Results 21 to 30 of about 20,026 (345)

Highly diverse nirK genes comprise two major clades that harbour ammonium-producing denitrifiers [PDF]

open access: yes, 2016
Background: Copper dependent nitrite reductase, NirK, catalyses the key step in denitrification, i.e. nitrite reduction to nitric oxide. Distinct structural NirK classes and phylogenetic clades of NirK-type denitrifiers have previously been observed ...
Decleyre, Helen   +3 more
core   +3 more sources

Cloning and nitrate induction of nitrate reductase mRNA [PDF]

open access: yesProceedings of the National Academy of Sciences, 1986
Nitrate is the major source of nitrogen taken from the soil by higher plants but requires reduction to ammonia prior to incorporation into amino acids. The first enzyme in the reducing pathway is a nitrate-inducible enzyme, nitrate reductase (EC 1.6.6.1).
C L, Cheng   +3 more
openaire   +2 more sources

Bacterial nitrate assimilation: gene distribution and regulation [PDF]

open access: yes, 2011
In the context of the global nitrogen cycle, the importance of inorganic nitrate for the nutrition and growth of marine and freshwater autotrophic phytoplankton has long been recognized.
Andrew J. Gates   +44 more
core   +1 more source

Bioaugmentation of UASB reactors with immobilized Sulfurospirillum barnesii for simultaneous selenate and nitrate removal [PDF]

open access: yes, 2009
Whole-cell immobilization of selenate-respiring Sulfurospirillum barnesii in polyacrylamide gels was investigated to allow the treatment of selenate contaminated (790¿µg Se¿×¿L-1) synthetic wastewater with a high molar excess of nitrate (1,500 times) and
Aelst, A.C., van   +4 more
core   +2 more sources

Exploring the Denitrification Proteome of Paracoccus denitrificans PD1222

open access: yesFrontiers in Microbiology, 2018
Denitrification is a respiratory process that produces nitrous oxide as an intermediate, which may escape to the atmosphere before its reduction to dinitrogen through the nitrous oxide reductase NosZ. In this work, the denitrification process carried out
Alfonso Olaya-Abril   +7 more
doaj   +1 more source

A Crp-dependent two-component system regulates nitrate and nitrite respiration in Shewanella oneidensis. [PDF]

open access: yesPLoS ONE, 2012
We have previously illustrated the nitrate/nitrite respiratory pathway of Shewanella oneidensis, which is renowned for its remarkable versatility in respiration.
Yangyang Dong   +5 more
doaj   +1 more source

A standardised method for measuring in situ denitrification in shallow aquifers: numerical validation and measurements in riparian wetlands [PDF]

open access: yes, 2003
A tracer test to examine in situ denitrification in shallow groundwater by a piezometer with a packer system used bromide as a tracer of dilution and acetylene (10%) to block the denitrification process at the nitrous oxide stage.
C. Bouey   +6 more
core   +3 more sources

Nitrous oxide production in soil isolates of nitrate-ammonifying bacteria [PDF]

open access: yes, 2012
Here we provide the first demonstration of the potential for N2O production by soil-isolated nitrate-ammonifying bacteria under different C and N availabilities, building on characterizations informed from model strains.
Bamford   +29 more
core   +2 more sources

Frequency of Tongue Cleaning Impacts the Human Tongue Microbiome Composition and Enterosalivary Circulation of Nitrate

open access: yesFrontiers in Cellular and Infection Microbiology, 2019
The oral microbiome has the potential to provide an important symbiotic function in human blood pressure physiology by contributing to the generation of nitric oxide (NO), an essential cardiovascular signaling molecule.
Gena D. Tribble   +16 more
doaj   +1 more source

Resolving the contributions of the membrane-bound and periplasmic nitrate reductase systems to nitric oxide and nitrous oxide production in Salmonella enterica serovar Typhimurium [PDF]

open access: yes, 2011
The production of cytotoxic nitric oxide (NO) and conversion into the neuropharmacological agent and potent greenhouse gas nitrous oxide (N2O) is linked with anoxic nitrate catabolism by Salmonella enterica serovar Typhimurium.
Anderson   +50 more
core   +1 more source

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