ライフサイエンスコーパス: denitrification

1 logical and biogeochemical processes such as denitrification.

2 ormation processes such as nitrification and denitrification.

3 nodules and symbiotic nitrogen fixation and denitrification.

4 n of nitrate, and (III) by a minor impact of denitrification.

5 only 1.1 g N m(-2) (0.4 to 2.8 g m(-2)) from denitrification.

6 hypothesized to drive changes in sedimentary denitrification.

7 le with nitrogen fixation, nitrification and denitrification.

8 rived samples showed the isotopic effects of denitrification.

9 e streamwater showed no isotopic evidence of denitrification.

10 ion of nitrogen and oxygen in nitrate during denitrification.

11 ur assumption that it mainly originated from denitrification.

12 ship characteristic of heterotrophic, marine denitrification.

13 y complicate source tracing during microbial denitrification.

14 of sinking organic matter via heterotrophic denitrification.

15 lly undergoes nitrogen removal via microbial denitrification.

16 r ability to predict N2O accumulation during denitrification.

17 tive reductants that can promote autotrophic denitrification.

18 e our ability to predict N2O accumulation in denitrification.

19 ast century, and parameters that account for denitrification.

20 es must be capable of donating electrons for denitrification.

21 important general side effect of biological denitrification.

22 tershed nitrogen (N) flux through uptake and denitrification.

23 through sediment microbial processes such as denitrification.

24 e partitioning of N flow through anammox and denitrification.

25 e atmosphere mainly via microbially mediated denitrification.

26 (15)N, low delta(18)O), variably affected by denitrification.

27 a certain type of nanomaterial on microbial denitrification.

28 portant reason for its negative influence on denitrification.

29 t greenhouse gas, nitrous oxide (N2 O) - and denitrification, a major nitrogen (N) loss pathway in co

30 t the N2 O production from nitrifier-induced denitrification, a potential significant source of N2 O

31 nera that are capable of oxidizing sulfur by denitrification, a process that was previously unnoticed

32 obacter shibae DFL12(T) generates energy via denitrification, a respiratory process in which nitric o

33 a was somewhat lower for anammox compared to denitrification across all treatments.

34 driving the potential for nitrification and denitrification across terrestrial ecosystems.

35 Anammox and denitrification activities were quantified by in situ (1

36 The potential N2O emissions, potential denitrification activity, and abundances of denitrifiers

37 The genomic potential for denitrification also correlated with palaeo-OMZ proxies,

38 Anaerobic methane oxidation coupled to denitrification, also known as "nitrate/nitrite-dependen

39 esses are central to all of the key steps of denitrification, an alternative form of respiration in w

40 n dissimilatory nitrate reduction, including denitrification, anaerobic ammonium oxidation and dissim

41 ts metabolic profile suggests a capacity for denitrification and a possible role in dolphin health.

42 ic and autotrophic N2-producing metabolisms (denitrification and anaerobic ammonia oxidation, respect

43 ctic exist that separate loss processes like denitrification and anaerobic ammonium oxidation (anammo

44 The temperature dependency of denitrification and anaerobic ammonium oxidation (anammo

45 tion ultimately leading to nitrogen loss via denitrification and anaerobic ammonium oxidation (anammo

46 en (N) by the microbially mediated processes denitrification and anaerobic ammonium oxidation (anammo

47 e determined by measuring potential rates of denitrification and anammox at 31 discrete temperatures

48 With a few exceptions, Topt and Ea of denitrification and anammox did not differ in Rhode Isla

49 determined whether temperature responses of denitrification and anammox differed in shelf and estuar

50 Both denitrification and anammox exhibited temperature respon

51 ns suggested that the energy favorability of denitrification and anammox plays a role in determining

52 The variable ratios between denitrification and anammox previously observed in the o

53 plemented by diazotrophy, whereas chemocline denitrification and anammox quantitatively consumed NO(3

54 Rates of denitrification and anammox were determined by quantifyi

55 udies have examined temperature responses of denitrification and anammox, previous work suggests that

56 ween the two major nitrogen removal pathways-denitrification and anammox-but the expected proportion

57 ralization to the nitrogen loss processes of denitrification and anammox.

58 ity structure or the temperature response of denitrification and anammox.

59 ixation and remineralization, to its loss by denitrification and anammox.

60 nitrite-rich oxygen minimum zones (OMZs) via denitrification and anammox.

61 The relative expression of genes involved in denitrification and dissimilatory nitrate reduction to a

62 ge could alter the activity of heterotrophic denitrification and lead to N2O accumulation during biol

63 ox activity in groundwater can rival that of denitrification and may need to be considered when asses

64 and xoxF2, in order to obtain insights into denitrification and methanol metabolism by this bacteriu

65 dicating effective subsurface N retention or denitrification and minimal impact of fertilizer or depo

66 therefore promoted anaerobic conditions for denitrification and N(2)O production.

67 y of micro-organisms, but the impact on soil denitrification and N2O production has rarely been repor

68 ely large range highlights the importance of denitrification and N2O reduction in both riparian gray

69 Although maxima for denitrification and nitrification occur at opposing ends

70 ions of NO from soils occur primarily during denitrification and nitrification, and N input rates are

71 nitrifier-induced denitrification (nitrifier denitrification and nitrification-coupled denitrificatio

72 nvestigate the effect of carbon additions on denitrification and other processes of the nitrogen cycl

73 emical processes that occur in lakes such as denitrification and primary production.

74 The isolate contains both the denitrification and ribulose 1,5-bisphosphate carboxylas

75 nia-oxidizing bacteria (AOB) (namely the AOB denitrification and the hydroxylamine pathways) and the

76 ree of these strains are capable of complete denitrification and three others are not.

77 rous oxide (N2 O), which is generated during denitrification and, in oxic soils, mainly by ammonia ox

78 but instead are largely catalysed by fungal denitrification and/or abiotic reactions (e.g., chemoden

79 er denitrification and nitrification-coupled denitrification) and heterotrophic denitrification in si

80 rient transformations such as nitrification, denitrification, and anammox.

81 ion, anaerobic ammonium oxidation (anammox), denitrification, and inorganic carbon fixation were diff

82 ontinuously due to volatilization, leaching, denitrification, and surface run-off.

83 from FeS oxidative dissolution, nitrite from denitrification, and U(VI) from nitrite-promoted U(IV) o

84 Gaseous losses of nitrogen to denitrification are especially poorly documented and are

85 (15)NNO3 from a trajectory of 1 expected for denitrification are explained by isotopic over-printing

86 necticut, oysters and clams in New York, and denitrification are not included.

87 This study provides strong evidence for co-denitrification as a major N2 production pathway, which

88 This work emphasizes the importance of denitrification as a selectable trait that may influence

89 In this study, we evaluate denitrification as an alternative microbial metabolism t

90 Heme d1 plays an important role in denitrification as the essential cofactor of the cytochr

91 In this study we compared potential denitrification [as denitrification enzyme activity (DEA

92 ion (propene to propylene oxide), wastewater denitrification, as components of biosensors, or possibl

93 ns conducive to NO3(-) removal via microbial denitrification, as well as anaerobic ammonium oxidation

94 toproducts derived from desulfonation and/or denitrification, as well as hydroxylation of photo-oxidi

95 ession and cell viability based methods, the denitrification assay was more sensitive and resulted in

96 level-driven variations in shallow sediment denitrification associated with the cyclic drowning and

97 ther stimulated by NH4(+), whereas nitrifier denitrification at low O2 levels was stimulated by NO2(-

98 proteins that are thought to be involved in denitrification because they are expressed during the re

99 plants, nor rule out the possibility of AOB denitrification being a potentially dominating pathway i

100 Because flooded paddy fields are efficient denitrification bioreactors that can achieve decontamina

101 Their annotation revealed genes for denitrification but not N2 -fixation.

102 gen loss from polar sediments is mediated by denitrification, but microorganisms mediating denitrific

103 e for nitrous oxide reduction that completes denitrification by currently unidentified community memb

104 e "leakage" during incomplete sulfide-driven denitrification by SUP05 Gammaproteobacteria is predicte

105 Basin are high, and attributed to incomplete denitrification by Thermus thermophilus and related bact

106 ough these transformations, otherwise costly denitrification can be combined with the synthesis of va

107 n loss on ecosystem N removal, we contrasted denitrification capacity in marsh and subtidal sediments

108 We found that, on average, denitrification capacity was 4 times higher in vegetated

109 involve anodic carbon oxidation and cathodic denitrification catalyzed by two electroactive biofilms

110 Both hydroxylamine oxidation and nitrifier denitrification contributed substantially to N2O accumul

111 Denitrification converts nitrate into nitrogenous gas an

112 ion and anammox, previous work suggests that denitrification could become more important than anammox

113 Chemolithotrophic denitrification coupled to pyrite oxidation is regarded

114 This use results from the process-oriented Denitrification-Decomposition (DNDC, modified version) m

115 xia since 1850 using a geochemical proxy for denitrification (delta(15)N) from multiple sediment core

116 sotopic fractionation trends associated with denitrification (Deltadelta(15)N/Deltadelta(18)O approxi

117 ever, we showed that the ratio of anammox to denitrification depends on the stoichiometry of OM suppl

118 led organisms are involved in the network of denitrification, dissimilatory nitrate reduction to ammo

119 Simulations support previous assertions that denitrification dominates over anammox in the central Ar

120 ook Experimental Forest indicating extensive denitrification during midsummer, when transient, perche

121 we estimated rates of inorganic N uptake and denitrification during snow melt, summer, and autumn, as

122 Although rates of both anammox and denitrification during the tracer tests were low, they w

123 m and no organic carbon was used to minimize denitrification effects.

124 dy we compared potential denitrification [as denitrification enzyme activity (DEA)] in five types of

125 Incorporating explicit representations of denitrification enzyme kinetics into biogeochemical mode

126 d revealed an important regulatory effect of denitrification enzyme kinetics on the accumulation of d

127 Pre-synthesized denitrification enzymes contributed 20, 13, 43, and 62%

128 HNO/M-NO(-)) coordination units are found in denitrification enzymes of the global nitrogen cycle, an

129 f E allows for activities of pre-synthesized denitrification enzymes to be differentiated from de nov

130 omass) and ecosystem functions (N2-fixation, denitrification, extracellular polymeric substances -EPS

131 ave potential implications for understanding denitrification flux in a range of agricultural environm

132 processes therefore compete with anammox and denitrification for ammonium and nitrite, thereby exerti

133 esumably also be used to detect N2 fluxes by denitrification from ecosystems to the atmosphere.

134 found that loss of norEF lowered the rate of denitrification from nitrate and resulted in accumulatio

135 omolar concentrations of nitric oxide during denitrification from nitrite.

136 equencing (NGS) to survey the diversity of a denitrification functional gene, nirS (encoding cytchrom

137 Wet Basins had higher proportions of denitrification genes and potential denitrification rate

138 We previously reported up-regulation of denitrification genes in P. stutzeri exposed to low conc

139 lta(15)N, the abundance of nitrification and denitrification genes, and metabolic quotient along the

140 ition for electrons among different steps of denitrification has previously been shown to occur, and

141 ver, in the literature the effects of CO2 on denitrification have mainly been attributed to the chang

142 ugh of synthetic NO3(-) subjected to partial denitrification (high delta(15)N, high delta(18)O); (3)

143 alized nitrogen management via nitrification-denitrification if fertilizer production offsets are tak

144 These results suggest that denitrification in an aged woodchip bioreactor at consta

145 Narasin also showed evidence of stimulating denitrification in anaerobic soils within 3 days of expo

146 ason, indicating sustained nitrification and denitrification in disturbed soils, representing a poten

147 g for modern recharge to reach well screens, denitrification in groundwater, or interception of recha

148 these measurements reveal the importance of denitrification in hydrologically disconnected patches o

149 etween two states: photic zone NO(3)(-) with denitrification in lower anoxic waters, and N(2)-fixatio

150 t the toxicity of CuO nanoparticles (NPs) to denitrification in marine sediments is highly affected b

151 The use of autotrophic denitrification in microbial fuel cells (MFCs) for water

152 hesis that anammox is more cold-adapted than denitrification in our study system.

153 (-2)) was emitted as N2 by the process of co-denitrification in pastoral soils over 123 days followin

154 enitrification, but microorganisms mediating denitrification in polar environments remain poorly char

155 higher N2 O yield under oxic conditions and denitrification in response to oxygen (O2 ) limitation.

156 Conversion of nitrate to N2 by denitrification in sediments accounts for half or more o

157 n-coupled denitrification) and heterotrophic denitrification in six soils (alkaline vs. acid soils).

158 ng between ammonification, nitrification and denitrification in stationary sand ripples, we combined

159 This may be in part because key drivers for denitrification, in particular soil carbon, are slow to

160 Results of recent modelling efforts imply denitrification-influenced waters, such as those in the

161 in, we developed a novel assay that measures denitrification inhibition in a model denitrifier, Parac

162 litter) and application method, biochar, or denitrification inhibitor.

163 Denitrification is a dominant nitrogen loss process in t

164 Fauna-enhanced denitrification is a potentially important but overlooke

165 Bacterial denitrification is a respiratory process that is a major

166 Chemolithoautotrophic denitrification is an important mechanism of nitrogen lo

167 Denitrification is an important pathway for nitrate tran

168 case of pyrite acting as reductant, however, denitrification is associated with the release of sulfat

169 The metabolic model of denitrification is based on dual-substrate utilization a

170 the importance of processes besides perhaps denitrification is difficult, due to a sparseness of dat

171 NO in the metabolism of AOA and suggest that denitrification is inconsequential for the energy metabo

172 , addition of organic carbon to perform post-denitrification is required to obtain total nitrogen rem

173 ese data indicate that coupled nitrification-denitrification is severely limited in permeable sedimen

174 Nitrifier denitrification is the conversion of nitrite to nitrous

175 Denitrification is the most uncertain component of the n

176 Denitrification is the only way to fully remove DIN from

177 vironmental predictors for nitrification and denitrification is thus pivotal in order to understand a

178 This process, which is distinct from denitrification, is active under aerobic conditions in t

179 eactive transport model was used to evaluate denitrification kinetics, which was observed in the micr

180 others; however, they resulted in incomplete denitrification, large proportion of dead bacteria in de

181 The model illustrates that denitrification largely prevented an elevated discharge

182 erm internal loading, while N may escape via denitrification, leading to perpetual N deficits.

183 NO3-) in respiration--through the process of denitrification--leading to the production of dinitrogen

184 Denitrification leads to the occurrence of phosphorus-be

185 ases in both states (5% of bottom area) plus denitrification losses showed increases to 10%-30% of an

186 . europaea demonstrated low electron flow to denitrification (</=1.2% of the total electron flow), ev

187 Formation of the denitrification machinery was found enhanced on the tran

188 re reduced until the alternative respiratory denitrification machinery was operative.

189 In this work, a new denitrification model is developed for wastewater treatm

190 A desorption-denitrification model was developed to describe bioregen

191 An enzyme-explicit denitrification model with representations for pre- and

192 competition is not recognized in the current denitrification models, limiting their ability to predic

193 Because of incomplete denitrification, N2O cycling rates are an order of magni

194 s including nitrification, nitrifier-induced denitrification (nitrifier denitrification and nitrifica

195 ilability of additional nitrite from partial denitrification (nitrite-loop) and the second one consis

196 d by gene conversion the complete gonococcal denitrification norB-aniA gene cassette, and strains gro

197 Nitrification and denitrification occupy different niches in the riverbed,

198 only in PN262000N21, while genes for partial denitrification occurred in both genomes.

199 ccupy different niches in the riverbed, with denitrification occurring across a broad chemical gradie

200 teps: (1) ammonium oxidation to nitrite; (2) denitrification of nitrite to nitrous oxide (N2O); and (

201 encoded by NMO genes catalyse the oxidative denitrification of nitroalkanes.

202 a flavin-dependent enzyme that catalyzes the denitrification of propionate 3-nitronate (P3N) and othe

203 of stream nitrate and coupled nitrification-denitrification of stream and/or sediment ammonium; and

204 n environment-specific combination of direct denitrification of stream nitrate and coupled nitrificat

205 nitrate from the spent resin and subsequent denitrification of the soluble nitrate.

206 lts suggest that anaerobic processes such as denitrification or anammox occur in these sponges in add

207 inputs versus storm drain exports implicated denitrification or leaching to groundwater as a likely f

208 lic modules are used for NOx detoxification, denitrification or other purposes.

209 that nitrate can be either consumed through denitrification or produced through nitrification, at a

210 say was reproducible and measured impacts on denitrification over 3 orders of magnitude exposure.

211 with possible links to ammonia-oxidization, denitrification, pathogenesis, and heavy-metal processin

212 he pathways considered include the nitrifier denitrification pathway (N2O as the final product of AOB

213 consumption and perhaps earlier steps in the denitrification pathway also.

214 a nitric oxide reductase are involved in the denitrification pathway and that the pathway must be ope

215 The results further revealed the AOB denitrification pathway decreased and the NH2OH oxidatio

216 titation of ATP levels demonstrates that the denitrification pathway employs inventory such as nitrat

217 ing for the first time the importance of the denitrification pathway in determining the fate of RDX-d

218 t evidence for potential N2O cycling via the denitrification pathway in the open Atlantic Ocean.

219 indicate that genetic inventory encoding the denitrification pathway is upregulated only upon availab

220 ng proteins that are involved in a truncated denitrification pathway or in the oxidative stress respo

221 differential expression of genes encoding a denitrification pathway previously unknown to methanotro

222 However, only the assimilatory branch of the denitrification pathway was essential for growth on meth

223 n genes predicted to encode functions of the denitrification pathway, as well as mutants with mutatio

224 with nitrite (NO2-), an intermediate in the denitrification pathway, can also result in production o

225 g the gene encoding the terminal step in the denitrification pathway, nitrous oxide reductase (nosZ).

226 n reaction (qPCR) of functional genes in the denitrification pathway.

227 AOB) via the hydroxylamine and the nitrifier denitrification pathways.

228 considered an intermediate or end-product in denitrification pathways.

229 e utilize continuous cultures to explore the denitrification phenotypes of P. denitrificans and A. xy

230 The denitrification phenotypes of Rhodobacter sphaeroides st

231 duced plant N uptake, resulting in high soil denitrification potential (P < 0.05).

232 Denitrification potential (pDNF) rates were also strongl

233 reased nitrification potential and increased denitrification potential affected N2 O fluxes under WTL

234 )N2 and (30)N2 production (isotope pairing), denitrification potential measurements (acetylene block)

235 in topsoil-amended plots, with increases in denitrification potential of 161.27% over control plots.

236 Denitrification potential, potential net nitrogen nitrif

237 ogen were the most significant predictors of denitrification potential.

238 Nitrification and denitrification processes are crucial to plant nutrient

239 Heme d1, a vital tetrapyrrol involved in the denitrification processes is synthesized from its precur

240 ss nitrogen (N) can best be achieved through denitrification processes that transform N in water and

241 Both abiotic and biotic denitrification processes use a single N source to form

242 re indicated neither canonical nor nitrifier-denitrification production while statistical modelling s

243 The denitrification products nitrous oxide (N2O) and dinitro

244 Failing to account for denitrification products, especially during summer rainf

245 ation enzyme kinetics on the accumulation of denitrification products.

246 at many locations where anammox is measured, denitrification rates are small or undetectable.

247 Accurate prediction of denitrification rates remains difficult, potentially owi

248 Denitrification rates were lower in organic and forest (

249 es (acetate and lactate) caused increases in denitrification rates, corroborating the hypothesis that

250 tions of denitrification genes and potential denitrification rates.

251 ology may enable more accurate prediction of denitrification rates.

252 factors, while the direct effects of CO2 on denitrification remain unknown.

253 al nitrogen transformation processes such as denitrification represent major sources of the potent gr

254 bute to the fine tuning of expression of the denitrification respirome and so adds to the understandi

255 The regulation of the denitrification respirome in strains deficient in the tr

256 Beyond that, in-stream denitrification seems to be more intense during periods

257 nitrification and simultaneous nitrification denitrification (SND) via nitrite was found to be the ma

258 on mineral and gaseous nitrogen dynamics and denitrification-specific functional marker gene abundanc

259 The relative ability of each denitrification step to compete for electrons is modeled

260 to oxygen-limited conditions, including all denitrification steps, ammonification, sulfate respirati

261 ad higher relative abundances of anammox and denitrification suggesting stronger nitrogen removal tha

262 Thaumarchaeota dominated dysoxic waters, and denitrification, sulfur oxidation, and inorganic carbon

263 Increases of 25 degrees C shifted denitrification temperature responses to mesophilic with

264 electron competition among the four steps of denitrification, through modeling the carbon oxidation a

265 S genes during nitrate flux, suggesting that denitrification to N2 and not facultative nitrate reduct

266 The importance of denitrification to NO3(-) removal was supported by the p

267 Overall, the contribution of denitrification to Nr removal in natural ecosystems was

268 ned the relative contribution of anammox and denitrification to overall nitrogen loss.

269 rated into each sequential reduction step of denitrification to regulate dynamics of the denitrifier

270 marsh: (1) retention in plants and soil, (2) denitrification to the atmosphere, and (3) tidal export.

271 %) and GHG (11-18%) emissions; nitrification-denitrification treatment decreased NH3 emissions, but i

272 During bacterial denitrification, two-electron reduction of N2O occurs at

273 ted the involvement of Comamonas biofilms in denitrification under bulk aerobic conditions and elucid

274 sly published empirical correlations showing denitrification velocity (N2 flux divided by nitrate con

275 The optimal temperature (Topt ) for denitrification was 25-27 degrees C, whereas anammox rat

276 The experiments showed that heterotrophic denitrification was a negligible source of N2O under oxi

277 The potential influence of denitrification was considered by incorporating associat

278 Variation in denitrification was driven by differences in soil respir

279 Denitrification was heterogeneous among stations and an

280 Furthermore, the denitrification was inferred from elevated delta(18)O an

281 In situ denitrification was measured monthly between April 2013

282 ly significant dose response curves in which denitrification was stimulated at some doses and inhibit

283 In acid soils, however, heterotrophic denitrification was the main source for N2 O production,

284 Denitrification was the rate-limiting process.

285 ions (up to 1 mmol/L) with evidence for some denitrification were detected in areas where effluent wa

286 Genes for ammonium oxidation and denitrification were detected, indicating the potential

287 sting that the enzymes relevant to nitrifier denitrification were inhibited.

288 e soils, nitrification and nitrifier-induced denitrification were the dominant pathways of N2 O produ

289 lands often remove nitrate via high rates of denitrification, wetlands restored for water quality fun

290 ons were low, but decreased in proportion to denitrification when acetate was added to increase avail

291 albeit to a lesser degree, was observed for denitrification, which also occurred in the columns.

292 ng a drop in pH that can lead to caries, and denitrification, which could inhibit several stages of d

293 d nitrite loads modulate N2O accumulation in denitrification, which may contribute to further design

294 er and water content), or their interaction (denitrification), while others were not affected (EPS).

295 ccumulating in the ecosystem or lost through denitrification will be difficult to determine, but the

296 ion pathway (N2O as the final product of AOB denitrification with NO2(-) as the terminal electron acc

297 itrite (NO(2)(-)) reduction (e.g., nitrifier denitrification), with a minor contribution from hydroxy

298 as in the range determined for heterotrophic denitrification, with only the absence of stirring resul

299 at NO3(-) removal was mainly attributable to denitrification within the diffuse biomat (i.e., 80 +/-

300 wed for new detailed insight into subsurface denitrification zones in complex permeable sediments.