PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16585613-8 2006 Similarly, N2O and CH4 fluxes were predominantly controlled by NO3- content and labile C and N availability in both ST and NT soils at field moisture content, and NH4+ content after irrigation. Nitrous Oxide 11-14 NBL1, DAN family BMP antagonist Homo sapiens 63-66 17929845-5 2007 The BDD/(NO3-) interface was the only N2O and N2 species generating system. Nitrous Oxide 38-41 NBL1, DAN family BMP antagonist Homo sapiens 9-12 17979338-0 2007 Ab initio calculations of nitrogen oxide reactions: formation of N2O2, N2O3, N2O4, N2O5, and N4O2 from NO, NO2, NO3, and N2O. Nitrous Oxide 65-68 NBL1, DAN family BMP antagonist Homo sapiens 112-115 16240026-6 2005 NO3 uptake performed on small amounts of Kaolinite and CaCO3 leads to formation of some N2O5 according to NO((3ads)) + NO(2(g)) --> N2O(5(ads)) --> N2O(5(g)). Nitrous Oxide 88-91 NBL1, DAN family BMP antagonist Homo sapiens 0-3 16240026-6 2005 NO3 uptake performed on small amounts of Kaolinite and CaCO3 leads to formation of some N2O5 according to NO((3ads)) + NO(2(g)) --> N2O(5(ads)) --> N2O(5(g)). Nitrous Oxide 135-138 NBL1, DAN family BMP antagonist Homo sapiens 0-3 14621157-6 2003 PO4(3-) and NH4+ content significantly enhanced, and NO2- and NO3- content inhibited, both N2O and CH4 fluxes. Nitrous Oxide 91-94 NBL1, DAN family BMP antagonist Homo sapiens 62-65 14750721-4 2004 The accumulation of NO2-, the absence of detectable NH4+ accumulation, and the production of N2O during in situ acetylene-block experiments suggest that NO3- was being consumed via denitrification. Nitrous Oxide 93-96 NBL1, DAN family BMP antagonist Homo sapiens 153-156 15899276-6 2005 The N2O:N2 ratios increased rapidly when NO3- increased from 63 to 363 microM; however, results from monthly surveys showed that environmental parameters other than NO3- availability may be important in controlling the variation in N2O production via denitrification. Nitrous Oxide 4-7 NBL1, DAN family BMP antagonist Homo sapiens 41-44 11837439-9 2002 There was an increase in N2O release as the overlying water NO3- concentration increased. Nitrous Oxide 25-28 NBL1, DAN family BMP antagonist Homo sapiens 60-63 11237288-5 2001 More than 94% of the N2O was from the reduction of NO3-, probably due to aerobic nitrate respiration as well as respiratory denitrification. Nitrous Oxide 21-24 NBL1, DAN family BMP antagonist Homo sapiens 51-54 16347651-0 1988 Sub-Parts-Per-Billion Nitrate Method: Use of an N(2)O-Producing Denitrifier to Convert NO(3) or NO(3) to N(2)O. Nitrous Oxide 48-53 NBL1, DAN family BMP antagonist Homo sapiens 87-92 34914357-6 2022 In addition, in situ differential electrochemical mass spectrometry (DEMS) indicated that ultrafast *NO2- to *NO reduction and highly selective *NO to *N2O or *N transformation played crucial roles during the NO3- reduction process. Nitrous Oxide 152-155 NBL1, DAN family BMP antagonist Homo sapiens 209-212 35339580-6 2022 (4) Oil-coated fertilizers can reduce the loss of N by slowing down the hydrolysis rate of urea and the nitrification from NH4+ to NO3-, which reduces the N2O release by 70-80% compared to the uncoated fertilizers. Nitrous Oxide 155-158 NBL1, DAN family BMP antagonist Homo sapiens 131-134 11117583-5 2000 Breath N2O was significantly correlated with gastric NO3- (P < 0.01) and was higher in patients with elevated gastric NO2- (246 +/- 87 ppb) than in patients without NO2- (75 +/- 13 ppb). Nitrous Oxide 7-10 NBL1, DAN family BMP antagonist Homo sapiens 53-56 11117583-7 2000 In conclusion, fasting breath N2O concentration is in some manner related to intragastric NO3- and NO2- concentrations. Nitrous Oxide 30-33 NBL1, DAN family BMP antagonist Homo sapiens 90-93 10795767-1 2000 We have previously reported that ingestion of vegetables containing high nitrate (NO3-) increases breath nitrous oxide (N2O) concentration, probably due to denitrification. Nitrous Oxide 105-118 NBL1, DAN family BMP antagonist Homo sapiens 82-85 10795767-1 2000 We have previously reported that ingestion of vegetables containing high nitrate (NO3-) increases breath nitrous oxide (N2O) concentration, probably due to denitrification. Nitrous Oxide 120-123 NBL1, DAN family BMP antagonist Homo sapiens 82-85 10795767-2 2000 In the present study, we estimated NO3- metabolism in the intestine by determining exhaled breath N2O concentration after the ingestion of vegetables by 16 healthy Chinese and Japanese. Nitrous Oxide 98-101 NBL1, DAN family BMP antagonist Homo sapiens 35-38 16232852-6 2000 The N2O emission rates in both the aerobic and anoxic phases were significantly influenced by residual NO3-, increasing monotonically as the concentration of NO3- in the reactor increased. Nitrous Oxide 4-7 NBL1, DAN family BMP antagonist Homo sapiens 103-106 16232852-6 2000 The N2O emission rates in both the aerobic and anoxic phases were significantly influenced by residual NO3-, increasing monotonically as the concentration of NO3- in the reactor increased. Nitrous Oxide 4-7 NBL1, DAN family BMP antagonist Homo sapiens 158-161 16347651-0 1988 Sub-Parts-Per-Billion Nitrate Method: Use of an N(2)O-Producing Denitrifier to Convert NO(3) or NO(3) to N(2)O. Nitrous Oxide 48-53 NBL1, DAN family BMP antagonist Homo sapiens 96-101 16347651-0 1988 Sub-Parts-Per-Billion Nitrate Method: Use of an N(2)O-Producing Denitrifier to Convert NO(3) or NO(3) to N(2)O. Nitrous Oxide 105-110 NBL1, DAN family BMP antagonist Homo sapiens 87-92 16347651-0 1988 Sub-Parts-Per-Billion Nitrate Method: Use of an N(2)O-Producing Denitrifier to Convert NO(3) or NO(3) to N(2)O. Nitrous Oxide 105-110 NBL1, DAN family BMP antagonist Homo sapiens 96-101 16347651-3 1988 The selected denitrifier quantitatively converted NO(3) to N(2)O within 10 min. Nitrous Oxide 59-64 NBL1, DAN family BMP antagonist Homo sapiens 50-55 16347651-10 1988 Analysis of N(2)O production by use of a progress curve yielded K(m) values of 1.7 and 1.8 muM NO(3) for the two denitrifier strains studied. Nitrous Oxide 12-17 NBL1, DAN family BMP antagonist Homo sapiens 95-100 7306876-9 1981 This agrees well with the nitrate partitioning observed by the acetylene inhibition method in which 30--40% of the NO3- -N was recovered as N2O. Nitrous Oxide 140-143 NBL1, DAN family BMP antagonist Homo sapiens 115-118 32840941-8 2021 CONCLUSIONS: The denitrifier method for converting NO3 - to N2 O for isotope analysis was optimized. Nitrous Oxide 60-64 NBL1, DAN family BMP antagonist Homo sapiens 51-54 33987886-4 2021 The NO3 - produced by this reaction is chemically converted to N2 O, and continuous-flow isotope ratio mass spectrometry (CF-IRMS) is used to determine the oxygen isotopic compositions. Nitrous Oxide 63-67 NBL1, DAN family BMP antagonist Homo sapiens 4-7 33708398-2 2021 Nitro-sonium nitrate (NO+NO3 -), known for this property, has attracted a large interest in recent decades and was reported to be synthesized at high pressure and high temperature from a variety of nitro-gen-oxygen precursors, such as N2O4, N2O and N2-O2 mixtures. Nitrous Oxide 235-238 NBL1, DAN family BMP antagonist Homo sapiens 25-28 31524076-4 2021 During the 1st and 2nd WWTs, biological heterotrophic dissimilative NO3- denitrification was confirmed by simultaneous detection of both NO2- and N2O and significant production of CO2 during the NO3- degradation. Nitrous Oxide 146-149 NBL1, DAN family BMP antagonist Homo sapiens 68-71 32222508-5 2020 We confirmed denitrification producing di-nitrogen gas (N2) to be the primary NO3- removal pathway, but found that 6% of NO3- could be released as N2O under high NO3- concentrations and low amounts of bioavailable C, whereas DNRA rates tend to increase with the C amount. Nitrous Oxide 147-150 NBL1, DAN family BMP antagonist Homo sapiens 121-124 32849729-4 2020 Contrarily, aseptically grown plants and axenic algal cells supplied with nitrate (NO3) are reported to emit N2O, indicating that it is produced inside plant cells by some unknown physiological phenomena. Nitrous Oxide 109-112 NBL1, DAN family BMP antagonist Homo sapiens 83-86 32849729-13 2020 As NO3 is a major source of nitrogen for plants and all plants may experience hypoxic and anoxic conditions owing to soil environmental factors, a significant global biogenic source of N2O may be its formation in plants via the proposed pathway. Nitrous Oxide 185-188 NBL1, DAN family BMP antagonist Homo sapiens 3-6 32222508-5 2020 We confirmed denitrification producing di-nitrogen gas (N2) to be the primary NO3- removal pathway, but found that 6% of NO3- could be released as N2O under high NO3- concentrations and low amounts of bioavailable C, whereas DNRA rates tend to increase with the C amount. Nitrous Oxide 147-150 NBL1, DAN family BMP antagonist Homo sapiens 121-124 31465213-5 2019 Our results showed that the form of the N inputs dominated the effects of eCO2 on N2O emissions: eCO2 significantly increased N2O emissions with NO3--N inputs but had no effect with NH4+-N inputs. Nitrous Oxide 82-85 NBL1, DAN family BMP antagonist Homo sapiens 145-148 32124508-5 2020 Alternative fates of NO3 - became increasingly important at higher sulphide treatments, which could include N2 O production and/or transport into intracellular vacuoles. Nitrous Oxide 108-112 NBL1, DAN family BMP antagonist Homo sapiens 21-24 31336304-0 2019 The coupling interaction of NO2- with NH4+ or NO3- as an important source of N2O emission from agricultural soil in the North China Plain. Nitrous Oxide 77-80 NBL1, DAN family BMP antagonist Homo sapiens 46-49 31336304-4 2019 The results showed that the N2O average fluxes from the complex treatments of NO2- + NO3- were 1.4-2.4 times the sum of those from the separate treatments of NO2- and NO3- whereas from the complex treatments of NO2- + NH4+ were a factor of 1-1.4 larger than those from the separate treatments of NO2- and NH4+, indicating the coupling interaction of NO2- with NH4+ or NO3- makes a remarkable contribution to N2O emission from the soil. Nitrous Oxide 28-31 NBL1, DAN family BMP antagonist Homo sapiens 85-88 31336304-4 2019 The results showed that the N2O average fluxes from the complex treatments of NO2- + NO3- were 1.4-2.4 times the sum of those from the separate treatments of NO2- and NO3- whereas from the complex treatments of NO2- + NH4+ were a factor of 1-1.4 larger than those from the separate treatments of NO2- and NH4+, indicating the coupling interaction of NO2- with NH4+ or NO3- makes a remarkable contribution to N2O emission from the soil. Nitrous Oxide 28-31 NBL1, DAN family BMP antagonist Homo sapiens 167-170 31336304-4 2019 The results showed that the N2O average fluxes from the complex treatments of NO2- + NO3- were 1.4-2.4 times the sum of those from the separate treatments of NO2- and NO3- whereas from the complex treatments of NO2- + NH4+ were a factor of 1-1.4 larger than those from the separate treatments of NO2- and NH4+, indicating the coupling interaction of NO2- with NH4+ or NO3- makes a remarkable contribution to N2O emission from the soil. Nitrous Oxide 28-31 NBL1, DAN family BMP antagonist Homo sapiens 167-170 31336304-4 2019 The results showed that the N2O average fluxes from the complex treatments of NO2- + NO3- were 1.4-2.4 times the sum of those from the separate treatments of NO2- and NO3- whereas from the complex treatments of NO2- + NH4+ were a factor of 1-1.4 larger than those from the separate treatments of NO2- and NH4+, indicating the coupling interaction of NO2- with NH4+ or NO3- makes a remarkable contribution to N2O emission from the soil. Nitrous Oxide 408-411 NBL1, DAN family BMP antagonist Homo sapiens 85-88 31336304-6 2019 As the intermediate product of nitrification and denitrification, NO2- produced is also expected to interact with NH4+ or NO3- to promote N2O emission from the soil, especially during fertilization events when NO2- is easily accumulated due to the acceleration of the nitrification and denitrification processes. Nitrous Oxide 138-141 NBL1, DAN family BMP antagonist Homo sapiens 122-125 31517481-6 2019 We hypothesized that supplying N2O vs. NO3- would enhance the dominance of distinct N2O-reducing bacteria. Nitrous Oxide 84-87 NBL1, DAN family BMP antagonist Homo sapiens 39-42 31412465-8 2019 Heavy NO3- and COD loading reduced nitrification and increased the relative contribution of denitrification to N2O in winter. Nitrous Oxide 111-114 NBL1, DAN family BMP antagonist Homo sapiens 6-9 31465213-5 2019 Our results showed that the form of the N inputs dominated the effects of eCO2 on N2O emissions: eCO2 significantly increased N2O emissions with NO3--N inputs but had no effect with NH4+-N inputs. Nitrous Oxide 126-129 NBL1, DAN family BMP antagonist Homo sapiens 145-148 31465213-8 2019 Further, eCO2 enhancement of N2O emissions under NO3--N inputs concurred with a shift in the soil denitrifier community composition in favor of N2O-producing (nirK- and nirS-type) over N2O-consuming (nosZ-type) denitrifiers. Nitrous Oxide 29-32 NBL1, DAN family BMP antagonist Homo sapiens 49-52 31465213-9 2019 Together, these results indicate that eCO2 stimulated N2O emissions mainly through altering plant N preference in favor of NH4+ over NO3- and thus stimulating soil denitrifiers and their activities. Nitrous Oxide 54-57 NBL1, DAN family BMP antagonist Homo sapiens 133-136 30179453-2 2018 Here we describe an alternative analytical protocol to convert NO3- to N2O instead of NO before measurement. Nitrous Oxide 71-74 NBL1, DAN family BMP antagonist Homo sapiens 63-66 30628383-5 2018 The concentration and flux of N2O observed in NH4+-polluted rivers are significantly higher than that in the NO3--polluted and N-limited rivers. Nitrous Oxide 30-33 NBL1, DAN family BMP antagonist Homo sapiens 109-112 31181534-6 2019 In both streams, CH4 emissions were generally higher in summer-fall and negatively correlated with flow and NO3- concentration while N2O emissions were generally higher in winter/spring and positively correlated with flow and NO3-. Nitrous Oxide 133-136 NBL1, DAN family BMP antagonist Homo sapiens 226-229 31087940-4 2019 The results showed that the dissolved N2O concentration in the agricultural headwater stream ranged from 0.26 to 1.28 mug L-1 with an annual mean value of 0.57 mug L-1, with nitrate (NO3--N, with an annual mean concentration of 1.45 mg L-1) as the predominant reactive N form. Nitrous Oxide 38-41 NBL1, DAN family BMP antagonist Homo sapiens 183-186 31087940-6 2019 The annual dynamics of the dissolved N2O concentration were primarily governed by the concentration of NO3--N in the stream water, with denitrification being the main process producing N2O. Nitrous Oxide 37-40 NBL1, DAN family BMP antagonist Homo sapiens 103-106 31087940-8 2019 The temporal variations in the saturation levels of the dissolved N2O were mainly controlled by the water temperature and the NO3--N concentration of the stream water. Nitrous Oxide 66-69 NBL1, DAN family BMP antagonist Homo sapiens 126-129 31087940-9 2019 During April-October, the concentration of dissolved N2O in the stream fluctuated obviously as a result of heavy rainfall, which resulted in an increase of the concentration of NO3-N in the stream water in the short term after the rain, which promoted denitrification and then increased the dissolved N2O level correspondingly. Nitrous Oxide 53-56 NBL1, DAN family BMP antagonist Homo sapiens 177-180 31087940-9 2019 During April-October, the concentration of dissolved N2O in the stream fluctuated obviously as a result of heavy rainfall, which resulted in an increase of the concentration of NO3-N in the stream water in the short term after the rain, which promoted denitrification and then increased the dissolved N2O level correspondingly. Nitrous Oxide 301-304 NBL1, DAN family BMP antagonist Homo sapiens 177-180 30408869-4 2018 In general, the N2O emission fluxes were positively correlated to nitrate (NO3-) concentrations in soil solution, supporting the important role of denitrification in N2O production, which was also modified by environmental factors such as soil temperature and moisture. Nitrous Oxide 16-19 NBL1, DAN family BMP antagonist Homo sapiens 75-78 29131928-8 2018 RESULTS: NO3- /NO2- nitrogen is routed to the 15 Nalpha position of N2 O in the azide reaction; hence the delta15 Nalpha value should be used for N2 O laser spectrometry results. Nitrous Oxide 68-72 NBL1, DAN family BMP antagonist Homo sapiens 9-12 29574362-11 2018 Stepwise regression analysis indicated that dissolved N2O were primarily influenced by NH4+ in agricultural rivers and by NO3- in rural rivers; while dissolved N2O in urban rivers was primarily predicted by temperature and reflected the integrated impact of sewage input and river hydrology. Nitrous Oxide 54-57 NBL1, DAN family BMP antagonist Homo sapiens 122-125 29574362-12 2018 Nitrate-N and NO3--O isotope data and linear regression of N2O and river water variables strongly indicated that dissolved N2O was mainly derived from nitrification in agricultural rivers and denitrification in rural and urban rivers. Nitrous Oxide 123-126 NBL1, DAN family BMP antagonist Homo sapiens 14-17 29569802-8 2018 The N2 O isotopic signature indicated that under eCO2 the sources of the additional emissions, 8,407 mug N2 O-N/m2 during the first 58 days after labelling, were associated with NO 3 - reduction (+2.0%), NH 4 + oxidation (+11.1%) and organic N oxidation (+86.9%). Nitrous Oxide 4-8 NBL1, DAN family BMP antagonist Homo sapiens 178-182 29569802-8 2018 The N2 O isotopic signature indicated that under eCO2 the sources of the additional emissions, 8,407 mug N2 O-N/m2 during the first 58 days after labelling, were associated with NO 3 - reduction (+2.0%), NH 4 + oxidation (+11.1%) and organic N oxidation (+86.9%). Nitrous Oxide 105-109 NBL1, DAN family BMP antagonist Homo sapiens 178-182 29520552-3 2018 BC has recently been shown to accelerate the emissions of N2O via the biotic ammonium oxidation pathway, which results in lower nitrogen use efficiency and environmentally harmful losses of NO3 and/ or N2O. Nitrous Oxide 58-61 NBL1, DAN family BMP antagonist Homo sapiens 190-193 29128121-6 2018 The accumulation of N2O is most likely due to nitrification (high concentrations of dissolved oxygen and NO3- and null concentrations of ammonium) and, to a lesser extent, initial denitrification in a few sampling locations (medium concentrations of dissolved oxygen and NO3-). Nitrous Oxide 20-23 NBL1, DAN family BMP antagonist Homo sapiens 105-108 29128121-6 2018 The accumulation of N2O is most likely due to nitrification (high concentrations of dissolved oxygen and NO3- and null concentrations of ammonium) and, to a lesser extent, initial denitrification in a few sampling locations (medium concentrations of dissolved oxygen and NO3-). Nitrous Oxide 20-23 NBL1, DAN family BMP antagonist Homo sapiens 271-274 29555906-3 2018 Here we find that N2O flux can be predicted by models incorporating soil nitrate concentration (NO3-), water content and temperature using a global field survey of N2O emissions and potential driving factors across a wide range of organic soils. Nitrous Oxide 18-21 NBL1, DAN family BMP antagonist Homo sapiens 96-99 29555906-4 2018 N2O emissions increase with NO3- and follow a bell-shaped distribution with water content. Nitrous Oxide 0-3 NBL1, DAN family BMP antagonist Homo sapiens 28-31 29555906-6 2018 Above 5 mg NO3--N kg-1, either draining wet soils or irrigating well-drained soils increases N2O emission by orders of magnitude. Nitrous Oxide 93-96 NBL1, DAN family BMP antagonist Homo sapiens 11-14 29555906-7 2018 As soil temperature together with NO3- explains 69% of N2O emission, tropical wetlands should be a priority for N2O management. Nitrous Oxide 55-58 NBL1, DAN family BMP antagonist Homo sapiens 34-37 29131928-8 2018 RESULTS: NO3- /NO2- nitrogen is routed to the 15 Nalpha position of N2 O in the azide reaction; hence the delta15 Nalpha value should be used for N2 O laser spectrometry results. Nitrous Oxide 146-150 NBL1, DAN family BMP antagonist Homo sapiens 9-12 28979255-4 2017 When incubated with NO3- and N2O at pH 6.0, transient accumulation of N2O was observed and no significant NH4+ production was observed. Nitrous Oxide 70-73 NBL1, DAN family BMP antagonist Homo sapiens 20-23 28228237-9 2017 Denitrification of NO3- to N2 occurred in anaerobic conditions, while at intermediate dissolved oxygen; N2O was the dominant reaction product. Nitrous Oxide 104-107 NBL1, DAN family BMP antagonist Homo sapiens 19-22 32665782-7 2017 Multiple linear regressions including DOC : NO3 - and other variables (dissolved oxygen, DO; total dissolved nitrogen, TDN; and temperature) explained much of the statistical variation in nitrous oxide (N2O, r2 = 0.78), carbon dioxide (CO2, r2 = 0.78) and methane (CH4, r 2 = 0.50) saturation in stream water. Nitrous Oxide 188-201 NBL1, DAN family BMP antagonist Homo sapiens 44-47 28537019-4 2017 An increase in N2O flux was observed following floodwater disappearance after the addition of NH4+, with a corresponding increase in the concentrations of NO3- and dissolved N2O in the oxic and anoxic soil layers, respectively. Nitrous Oxide 15-18 NBL1, DAN family BMP antagonist Homo sapiens 155-158 28537019-6 2017 An additional anoxic soil slurry experiment demonstrated that the addition of NO3- induced the expression of nirK gene and caused a concomitant increase in N2O production. Nitrous Oxide 156-159 NBL1, DAN family BMP antagonist Homo sapiens 78-81 28537019-7 2017 These findings suggest that NO3- production in the oxic layers is important as it provides a substrate and induces the synthesis of denitrification enzymes in the anoxic layer during N2O production. Nitrous Oxide 183-186 NBL1, DAN family BMP antagonist Homo sapiens 28-31 27596480-2 2017 The influence of NO3- concentration on N2 O production during this process was also evaluated. Nitrous Oxide 39-43 NBL1, DAN family BMP antagonist Homo sapiens 17-20 27596480-4 2017 N2 O production rates correlated with NO3- concentration in the liquid phase, with a 10-fold increase in N2 O production as NO3- concentration increased from 50 to 200 g m-3 . Nitrous Oxide 0-4 NBL1, DAN family BMP antagonist Homo sapiens 38-41 27596480-4 2017 N2 O production rates correlated with NO3- concentration in the liquid phase, with a 10-fold increase in N2 O production as NO3- concentration increased from 50 to 200 g m-3 . Nitrous Oxide 0-4 NBL1, DAN family BMP antagonist Homo sapiens 124-127 27596480-4 2017 N2 O production rates correlated with NO3- concentration in the liquid phase, with a 10-fold increase in N2 O production as NO3- concentration increased from 50 to 200 g m-3 . Nitrous Oxide 105-109 NBL1, DAN family BMP antagonist Homo sapiens 124-127 27596480-7 2017 This study confirmed (i) the feasibility of co-oxidising CH4 and H2 S with denitrification, as well as (ii) the critical need to control NO3- concentration to minimize N2 O production by anoxic denitrifiers. Nitrous Oxide 168-172 NBL1, DAN family BMP antagonist Homo sapiens 137-140 27699705-5 2016 Parameters included the maximum specific reduction rates, [Formula: see text], growth rates, [Formula: see text], and yields, Y, for reduction of NO3- (nitrate) to nitrite (NO2-), NO2- to N2O, and N2O to N2, with acetate as the electron donor. Nitrous Oxide 197-200 NBL1, DAN family BMP antagonist Homo sapiens 146-149 28075565-12 2017 Measurements by in situ infrared spectroscopy show that N2O is formed in sp3-C-H acetoxylation reactions at 80 C. Studies confirm that cyclopalladated NO2 complexes are rapidly oxidized to the corresponding NO3 adducts on exposure to NO2(g). Nitrous Oxide 56-59 NBL1, DAN family BMP antagonist Homo sapiens 208-211 27605461-3 2016 METHODS: The ammonium nitrate (NH4 NO3 ) decomposition technique provides a strategy to scale the 15 N site-specific (SP delta15 Nalpha - delta15 Nbeta ) and bulk (delta15 Nbulk = (delta15 Nalpha + delta15 Nbeta )/2) isotopic composition of N2 O against the international standard for the 15 N/14 N isotope ratio (AIR-N2 ). Nitrous Oxide 245-249 NBL1, DAN family BMP antagonist Homo sapiens 35-38 27605461-5 2016 RESULTS: The validity of the NH4 NO3 decomposition technique to link NH4+ and NO3- moiety-specific delta15 N analysis by IRMS to the site-specific nitrogen isotopic composition of N2 O was confirmed. Nitrous Oxide 180-184 NBL1, DAN family BMP antagonist Homo sapiens 33-36 27605461-5 2016 RESULTS: The validity of the NH4 NO3 decomposition technique to link NH4+ and NO3- moiety-specific delta15 N analysis by IRMS to the site-specific nitrogen isotopic composition of N2 O was confirmed. Nitrous Oxide 180-184 NBL1, DAN family BMP antagonist Homo sapiens 78-81 27605461-7 2016 CONCLUSIONS: The study reveals that the completeness and reproducibility of the NH4 NO3 decomposition reaction currently confine the anchoring of N2 O site-specific isotopic composition to the international isotope ratio scale AIR-N2 . Nitrous Oxide 146-150 NBL1, DAN family BMP antagonist Homo sapiens 84-87 27699705-8 2016 When N2O and NO3- were added concurrently, the apparent (extant) kinetics, [Formula: see text], assuming reduction to N2, were 6.3 gCOD gCOD-1 d-1, compared to 5.4 gCOD gCOD-1 d-1 for NO3- as the sole added acceptor. Nitrous Oxide 5-8 NBL1, DAN family BMP antagonist Homo sapiens 184-187 27593275-3 2016 The aim of this study was therefore to assess how maximum potential denitrification and N2O production rates, and the relationship between the two (relative N2O production), is controlled by availability of nitrate (NO3(-)), carbon (C), phosphorus (P), and temperature. Nitrous Oxide 88-91 NBL1, DAN family BMP antagonist Homo sapiens 216-219 27170579-3 2016 Riverine N2 O flux was significantly correlated with NH4 , NO3 and DIN (NH4 + NO3 ) concentrations, loads and yields. Nitrous Oxide 9-13 NBL1, DAN family BMP antagonist Homo sapiens 59-62 27170579-3 2016 Riverine N2 O flux was significantly correlated with NH4 , NO3 and DIN (NH4 + NO3 ) concentrations, loads and yields. Nitrous Oxide 9-13 NBL1, DAN family BMP antagonist Homo sapiens 79-82 27593275-3 2016 The aim of this study was therefore to assess how maximum potential denitrification and N2O production rates, and the relationship between the two (relative N2O production), is controlled by availability of nitrate (NO3(-)), carbon (C), phosphorus (P), and temperature. Nitrous Oxide 157-160 NBL1, DAN family BMP antagonist Homo sapiens 216-219 27593275-5 2016 Maximum potential denitrification and N2O production rates at 4 C were reached already at NO3(-) additions of 106-120mug NO3(-)-N/L, and remained unchanged with higher NO3 amendments. Nitrous Oxide 38-41 NBL1, DAN family BMP antagonist Homo sapiens 90-93 27593275-5 2016 Maximum potential denitrification and N2O production rates at 4 C were reached already at NO3(-) additions of 106-120mug NO3(-)-N/L, and remained unchanged with higher NO3 amendments. Nitrous Oxide 38-41 NBL1, DAN family BMP antagonist Homo sapiens 121-124 27593275-5 2016 Maximum potential denitrification and N2O production rates at 4 C were reached already at NO3(-) additions of 106-120mug NO3(-)-N/L, and remained unchanged with higher NO3 amendments. Nitrous Oxide 38-41 NBL1, DAN family BMP antagonist Homo sapiens 121-124 27593275-8 2016 Combined, our results suggests that unproductive northern boreal lakes currently have low potential for denitrification but are susceptible to small changes in NO3 loading especially if these are accompanied by enhanced C and P availability, likely promoting higher N2O production relative to N2. Nitrous Oxide 266-269 NBL1, DAN family BMP antagonist Homo sapiens 160-163 29732769-2 2016 Results showed that the N2O production of restoration wetland soils (R2002 and R2007) with NO3--N addition was much higher than that with NH4+-N addition, but both NH4+-N and NO3--N additions demonstrated inhibition on the N2O production of soils in R0. Nitrous Oxide 24-27 NBL1, DAN family BMP antagonist Homo sapiens 91-94 27139304-5 2016 In the absence of methanol injection failure and with an influent BOD/NO3-N ratio higher than 3, average reduction of N2O was estimated to be of 93%. Nitrous Oxide 118-121 NBL1, DAN family BMP antagonist Homo sapiens 70-73 26841777-10 2016 We propose that aerobic methane oxidation coupled to denitrification and perchlorate reduction (AMO-D and AMO-PR) directly oxidized methane and reduced NO3 (-) to NO2 (-) or N2O under anoxic condition, producing organic matter for methanol-assimilating denitrification and perchlorate reduction (MA-D and MA-PR) to reduce NO3 (-). Nitrous Oxide 174-177 NBL1, DAN family BMP antagonist Homo sapiens 152-155 26841777-10 2016 We propose that aerobic methane oxidation coupled to denitrification and perchlorate reduction (AMO-D and AMO-PR) directly oxidized methane and reduced NO3 (-) to NO2 (-) or N2O under anoxic condition, producing organic matter for methanol-assimilating denitrification and perchlorate reduction (MA-D and MA-PR) to reduce NO3 (-). Nitrous Oxide 174-177 NBL1, DAN family BMP antagonist Homo sapiens 322-325 26969694-3 2016 Microcosms established with soils from two representative U.S. Midwest agricultural regions produced N2O from added NO3 (-) or NO2 (-) in the presence of antibiotics to inhibit bacteria. Nitrous Oxide 101-104 NBL1, DAN family BMP antagonist Homo sapiens 116-119 29732769-3 2016 Although the effect of NO3--N addition on the total N2O production of topsoil in R2002 was significantly higher than those in R2007, the values in R2002 and R2007 were greatly increased with increasing NO3--N addition. Nitrous Oxide 52-55 NBL1, DAN family BMP antagonist Homo sapiens 23-26 29732769-6 2016 In R0 and R2002 soils, the N2O produced by non-biological processes was generally eleva-ted with NH4+-N addition, while with NO3--N addition, the non-biological processes generating N2O in R0, R2002 and R2007 soils were generally inhibited, which was closely correlated with the regulation of soil pH caused by the import of exogenous nitrogen. Nitrous Oxide 27-30 NBL1, DAN family BMP antagonist Homo sapiens 125-128 29732769-6 2016 In R0 and R2002 soils, the N2O produced by non-biological processes was generally eleva-ted with NH4+-N addition, while with NO3--N addition, the non-biological processes generating N2O in R0, R2002 and R2007 soils were generally inhibited, which was closely correlated with the regulation of soil pH caused by the import of exogenous nitrogen. Nitrous Oxide 182-185 NBL1, DAN family BMP antagonist Homo sapiens 125-128 29732769-7 2016 This study found that the enrichment of NO3--N greatly enhanced the total N2O production of wetland soils and significantly altered the original contribution patterns of biological and non-biological processes to N2O production. Nitrous Oxide 74-77 NBL1, DAN family BMP antagonist Homo sapiens 40-43 29732769-7 2016 This study found that the enrichment of NO3--N greatly enhanced the total N2O production of wetland soils and significantly altered the original contribution patterns of biological and non-biological processes to N2O production. Nitrous Oxide 213-216 NBL1, DAN family BMP antagonist Homo sapiens 40-43 29732769-8 2016 Thus, special attention should be paid on the influences of nutrient import (particularly NO3--N enrichment) induced by ecological restoration project on N2O production of wetland soils. Nitrous Oxide 154-157 NBL1, DAN family BMP antagonist Homo sapiens 90-93 26605044-2 2015 In this nitrogen removal process, a complete biological denitrification from nitrate (NO3 (-)) to molecular nitrogen (N2) was achieved by four reduction steps, forming nitrite (NO2 (-)), nitric oxide (NO) and nitrous oxide (N2O) as intermediate compounds. Nitrous Oxide 209-222 NBL1, DAN family BMP antagonist Homo sapiens 86-89 26567165-0 2015 Retraction note to: Isotopic analysis of N and O in NO3- by selective bacterial reduction to N2O for groundwater pollution. Nitrous Oxide 93-96 NBL1, DAN family BMP antagonist Homo sapiens 52-55 26605044-2 2015 In this nitrogen removal process, a complete biological denitrification from nitrate (NO3 (-)) to molecular nitrogen (N2) was achieved by four reduction steps, forming nitrite (NO2 (-)), nitric oxide (NO) and nitrous oxide (N2O) as intermediate compounds. Nitrous Oxide 224-227 NBL1, DAN family BMP antagonist Homo sapiens 86-89 23480257-8 2013 Flooding with NO3- increased denitrification rate, net N2 O production and heterotrophic respiration, but a reduction in net CH4 production suggests inhibition of methanogenesis by NO3- or N2 O produced from denitrification. Nitrous Oxide 55-59 NBL1, DAN family BMP antagonist Homo sapiens 14-17 24410177-4 2014 We apply recursive partitioning analysis to examine the relationships between N2O flux and NO3-, dissolved oxygen (DO), temperature, land use and surficial geology in the Grand River, Canada, a seventh-order river in an agricultural catchment with substantial urban population. Nitrous Oxide 78-81 NBL1, DAN family BMP antagonist Homo sapiens 91-94 24410177-7 2014 This work indicates that a linear relationship between NO3- and N2O is unlikely to exist in most agricultural and urban impacted river systems. Nitrous Oxide 64-67 NBL1, DAN family BMP antagonist Homo sapiens 55-58 25752934-7 2015 We estimate that a doubling of current median NO3 (-) concentrations would increase the global estuary water-air N2 O flux by about 0.45 Tg N2 O-N yr(-1) or about 190%. Nitrous Oxide 113-117 NBL1, DAN family BMP antagonist Homo sapiens 46-49 25273518-4 2015 Results showed the highest N2O emission (10.1 mg kg(-1) over 21 days) from the soil at pH 3.71 with 1000 mg kg(-1) NO3 (-) addition. Nitrous Oxide 27-30 NBL1, DAN family BMP antagonist Homo sapiens 115-118 25351391-0 2014 Isotopic analysis of N and O in NO3- by selective bacterial reduction to N2O for groundwater pollution. Nitrous Oxide 73-76 NBL1, DAN family BMP antagonist Homo sapiens 32-35 23480257-8 2013 Flooding with NO3- increased denitrification rate, net N2 O production and heterotrophic respiration, but a reduction in net CH4 production suggests inhibition of methanogenesis by NO3- or N2 O produced from denitrification. Nitrous Oxide 189-193 NBL1, DAN family BMP antagonist Homo sapiens 14-17 23480257-9 2013 Implications for management and policy are that warming and flood events may promote microbial interactions in soil between distinct microbial communities and increase denitrification of excess NO3- with N2 O production contributing to no more than 50% of increases in total GHG production. Nitrous Oxide 204-208 NBL1, DAN family BMP antagonist Homo sapiens 194-197 20307293-4 2010 In vivo N2O accumulation rates in the mouth depended on the presence of dental plaque and on salivary NO3- concentrations. Nitrous Oxide 8-11 NBL1, DAN family BMP antagonist Homo sapiens 102-105 21869515-7 2011 Modeled N2O fluxes (16-30 mug m(-2) h(-1)) from five sites were strongly related to river NO3-N concentrations ( r2 = 0.86). Nitrous Oxide 8-11 NBL1, DAN family BMP antagonist Homo sapiens 90-93 19556054-11 2009 The effect of denitrification is further supported as mean groundwater NO3-N was significantly (P<0.05) related to groundwater N2/Ar ratio, redox potential (Eh), dissolved O2 and N2 and was close to being significant with N2O (P=0.08). Nitrous Oxide 225-228 NBL1, DAN family BMP antagonist Homo sapiens 71-74