Results 61 to 70 of about 5,332 (201)

Ratio of natural isotopes of nitrogen. I. Primary results: soils of Dombes [Translation from: Revue d'Ecologie et de Biologie du Sol 14, 279-287, 1977] [PDF]

open access: yes, 1980
Utilization of the heavy isotope of nitrogen as a tracer has found numerous applications in soil biology. It allows better definition of different stages of the nitrogen cycle, in particular the immobilization-mineralization cycle.
Chalamet, A.   +2 more
core  

Effects of engineered silver nanoparticles on the growth and activity of ecologically important microbes [PDF]

open access: yes, 2014
Summary: Currently, little is known about the impact of silver nanoparticles (AgNPs) on ecologically important microorganisms such as ammonia-oxidizing bacteria (AOB).
Beddow, Jessica   +7 more
core   +1 more source

Strategies of Nitrosomonas europaea 19718 to counter low dissolved oxygen and high nitrite concentrations

open access: yesBMC Microbiology, 2010
Background Nitrosomonas europaea is a widely studied chemolithoautotrophic ammonia oxidizing bacterium. While significant work exists on the ammonia oxidation pathway of N.
Chandran Kartik, Yu Ran
doaj   +1 more source

A mathematical model of bacteria capable of complete oxidation of ammonium predicts improved nitrogen removal and reduced production of nitrous oxide [PDF]

open access: yes, 2017
The removal of excess nutrients from water ecosystems requires oxidation of toxic ammonium by two types of bacteria; one oxidizes ammonium to nitrite and the other oxidizes nitrite to nitrate.
Ebenhöh, Oliver, Pokhilko, Alexandra
core  

Comparative analysis of ammonia monooxygenase (amoA) genes in the water column and sediment-water interface of two lakes and the Baltic Sea [PDF]

open access: yes, 2008
The functional gene amoA was used to compare the diversity of ammonia-oxidizing bacteria (AOB) in the water column and sediment-water interface of the two freshwater lakes Plusssee and Schöhsee and the Baltic Sea.
Aakra   +57 more
core   +2 more sources

SmallTalk: a novel small‐sized fusion tag for peptide expression and purification

open access: yesFEBS Open Bio, Volume 16, Issue 3, Page 461-473, March 2026.
The SmallTalk fusion tag allows for the efficient expression and purification of soluble recombinant proteins or peptides in Escherichia coli. Testing with SmallTalk‐GFP confirmed that the proteins were soluble and folded correctly, while SmallTalk‐Bin1b maintained its antimicrobial activity against various bacterial isolates. This streamlined workflow
Atika Tariq   +3 more
wiley   +1 more source

Triclosan biodegradation performance of adapted mixed cultures in batch and continuous operating systems at high-concentration levels

open access: yesCleaner Engineering and Technology, 2021
Pollutants like triclosan (TCS) of medium to high logKow value tend to be mainly adsorbed and poorly biodegraded during waste water treatment, complicating removal after release.
Yen Lin Leong   +5 more
doaj   +1 more source

Hydrazine Synthase From Anammox Is Inhibited by Linear and Aromatic Alkynes

open access: yesEnvironmental Microbiology, Volume 28, Issue 3, March 2026.
Linear and aromatic alkynes inhibit anammox in culture and in wetlands. The inhibition by alkynes is specific to the hydrazine synthase, a key enzyme in the anammox pathway. ABSTRACT N2O emissions by nitrifiers are often estimated using selective inhibitors, such as 1‐alkynes.
Cerys Maryan   +7 more
wiley   +1 more source

Model Investigation of Nitrification Inhibitor Effects on Nitrous Oxide Emissions From Manure Hotspots

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 2, February 2026.
Abstract Manure application to cropland stimulates soil nitrogen transformations, and the uneven distribution of manure in the soil creates organic hotspots, which may cause extended pulses of nitrous oxide (N2O) and di‐nitrogen (N2) emissions. Amending liquid manure (slurry) with a nitrification inhibitor (NI) can reduce N2O emissions, but the ...
Jie Zhang, Søren O. Petersen
wiley   +1 more source

Recent Progress in CO2 Conversion: An Overview of Catalytic Strategies for Sustainable Fuel and Chemical Synthesis

open access: yesSmartMat, Volume 6, Issue 6, December 2025.
This review systematically outlines recent advances in the catalytic strategies for converting CO₂ into valuable products, including photocatalysis, electrocatalysis, CO2 hydrogenation, photothermal catalysis, non‐thermal plasma, and biocatalytic processes.
An Zhang   +68 more
wiley   +1 more source

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