Results 81 to 90 of about 72,091 (178)

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

Thaumarchaeal ammonium oxidation and evidence for a nitrogen cycle in a subsurface radioactive thermal spring in the Austrian Central Alps

Frontiers in Microbiology, 2014
Previous studies had suggested the presence of ammonium oxidizing Thaumarchaeota as well as nitrite oxidizing Bacteria in the subsurface spring called Franz Josef Quelle (FJQ), a slightly radioactive thermal mineral spring with a temperature of 43.6 ...
Friedrich Wolfgang Gerbl, Gerhard Wolfgang Weidler, Wolfgang eWanek, Angelika eErhardt, Helga eStan-Lotter   +4 more
doaj   +1 more source

On the dynamics of nitrite, nitrate and other biomarkers of nitric oxide production in inflammatory bowel disease [PDF]

, 2010
Nitrite and nitrate are frequently used surrogate markers of nitric oxide (NO) production. Using rat models of acute and chronic DSS-induced colitis we examined the applicability of these and other NO-related metabolites, in tissues and blood, for the ...
Fumito Saijo, Bryan, Nathan S., Chris Andry, Andry, Chris, D. Neil Granger, Saijo, Fumito, Juan Rodriguez, Ivanovic, Marina, Rodriguez, Juan, Bauer, Selena M., Selena M. Bauer, Feelisch, Martin, Vowinkel, Thorsten, Thorsten Vowinkel, Martin Feelisch, Milsom, Alexandra B., Nathan S. Bryan, Alexandra B. Milsom, Granger, D. Neil, Marina Ivanovic   +19 more
core   +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

Redox Reactivity of Nonsymbiotic Phytoglobins towards Nitrite

Molecules
Nonsymbiotic phytoglobins (nsHbs) are a diverse superfamily of hemoproteins grouped into three different classes (1, 2, and 3) based on their sequences.
Cezara Zagrean-Tuza, Galaba Pato, Grigore Damian, Radu Silaghi-Dumitrescu, Augustin C. Mot   +4 more
doaj   +1 more source

A QM/MM Study of Nitrite Binding Modes in a Three-Domain Heme-Cu Nitrite Reductase

Molecules, 2018
Copper-containing nitrite reductases (CuNiRs) play a key role in the global nitrogen cycle by reducing nitrite (NO2−) to nitric oxide, a reaction that involves one electron and two protons.
Kakali Sen, Michael A. Hough, Richard W. Strange, Chin W. Yong, Thomas W. Keal   +4 more
doaj   +1 more source

Comparative EPR studies on the nitrite reductases from Escherichia coli and Wolinella succinogenes [PDF]

, 1987
Hexaheme nitrite reductases purified to homogeneity from Escherichia coli K-12 and Wolinella succinogenes were studied by low-temperature EPR spectroscopy.
M.-Y. Liu, Liu, M.-C., Payne, W.J., J. Le Gall, Le Gall, J., H.D. Peck, Peck, H.D., Liu, M.-Y., W.J. Payne, DerVartanian, D.V., M.-C. Liu, D.V. DerVartanian   +11 more
core   +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

Causes and control of low F/M bulking in long sludge age nutrient removal activated sludge systems [PDF]

, 1993
Includes bibliography.A problem plaguing the greater proportion of nutrient removal activated sludge systems treating municipal sewage, is the prolific growth of :filamentous organisms (bulking), which inhibits the rate of sludge settling in the ...
Casey, Timothy Gervase
core   +1 more source