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The importance of Dissimilatory Nitrate reduction to ammonium (DNra) in the Nitrogen cycle of coastal ecosystems
Dissimilatory Nitrate Nitrogen cycle
2015/7/16
Until recently, it was believed that biological assimilation and gaseous nitrogen (N) loss through denitrification were the two major fates of nitrate entering or produced within most coastal ecosyste...
Nitrate uptake by foraminifera and use in conjunction with endobionts under anoxic conditions
endobionts anoxic conditions
2014/11/28
Among eukaryotes, some benthic foraminiferal species have been reported to be capable of nitrate respiration,
although little is known about their denitrification processes. In this study, we incubat...
Nitrate uptake by foraminifera and use in conjunction with endobionts under anoxic conditions
Nitrate uptake foraminifera endobionts anoxic conditions
2014/10/16
Among eukaryotes, some benthic foraminiferal species have been reported to be capable of nitrate respiration, although little is known about their denitrification processes. In this study, we incubate...
Nitrogen fixation and dissimilatory nitrate reduction to ammonium (DNRA) support nitrogen dynamics in Texas estuaries
Nitrogen fi xation dissimilatory nitrate
2014/4/30
We conducted continuous-flow experiments on intact sediment cores from Laguna Madre, Sabine Lake, East
Matagorda Bay, and Nueces Estuary to evaluate internal nitrogen (N) sources, sinks, and re...
Nitrate–nitrite dynamics and phytoplankton growth: Formulation and experimental evaluation of a dynamic model
Nitrate–nitrite dynamics phytoplankton growth Formulation and experimental evaluation dynamic model
2014/4/4
A multi-nutrient quota model was modified to describe the coupled dynamics of nitrate and nitrite utilization for four phytoplankton species, Picochlorum atomus (Butcher) (Chlorophyta), Nannochloropsi...
Oxygen isotopic composition of nitrate and nitrite produced by nitrifying cocultures and natural marine assemblages
Oxygen isotopic composition of nitrate nitrite produced nitrifying cocultures natural marine assemblages
2014/4/4
The δ18O value of nitrate produced during nitrification (δ18ONO3,nit) was measured in experiments designed to mimic oceanic conditions, involving cocultures of ammonia-oxidizing bacteria or ammonia-ox...
Characterization of the key pathways of dissimilatory nitrate reduction and their response to complex organic substrates in hyporheic sediments
Characterization of the key pathways dissimilatory nitrate reduction their response to complex organic substrates hyporheic sediments
2014/4/4
Laboratory incubations with river-bed sediment collected from riffles and pools were used to quantify potential pathways of dissimilatory nitrate reduction in the hyporheic zone of a groundwater-fed r...
Oxygen isotopic composition of nitrate and nitrite produced by nitrifying cocultures and natural marine assemblages
Oxygen isotopic composition nitrate nitrite produced nitrifying cocultures natural marine assemblages
2014/4/3
Thed18 O value of nitrate produced during nitrification (d18ONO3,nit) was measured in experiments designed to mimic oceanic conditions, involving cocultures of ammonia-oxidizing bacteria or ammonia-ox...
Nitrate–nitrite dynamics and phytoplankton growth: Formulation and experimental evaluation of a dynamic model
Nitrate–nitrite dynamics phytoplankton growth Formulation experimental evaluation a dynamic model
2014/4/3
A multi-nutrient quota model was modified to describe the coupled dynamics of nitrate and nitrite utilization for four phytoplankton species, Picochlorum atomus(Butcher) (Chlorophyta), Nannochloropsis...
Characterization of the key pathways of dissimilatory nitrate reduction and their response to complex organic substrates in hyporheic sediments
Characterization the key pathways dissimilatory nitrate reduction their response complex organic substrates in hyporheic sediments
2014/4/2
Laboratory incubations with river-bed sediment collected from riffles and pools were used to quantify potential pathways of dissimilatory nitrate reduction in the hyporheic zone of a groundwater-fed r...
Importance of N2 fixation vs. nitrate eddy diffusion along a latitudinal transect in the Atlantic Ocean
the Atlantic Ocean nitrate eddy
2014/4/8
We present ocean, basin-scale simultaneous measurements of N2-fixation, nitrate diffusion, and primary
production along a south–north transect in the Atlantic Ocean crossing three biogeographic provi...
Comparative effects of urea, ammonium, and nitrate on phytoplankton abundance, community composition, and toxicity in hypereutrophic freshwaters
Comparative effects of urea ammonium nitrate
2014/4/4
Dissolved nitrogen (N) as urea ([NH2
]2CO), nitrate (NO{
3
), and ammonium (NHz
4
) was added to naturally
phosphorus (P)-rich lake water (up to 175 mg P L21
) to test the hypotheses that pollu...
The effect of increased nitrate loading on nitrate reduction via denitrification and DNRA in salt marsh sediments
increased nitrate nitrate reduction via
2014/4/16
The effects of increased nitrogen loading on denitrification and dissimilatory nitrate reduction to ammonium
(DNRA) in marsh sediments were studied in permanently submerged subtidal creek sediments a...
Control of nitrous oxide emission from Chironomus plumosus larvae by nitrate and temperature
nitrate temperature nitrous oxide emission
2014/4/16
Aquatic invertebrates that ingest large numbers of bacteria produce substantial amounts of the greenhouse gas
N2O because of incomplete denitrification in their anoxic gut. We investigated the influe...
Simultaneous measurements of nitrate, oxygen, and carbon dioxide on oceanographic moorings: Observing the Redfield ratio in real time
nitrate oxygen carbon dioxide
2014/4/16
Autonomous observations of dissolved nitrate, oxygen, and total inorganic carbon (TCO2
, which is derived
from pCO2
and estimates of alkalinity) from sensors on the M1 and M2 moorings, off Monterey...