N ratio (3, 6 and 9) on nitrogen removal efficiencies in a bench top sequencing batch reactor treating slaughterhouse wastewater were investigated under different operating conditions: ..
  58. Fiore C, Baker D, Lesser M. Nitrogen biogeochemistry in the Caribbean sponge, Xestospongia muta: a source or sink of dissolved inorganic nitrogen?. PLoS ONE. 2013;8:e72961 pubmed publisher
    ..Recently, it has been shown that sponges are also important contributors to the nitrogen biogeochemistry of coral reefs...
  59. Zhou X, Wan L, Guo Y. Binding SnO2 nanocrystals in nitrogen-doped graphene sheets as anode materials for lithium-ion batteries. Adv Mater. 2013;25:2152-7 pubmed publisher
    Hybrid anode materials for Li-ion batteries are fabricated by binding SnO2 nanocrystals (NCs) in nitrogen-doped reduced graphene oxide (N-RGO) sheets by means of an in situ hydrazine monohydrate vapor reduction method...
  60. Ferrante A, Savin R, Slafer G. Floret development and grain setting differences between modern durum wheats under contrasting nitrogen availability. J Exp Bot. 2013;64:169-84 pubmed publisher
    ..The dynamics of floret generation/degeneration were studied in contrasting conditions of nitrogen (N) and water availability of modern, well-adapted, durum wheats in order to understand further the bases for ..
  61. Li D, Watson C, Yan M, Lalor S, Rafique R, Hyde B, et al. A review of nitrous oxide mitigation by farm nitrogen management in temperate grassland-based agriculture. J Environ Manage. 2013;128:893-903 pubmed publisher
    ..It is hence crucial to explore various solutions including farm nitrogen (N) management to mitigate N2O emissions without sacrificing farm profitability and food supply...
  62. Mäkelä M, Lundell T, Hatakka A, Hildén K. Effect of copper, nutrient nitrogen, and wood-supplement on the production of lignin-modifying enzymes by the white-rot fungus Phlebia radiata. Fungal Biol. 2013;117:62-70 pubmed publisher
    ..Concentrations of nutrient nitrogen and Cu-supplement varied also in the cultures...
  63. Gil Quintana E, Larrainzar E, Arrese Igor C, Gonzalez E. Is N-feedback involved in the inhibition of nitrogen fixation in drought-stressed Medicago truncatula?. J Exp Bot. 2013;64:281-92 pubmed publisher
    Drought stress is a major factor limiting nitrogen fixation (NF) in crop production...
  64. Shrestha J, Niklaus P, Frossard E, Samaritani E, Huber B, Barnard R, et al. Soil nitrogen dynamics in a river floodplain mosaic. J Environ Qual. 2012;41:2033-45 pubmed publisher
    ..state, river floodplains are heterogeneous and dynamic ecosystems that may retain and remove large quantities of nitrogen from surface waters...
  65. Ma B, Xiao Z, Chen Y, Lei M, Meng Y, Guo D, et al. Synthesis and structure-activity relationships study of cytotoxic bufalin 3-nitrogen-containing-ester derivatives. Steroids. 2013;78:508-12 pubmed publisher
    A series of bufalin 3-nitrogen-containing-ester derivatives (2-6) were designed, synthesized, and evaluated for their proliferation inhibition activities against human cervical epithelial adenocarcinoma (HeLa) and non-small-cell lung ..
  66. van Heeswijk W, Westerhoff H, Boogerd F. Nitrogen assimilation in Escherichia coli: putting molecular data into a systems perspective. Microbiol Mol Biol Rev. 2013;77:628-95 pubmed publisher
    ..We present a comprehensive overview of the hierarchical network of intracellular processes revolving around central nitrogen metabolism in Escherichia coli...
  67. Gan H, Zak D, Hunter M. Chronic nitrogen deposition alters the structure and function of detrital food webs in a northern hardwood ecosystem. Ecol Appl. 2013;23:1311-21 pubmed
    During the next century, atmospheric nitrogen (N) deposition is projected to more than double, potentially slowing litter decomposition by altering microbial community composition and function...
  68. Sasaki K, Ikeda S, Ohkubo T, Kisara C, Sato T, Minamisawa K. Effects of plant genotype and nitrogen level on bacterial communities in rice shoots and roots. Microbes Environ. 2013;28:391-5 pubmed
  69. Tu L, Hu T, Zhang J, Huang L, Xiao Y, Chen G, et al. Nitrogen distribution and cycling through water flows in a subtropical bamboo forest under high level of atmospheric deposition. PLoS ONE. 2013;8:e75862 pubmed publisher
    The hydrological cycle is an important way of transportation and reallocation of reactive nitrogen (N) in forest ecosystems...
  70. Kuster T, Schleppi P, Hu B, Schulin R, Günthardt Goerg M. Nitrogen dynamics in oak model ecosystems subjected to air warming and drought on two different soils. Plant Biol (Stuttg). 2013;15 Suppl 1:220-9 pubmed publisher
    ..On the basis of our results, climate change effects on N dynamics are expected to be less important in oak stands than reduced soil water availability...
  71. Chen P, Xiao T, Qian Y, Li S, Yu S. A nitrogen-doped graphene/carbon nanotube nanocomposite with synergistically enhanced electrochemical activity. Adv Mater. 2013;25:3192-6 pubmed publisher
    A new kind of nitrogen-doped graphene/carbon nanotube nanocomposite can be synthesized by a facile hydrothermal process under mild conditions, which exhibits synergistically enhanced electrochemical activity for the oxygen reduction ..
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