Vertical decoupling of nitrate assimilation and nitrification in the Sargasso Sea

[1]  C. Reason,et al.  Isotopic evidence for nitrification in the Antarctic winter mixed layer , 2015 .

[2]  Michael W. Lomas,et al.  Global-scale variations of the ratios of carbon to phosphorus in exported marine organic matter , 2014 .

[3]  Michael W. Lomas,et al.  Impact of ocean phytoplankton diversity on phosphate uptake , 2014, Proceedings of the National Academy of Sciences.

[4]  F. Chavez,et al.  Ammonium Uptake by Phytoplankton Regulates Nitrification in the Sunlit Ocean , 2014, PloS one.

[5]  M. Lomas,et al.  Nitrogen isotopic response of prokaryotic and eukaryotic phytoplankton to nitrate availability in Sargasso Sea surface waters , 2014 .

[6]  M. Lomas,et al.  The counterintuitive effect of summer‐to‐fall mixed layer deepening on eukaryotic new production in the Sargasso Sea , 2014 .

[7]  J. Tison,et al.  New insights into sea ice nitrogen biogeochemical dynamics from the nitrogen isotopes , 2014 .

[8]  G. Gong,et al.  Concentration dependent nitrogen isotope fractionation during ammonium uptake by phytoplankton under an algal bloom condition in the Danshuei estuary, northern Taiwan , 2013 .

[9]  D. Sigman,et al.  Coupled nitrate nitrogen and oxygen isotopes and organic matter remineralization in the Southern and Pacific Oceans , 2013 .

[10]  M. Lomas,et al.  Two decades and counting: 24-years of sustained open ocean biogeochemical measurements in the Sargasso Sea , 2013 .

[11]  B. Ward,et al.  Depth distribution of ammonia oxidation rates and ammonia‐oxidizer community composition in the Sargasso Sea , 2013 .

[12]  J. Hayes,et al.  Mechanism for nitrogen isotope fractionation during ammonium assimilation by Escherichia coli K12 , 2013, Proceedings of the National Academy of Sciences.

[13]  M. McIlvin,et al.  Oxygen isotopic composition of nitrate and nitrite produced by nitrifying cocultures and natural marine assemblages , 2012 .

[14]  D. Sigman,et al.  Eukaryotic assimilatory nitrate reductase fractionates N and O isotopes with a ratio near unity. , 2012, Environmental science & technology.

[15]  M. Lomas,et al.  Assimilation of upwelled nitrate by small eukaryotes in the Sargasso Sea , 2011 .

[16]  D. Sigman,et al.  N and O isotope effects during nitrate assimilation by unicellular prokaryotic and eukaryotic plankton cultures , 2010 .

[17]  D. Sigman,et al.  Removal of nitrite with sulfamic acid for nitrate N and O isotope analysis with the denitrifier method. , 2009, Rapid communications in mass spectrometry : RCM.

[18]  D. Sigman,et al.  The dual isotopes of deep nitrate as a constraint on the cycle and budget of oceanic fixed nitrogen , 2009 .

[19]  D. M. Nelson,et al.  Biogeochemical responses to late-winter storms in the Sargasso Sea, I — Pulses of primary and new production , 2009 .

[20]  D. Sigman,et al.  Nitrate isotopic composition between Bermuda and Puerto Rico: Implications for N2 fixation in the Atlantic Ocean , 2008 .

[21]  Ian Joint,et al.  Ammonium regeneration and nitrification rates in the oligotrophic Atlantic Ocean: Implications for new production estimates , 2007 .

[22]  M. McIlvin,et al.  Isotopic analyses of nitrate and nitrite from reference mixtures and application to Eastern Tropical North Pacific waters , 2007 .

[23]  Adrian P. Martin,et al.  The significance of nitrification for oceanic new production , 2007, Nature.

[24]  F. Chavez,et al.  Nitrification in the euphotic zone as evidenced by nitrate dual isotopic composition: Observations from Monterey Bay, California , 2007 .

[25]  M. Lomas,et al.  Prochlorococcus contributes to new production in the Sargasso Sea deep chlorophyll maximum , 2007 .

[26]  J. Böhlke,et al.  Oxygen isotopes in nitrite: analysis, calibration, and equilibration. , 2007, Analytical chemistry.

[27]  A. P. Martin,et al.  New primary production and nitrification in the western subtropical North Atlantic: A modeling study , 2006 .

[28]  M. Lomas,et al.  Forming the primary nitrite maximum: Nitrifiers or phytoplankton? , 2006 .

[29]  D. Sigman,et al.  A method for nitrite removal in nitrate N and O isotope analyses , 2006 .

[30]  Gavin A. Schmidt,et al.  Global gridded data set of the oxygen isotopic composition in seawater , 2006 .

[31]  D. Karl,et al.  On the relationships between primary, net community, and export production in subtropical gyres , 2006 .

[32]  D. Sigman,et al.  Coupled nitrogen and oxygen isotope measurements of nitrate along the eastern North Pacific margin , 2005 .

[33]  M. Könneke,et al.  Isolation of an autotrophic ammonia-oxidizing marine archaeon , 2005, Nature.

[34]  B. Ward Temporal variability in nitrification rates and related biogeochemical factors in Monterey Bay, California, USA , 2005 .

[35]  D. Sigman,et al.  N isotopic composition of dissolved organic nitrogen and nitrate at the Bermuda Atlantic Time‐series Study site , 2005 .

[36]  D. Sigman,et al.  Coupled nitrogen and oxygen isotope fractionation of nitrate during assimilation by cultures of marine phytoplankton , 2004 .

[37]  D. Sigman,et al.  Linking Diversity and Stable Isotope Fractionation in Ammonia-Oxidizing Bacteria , 2002 .

[38]  D. Sigman,et al.  Measurement of the oxygen isotopic composition of nitrate in seawater and freshwater using the denitrifier method. , 2002, Analytical chemistry.

[39]  C. Barford,et al.  A bacterial method for the nitrogen isotopic analysis of nitrate in seawater and freshwater. , 2001, Analytical chemistry.

[40]  Eelco J. Rohling,et al.  An oxygen isotope data set for marine waters , 2000 .

[41]  D. Sigman,et al.  The δ15N of nitrate in the southern ocean: Consumption of nitrate in surface waters , 1999 .

[42]  C. D. Keeling,et al.  Carbon-13 constraints on the seasonal inorganic carbon budget at the BATS site in the northwestern Sargasso Sea , 1998 .

[43]  D. Karl,et al.  Nitrification in the euphotic zone as a source for nitrite, nitrate, and nitrous oxide at Station ALOHA , 1996 .

[44]  Jones Rd,et al.  Photoinhibition of marine nitrifying bacteria. II. Dark recovery after monochromatic or polychromatic irradiation , 1996 .

[45]  Guerrero Ma,et al.  Photoinhibition of marine nitrifying bacteria. I. Wavelength-dependent response , 1996 .

[46]  J. Sharp,et al.  Isotopic fractionation of ammonium and nitrate during uptake by Skeletonema costatum: Implications for δ15N dynamics under bloom conditions , 1996 .

[47]  David A. Siegel,et al.  Seasonal variability of light availability and utilization in the Sargasso Sea , 1995 .

[48]  C. Carlson,et al.  Carbon-cycle imbalances in the Sargasso Sea , 1994, Nature.

[49]  David L. Kirchman,et al.  Isotope fractionation associated with ammonium uptake by a marine bacterium , 1992 .

[50]  R. Braman,et al.  Nanogram nitrite and nitrate determination in environmental and biological materials by vanadium (III) reduction with chemiluminescence detection. , 1989, Analytical chemistry.

[51]  R. Eppley,et al.  Biological nitrogen cycling in the nitracline , 1989 .

[52]  M. Altabet Variations in nitrogen isotopic composition between sinking and suspended particles: implications for nitrogen cycling and particle transformation in the open ocean , 1988 .

[53]  M. Minagawa,et al.  Nitrogen isotope ratios of red tide organisms in the East China Sea: A characterization of biological nitrogen fixation , 1986 .

[54]  B. Osborne,et al.  Light and Photosynthesis in Aquatic Ecosystems. , 1985 .

[55]  B. Ward Light and substrate concentration relationships with marine ammonium assimilation and oxidation rates , 1985 .

[56]  H. Glover The relationship between inorganic nitrogen oxidation and organic carbon production in batch and chemostat cultures of marine nitrifying bacteria , 1985, Archives of Microbiology.

[57]  W. Broecker Ocean chemistry during glacial time , 1982 .

[58]  C. Garside A chemiluminescent technique for the determination of nanomolar concentrations of nitrate and nitrite in seawater , 1982 .

[59]  B. Peterson,et al.  Particulate organic matter flux and planktonic new production in the deep ocean , 1979, Nature.

[60]  A. Hooper,et al.  Photoinactivation of Ammonia Oxidation in Nitrosomonas , 1974, Journal of bacteriology.

[61]  J. Goering,et al.  UPTAKE OF NEW AND REGENERATED FORMS OF NITROGEN IN PRIMARY PRODUCTIVITY1 , 1967 .

[62]  C. Sweeney,et al.  Global sea-air CO2 flux based on climatological surface ocean pCO2, and seasonal biological and temperature effects , 2002 .

[63]  F. Lipschultz A time-series assessment of the nitrogen cycle at BATS , 2001 .

[64]  Nicholas R. Bates,et al.  Overview of the US JGOFS Bermuda Atlantic Time-series Study (BATS): a decade-scale look at ocean biology and biogeochemistry , 2001 .

[65]  Sallie W. Chisholm,et al.  Phytoplankton population dynamics at the Bermuda Atlantic Time-series station in the Sargasso Sea , 2001 .

[66]  E. Carpenter,et al.  Biogeochemical tracers of the marine cyanobacterium Trichodesmium , 1997 .

[67]  B. Irwin,et al.  The kinetics of nitrogen utilization in the oceanic mixed layer: Nitrate and ammonium interactions at nanomolar concentrations , 1996 .

[68]  A. Knap,et al.  Seasonal and interannual variability of oceanic carbon dioxide species at the U.S. JGOFS Bermuda Atlantic Time-series Study (BATS) site , 1996 .

[69]  Q. Dortch,et al.  The interaction between ammonium and nitrate uptake in phytoplankton , 1990 .

[70]  W. Broecker Glacial to interglacial changes in ocean chemistry , 1982 .

[71]  R. Olson,et al.  DIFFERENTIAL PHOTOINHIBITION OF MARINE NITRIFYING BACTERIA: A POSSIBLE MECHANISM FOR THE FORMATION OF THE PRIMARY NITRITE MAXIMUM , 1981 .

[72]  W. Eitaro,et al.  Nitrogen isotope effects in the assimilation of inorganic nitrogenous compounds by marine diatoms , 1978 .

[73]  G. Billen Evaluation of Nitrifying Activity in Sediments by Dark 14C-Bicarbonate Incorporation , 1976 .

[74]  T. Parsons,et al.  A practical handbook of seawater analysis , 1968 .

[75]  J. Ryther,et al.  The annual cycle of primary production in the Sargasso Sea off Bermuda , 1959 .