Results 21 to 30 of about 62,355 (111)

Reduction with zinc — Impact on the determination of nitrite and nitrate ions using microfluidic paper-based analytical devices

Talanta Open
We used a microfluidic paper-based analytical device (μPAD) to investigate the influence that zinc reduction exerts on the determination of nitrite and nitrate ions in natural water samples.
Mika I. Umeda, Kaewta Danchana, Takatoshi Fujii, Eiichi Hino, Yusuke Date, Kaoru Aoki, Takashi Kaneta   +6 more
doaj   +1 more source

Disguised as a Sulfate Reducer: Growth of the Deltaproteobacterium Desulfurivibrio alkaliphilus by Sulfide Oxidation with Nitrate

mBio, 2017
This study demonstrates that the deltaproteobacterium Desulfurivibrio alkaliphilus can grow chemolithotrophically by coupling sulfide oxidation to the dissimilatory reduction of nitrate and nitrite to ammonium.
Casper Thorup, Andreas Schramm, Alyssa J. Findlay, Kai W. Finster, Lars Schreiber   +4 more
doaj   +1 more source

Nitrate reduction by electrochemical processes using copper electrode: evaluating operational parameters aiming low nitrite formation

Water Science and Technology, 2021
This work aims to present different electroreduction and electrocatalytic processes configurations to treat nitrate contaminated water. The parameters tested were: current density, cell potential, electrode potential, pH values, cell type and catalyst ...
T. F. Beltrame, F. M. Zoppas, J. Z. Ferreira, F. A. Marchesini, A. M. Bernardes   +4 more
doaj   +1 more source

Duplication of Plasmid-Borne Nitrite Reductase Gene nirK in the Wheat-Associated Plant Growth–Promoting Rhizobacterium Azospirillum brasilense Sp245

Molecular Plant-Microbe Interactions, 2008
In the plant growth–promoting rhizobacterium Azospirillum brasilense Sp245, nitric oxide produced by denitrification could be a signal involved in stimulation of root branching, and the dissimilatory nitrite reductase gene nirK is upregulated on wheat ...
Joël F. Pothier, Claire Prigent-Combaret, Jacqueline Haurat, Yvan Moënne-Loccoz, Florence Wisniewski-Dyé   +4 more
doaj   +1 more source

Nitrite reductase activity and inhibition of H₂S biogenesis by human cystathionine ß-synthase. [PDF]

PLoS ONE, 2014
Nitrite was recognized as a potent vasodilator >130 years and has more recently emerged as an endogenous signaling molecule and modulator of gene expression. Understanding the molecular mechanisms that regulate nitrite metabolism is essential for its use
Carmen Gherasim, Pramod K Yadav, Omer Kabil, Wei-Ning Niu, Ruma Banerjee   +4 more
doaj   +1 more source

Diverse electron sources support denitrification under hypoxia in the obligate methanotroph Methylomicrobium album strain BG8

Frontiers in Microbiology, 2015
Aerobic methane-oxidizing bacteria are a diverse group of microorganisms that are ubiquitous in natural environments. Along with anaerobic methane-oxidizing bacteria and archaea, aerobic methanotrophs are critical for attenuating emission of methane to ...
K. Dimitri eKits, Dustin J Campbell, Albert eRemus Rosana, Lisa Y Stein   +3 more
doaj   +1 more source

Functioning of nitric oxide cycle in gastric mucosa of rats under excessive combined intake of sodium nitrate and fluoride [PDF]

The Ukrainian Biochemical Journal, 2016
In the article the function of nitric oxide (·NO) cycle in rat’s gastric mucosa was assessed under excessive combined chronic fluoride and nitrate intake during 30 days.
O. Ye. Akimov, V. O. Kostenko
doaj   +1 more source

Metabolic modelling of denitrification in Agrobacterium tumefaciens: a tool to study inhibiting and activating compounds for the denitrification pathway

Frontiers in Microbiology, 2012
A metabolic network model for facultative denitrification was developed based on experimental data obtained with Agrobacterium tumefaciens. The model includes kinetic regulation at the enzyme level and transcription regulation at the enzyme synthesis ...
Marlies J. Kampschreur, Marlies J. Kampschreur, Robbert eKleerebezem, Cristian ePicioreanu, Lars Reier Bakken, Linda eBergaust, Simon ede Vries, Mike S.M. Jetten, Mike S.M. Jetten, Mark C.M. Van Loosdrecht   +9 more
doaj   +1 more source

Potential Opportunities for Pharmacogenetic-Based Therapeutic Exploitation of Xanthine Dehydrogenase in Cardiovascular Disease

Antioxidants
The majority of naturally occurring mutations of the human gene XDH, are associated with reduced or completely absent xanthine oxidoreductase (XOR) activity, leading to a disease known as classical xanthinuria, which is due to the accumulation and ...
Gianmichele Massimo, Nicki Dyson, Fisayo Olotu, Rayomand S. Khambata, Amrita Ahluwalia   +4 more
doaj   +1 more source

Effect of Adding Guava (Psidium guajava) Epicarp Extract Flour on the Physicochemical, Textural, Colour and Sensory Properties of Frankfurters

Food Technology and Biotechnology, 2021
Research background. The industrial transformation of tropical fruits, and in particular guava, generates a large quantity of by-products that are generally disposed of as organic waste.
Viviana Andrea Velasco-Arango, José Igor Hleap-Zapata, Luis Eduardo Ordóñez-Santos   +2 more
doaj