Results 131 to 140 of about 347,780 (327)

The ComEA/ComEC Operon is Critical for Nitrosative Stress Tolerance by an Oral Commensal

Molecular Oral Microbiology, EarlyView.
ABSTRACT Oral commensal streptococci play a large role in mediating microbial homeostasis. Our prior work has demonstrated that hydrogen peroxide (H2O2) produced by oral commensal streptococci can react with salivary nitrite (NO2) and generate peroxynitrite (ONOO−), a potent antimicrobial.
Sara E. Edmonds, Hernan Grenett, Priscilla Grenett, Jessica A. Scoffield   +3 more
wiley   +1 more source

Convergent Valorization via Scalable C═N Bond Electrosynthesis Through Metal‐Dopant Interfacial Engineering in a Flow Electrolyzer

Angewandte Chemie, Volume 138, Issue 20, 11 May 2026.
This study establishes an innovative approach to synthesize organonitrogens featuring C═N bonds efficiently using non‐precious metal‐doped MoS2 in a flow electrolyzer. Fe dopant significantly enhances Faradaic efficiency and yield rate, achieving over 81% and 2630 mmol h−1 g−1 for formaldoxime production. This platform upcycles pollutants into valuable
Ruijie Yi, Jiu Chen, Xiaoyong Mo, Tian Zeng, Jingtao Zhou, Fulai Liu, Shu‐Chih Haw, Yong Chen, Ruosong Li, Edmund C. M. Tse   +9 more
wiley   +2 more sources

The effect of ionic and non-ionic surfactants on the growth, nitrate reductase and nitrite reductase activities of Spirodela polyrrhiza (L.) Schleiden

Acta Societatis Botanicorum Poloniae, 2014
Inclusion into the medium of 5 mg•dm-3 of non-ionic (ENF) or ionic (DBST) surfactant caused 50-60% inhibition of nitrite reductase MR) activity in S. polyrrhiza.
Józef Buczek
doaj   +1 more source

Evidence that the degree of band 3 phosphorylation modulates human erythrocytes nitric oxide efflux – in vitro model of hyperfibrinogenemia [PDF]

, 2011
© 2011 – IOS Press and the authors. All rights reservedRecent evidence has shown that plasma fibrinogen, a major cardiovascular risk factor, interacts with the erythrocyte membrane and acts to influence blood flow via erythrocyte nitric oxide (NO ...
Almeida, J. P. Lopes de, Freitas-Santos, T., Saldanha, C.   +2 more
core   +1 more source

Calcium and Nitrogen Availability Controls Root Exudation in Hydroponically Cultured Barley

Plant, Cell &Environment, EarlyView.
ABSTRACT Root exudation is a key component of plant‐rhizosphere interactome. It is increasingly evident that root exudates influence rhizospheric microbial communities and in turn can benefit plants through improved resource allocation. However, how suboptimal nutrient availability relates to control of root exudation is poorly understood.
Ibadete Denjali, Vijay Kumar, Joana Janzen, Marcus Persicke, László Cselényi, Refat Abdel‐Basset, Karl‐Josef Dietz   +6 more
wiley   +1 more source

Effects of FACE on denitrification activity in paddy-field soil

浙江大学学报. 农业与生命科学版, 2007
A free-air CO2 enrichment (FACE) experiment was used to investigate the effects of elevated atmospheric CO2 concentration on soil denitrification activities. The FACE system was conducted under a rice/wheat rotation at Jiangdu, China.
WANG Shu-yi, HAN Lin, SHI Yi, MEI Bao-lin, ZHU Jian-guo   +4 more
doaj   +1 more source

Nitric oxide production by the human intestinal microbiota by dissimilatory nitrate reduction to ammonium [PDF]

, 2009
The free radical nitric oxide (NO) is an important signaling molecule in the gastrointestinal tract. Besides eukaryotic cells, gut microorganisms are also capable of producing NO. However, the exact mechanism of NO production by the gut microorganisms is
Vermeiren, Joan, Van de Wiele, Tom, Verstraete, Willy, Boeckx, Pascal, Boon, Nico   +4 more
core   +2 more sources

Establishment of a Purge and Trap Continuous‐Flow Isotope Ratio Mass Spectrometer System for Analysis of Stable Nitrate Isotopes (δ15N and δ18O) in Water Samples by Ti(III) Reduction

Rapid Communications in Mass Spectrometry, Volume 40, Issue 14, 30 July 2026.
ABSTRACT Rationale Pollution of surface and shallow groundwater by nitrate (NO3−$$ {\mathrm{NO}}_3^{-} $$) is a global concern, resulting in the deterioration of drinking water quality. Stable isotopes of NO3−$$ {\mathrm{NO}}_3^{-} $$ (δ15N and δ18O) can be used to trace its sources and identify prevailing biogeochemical processes.
Monis Nolitha Gcakasi, Christine Stumpp, Andrea Watzinger   +2 more
wiley   +1 more source

Sensing Nitrite through a Pseudoazurin–Nitrite Reductase Electron Transfer Relay

ChemPhysChem, 2005
AbstractNitrite is converted to nitric oxide by haem or copper‐containing enzymes in denitrifying bacteria during the process of denitrification. In designing an efficient biosensor, this enzymic turnover must be quantitatively assessed. The enzyme nitrite reductase from Alcaligenes faecalis contains a redox‐active blue copper centre and a nonblue ...
Astier, Y., Canters, G.W., Davis, J.J., Hill, H.A.O., Verbeet, M.P., Wijma, H.J.   +5 more
openaire   +3 more sources

Optimizing Carbon Sources in Biofloc Technology for Sustainable Aquaculture: A Meta‐Analytical Review

Aquaculture, Fish and Fisheries, Volume 6, Issue 3, June 2026.
ABSTRACT Aquaculture intensification is increasingly constrained by high water demand, nutrient‐rich effluents and disease risk, increasing interest in biofloc technology (BFT) as a waste‐recycling, low‐exchange production model. However, BFT performance depends strongly on the carbon source used to adjust the carbon‐to‐nitrogen (C/N) ratio and ...
Mavindu Muthoka, Esther Magondu, Markose Zewdie, Douglas Okemwa, Domitila Kyule, Jonathan Munguti, Erick Ogello   +6 more
wiley   +1 more source