Results 11 to 20 of about 103,217 (297)

Nitrite-driven anaerobic ethane oxidation

open access: yesEnvironmental Science and Ecotechnology
Ethane, the second most abundant gaseous hydrocarbon in vast anoxic environments, is an overlooked greenhouse gas. Microbial anaerobic oxidation of ethane can be driven by available electron acceptors such as sulfate and nitrate. However, despite nitrite
Cheng-Cheng Dang   +8 more
doaj   +4 more sources

Dependence of nitrite oxidation on nitrite and oxygen in low‐oxygen seawater [PDF]

open access: yesGeophysical Research Letters, 2017
AbstractNitrite oxidation is an essential step in transformations of fixed nitrogen. The physiology of nitrite oxidizing bacteria (NOB) implies that the rates of nitrite oxidation should be controlled by concentration of their substrate, nitrite, and the terminal electron acceptor, oxygen.
Xin Sun   +3 more
openaire   +4 more sources

Nitrite-driven anaerobic methane oxidation by oxygenic bacteria [PDF]

open access: yesNature, 2010
Only three biological pathways are known to produce oxygen: photosynthesis, chlorate respiration and the detoxification of reactive oxygen species. Here we present evidence for a fourth pathway, possibly of considerable geochemical and evolutionary importance. The pathway was discovered after metagenomic sequencing of an enrichment culture that couples
Ettwig, K.F.   +23 more
openaire   +9 more sources

Evaluating nitrite oxidizing organism survival under different nitrite concentrations [PDF]

open access: yesWater Science and Technology, 2020
Abstract The objective of this study is to explore the optimal pre-treatment procedures and statistics methods for live/dead bacterial staining using nitrite oxidizing organism (NOO) as the research aim. This staining method was developed and widely utilized to evaluate activated bacterial survival situation, because it is direct and ...
Bing, Liu   +8 more
openaire   +2 more sources

Nitrite-oxidizing bacteria adapted to low-oxygen conditions dominate nitrite oxidation in marine oxygen minimum zones. [PDF]

open access: yesISME J
Abstract Nitrite is a central molecule in the nitrogen cycle because nitrite oxidation to nitrate (an aerobic process) retains fixed nitrogen in a system and its reduction to dinitrogen gas (anaerobic) reduces the fixed nitrogen inventory.
Fortin SG, Sun X, Jayakumar A, Ward BB.
europepmc   +3 more sources

Nitric oxide preferentially inhibits nitrite oxidizing communities with high affinity for nitrite [PDF]

open access: yesJournal of Biotechnology, 2015
The prerequisite to the development success of the novel mainstream processes partial nitritation/anammox is the out-selection of nitrite oxidizing bacteria (NOB). A recent study suggested that this could be achieved through NO production by ammonium oxidizing bacteria under cyclic oxic-anoxic conditions. Indeed, it is known that among NOB, Nitrobacter
Courtens, Emilie   +6 more
openaire   +2 more sources

Nitrite-oxidizing activity responds to nitrite accumulation in soil [PDF]

open access: yesFEMS Microbiology Ecology, 2018
The factors influencing how soil nitrite (NO2-)- and ammonia (NH3)-oxidizing activities remain coupled are unknown. A short-term study (
Andrew T, Giguere   +5 more
openaire   +2 more sources

Ammonium and nitrite oxidation at nanomolar oxygen concentrations in oxygen minimum zone waters. [PDF]

open access: yesProc Natl Acad Sci U S A, 2016
Bristow LA   +10 more
europepmc   +2 more sources

Effect of pH and nitrite concentration on nitrite oxidation rate [PDF]

open access: yesBioresource Technology, 2011
The effect of pH and nitrite concentration on the activity of the nitrite oxidizing bacteria (NOB) in an activated sludge reactor has been determined by means of laboratory batch experiments based on respirometric techniques. The bacterial activity was measured at different pH and at different total nitrite concentrations (TNO₂).
Jiménez Douglas, Emérita   +4 more
openaire   +4 more sources

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