Results 71 to 80 of about 25,172 (194)

Nitrate ammonification by Nautilia profundicola AmH: experimental evidence consistent with a free hydroxylamine intermediate.

Frontiers in Microbiology, 2013
The process of nitrate reduction via nitrite controls the fate and bioavailability of mineral nitrogen within ecosystems; i.e. whether it is retained as ammonium (ammonification) or lost as nitrous oxide or dinitrogen (denitrification). Here, we present
Thomas E Hanson, Thomas E Hanson, Thomas E Hanson, Barbara J Campbell, Katie M. Kalis, Mark A. Campbell, Martin G Klotz   +6 more
doaj   +1 more source

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

Multiplexed Nanosensors for Real‐Time Monitoring of VOC‐Mediated Signalling Response in Plants

Plant, Cell &Environment, EarlyView.
ABSTRACT To enhance crop performance, intercropping strategies leverage volatile organic compound (VOC)‐driven interactions with companion plants that constitutively emit VOCs. Despite the agricultural importance, the mechanisms and kinetics of VOC‐mediated sensory transduction in receiver plants eavesdropping on neighbouring non‐kin emitters remain ...
Mervin Chun‐Yi Ang, Jolly Madathiparambil Saju, Sayyid Mohaideen, Niha Dhar, Sarangapani Sreelatha, Sayuj Koyyappurath, Thomas K. Porter, Gabriel Sánchez‐Velázquez, Vaishnavi Reddy Amarr, Song Wang, Duc Thinh Khong, Suh In Loh, Michael S. Strano, Sarojam Rajani   +13 more
wiley   +1 more source

Seasonal variation in denitrification and dissimilatory nitrate reduction to ammonia process rates and corresponding key functional genes along an estuarine nitrate gradient

Frontiers in Microbiology, 2015
This research investigated spatial-temporal variation in benthic bacterial community structure, rates of denitrification and dissimilatory nitrate reduction to ammonium (DNRA) processes and abundances of corresponding genes and transcripts at three sites
Cindy J Smith, Cindy J Smith, Liang F Dong, John eWilson, Andrew eStott, Andrew Mark Osborn, Andrew Mark Osborn, Andrew Mark Osborn, David B Nedwell   +8 more
doaj   +1 more source

Born early, age fast: Consequences of premature birth on chronic disease and accelerated ageing

The Journal of Physiology, EarlyView.
Abstract figure legend ELGANs are exposed to several postnatal pro‐oxidant stressors, including ambient and supplemental oxygen, mechanical ventilation, infections, hyperalimentation, excessive glucocorticoids and intermittent hypoxia. Since endogenous antioxidant defences are underdeveloped, this imbalance promotes oxidative stress and inflammation ...
Estelle B. Gauda, Julijana Ivanovska, Dwayne Mascarenhas, Jeffrey Antwi, Atefeh Mohammadi, Bonny Jasani   +5 more
wiley   +1 more source

Plant‐Derived Probiotics From Fermented Foods: Current Evidence on Antiviral Mechanisms and Gut–Lung Axis Modulation

Food Frontiers, Volume 7, Issue 6, November 2026.
Plant‐derived probiotics from fermented foods exert anti‐respiratory virus effects via immune regulation, antiviral metabolites, and gut–lung axis, highlighting their advantages, key technologies, and application prospects. ABSTRACT Respiratory viral infections represent a major global public health threat, causing widespread morbidity, mortality, and ...
Yinghao Xing, Yaoyuan Hu, Yingying Ma, Peng Yao, Jingjing Jiang, Jiao Guo, Shuangmei Liu   +6 more
wiley   +1 more source

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

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

Subchronic Exposure to Arsenic and Nickel Triggers Nitrosative Stress and Histological Alterations in the Rat Liver

Journal of Applied Toxicology, Volume 46, Issue 11, Page 3868-3881, November 2026.
ABSTRACT Environmental exposure to heavy metals poses a threat to human health. Several studies documented harmful effects on the liver after arsenic and nickel exposure at concentrations beyond permissible limits. Nevertheless, the impact of a simultaneous exposure to both elements on hepatic biochemistry and histology remains unelucidated. Therefore,
Thainá Iasbik‐Lima, Luiz Otávio Guimarães‐Ervilha, Isabela Pereira da Silva Bento, Renê Chagas da Silva, Mariana Machado‐Neves   +4 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