Results 41 to 50 of about 50,424 (297)

Photolysis of n-butyl nitrite and isoamyl nitrite at 355 nm: A time-resolved Fourier transform infrared emission spectroscopy and ab initio study [PDF]

open access: yesJ. Chem. Phys. 130, 174314 (2009), 2009
We report on the photodissociation dynamics study of n-butyl nitrite (n-C_4H_9ONO) and isoamyl nitrite ((CH_3)_2C_3H_5ONO) by means of time-resolved Fourier transform infrared (TR-FTIR) emission spectroscopy. The obtained TR-FTIR emission spectra of the nascent NO fragments produced in the 355-nm laser photolysis of the two alkyl nitrite species showed
arxiv   +1 more source

The nitric oxide response in plant-associated endosymbiotic bacteria [PDF]

open access: yes, 2011
Nitric oxide (NO) is a gaseous signalling molecule which becomes very toxic due to its ability to react with multiple cellular targets in biological systems. Bacterial cells protect against NO through the expression of enzymes that detoxify this molecule
Andrew J. Gates   +57 more
core   +1 more source

Influences of Growth Stage and Ensiling Time on Fermentation Characteristics, Nitrite, and Bacterial Communities during Ensiling of Alfalfa

open access: yesPlants, 2023
This study examined the impacts of growth stage and ensiling duration on the fermentation characteristics, nitrite content, and bacterial communities during the ensiling of alfalfa.
Jiangbo An   +6 more
doaj   +1 more source

The flavin reductase ActVB from Streptomyces coelicolor: characterization of the electron transferase activity of the flavoprotein form [PDF]

open access: yesFEBS Letters, Elsevier, 2005, 579, pp.2817-20, 2015
The flavin reductase ActVB is involved in the last step of actinorhodin biosynthesis in Streptomyces coelicolor. Although ActVB can be isolated with some FMN bound, this form was not involved in the flavin reductase activity. By studying the ferric reductase activity of ActVB, we show that its FMN-bound form exhibits a proper enzymatic activity of ...
arxiv   +1 more source

Probing a Complex of Cytochromecand Cardiolipin by Magnetic Circular Dichroism Spectroscopy: Implications for the Initial Events in Apoptosis [PDF]

open access: yes, 2011
Oxidation of cardiolipin (CL) by its complex with cytochrome c (cyt c) plays a crucial role in triggering apoptosis. Through a combination of magnetic circular dichroism spectroscopy and potentiometric titrations, we show that both the ferric and ferrous
Armstrong F. A.   +42 more
core   +1 more source

Dissimilatory Nitrite and Nitric Oxide Reductases [PDF]

open access: yesChemical Reviews, 1996
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
openaire   +5 more sources

The production and detoxification of a potent cytotoxin, nitric oxide, by pathogenic enteric bacteria [PDF]

open access: yes, 2011
The nitrogen cycle is based on several redox reactions that are mainly accomplished by prokaryotic organisms, some archaea and a few eukaryotes, which use these reactions for assimilatory, dissimilatory or respiratory purposes.
Anke Arkenberg   +36 more
core   +1 more source

Nitrate and nitrite reductase activities of Mycobacterium avium

open access: yesInternational Journal of Mycobacteriology, 2018
Background: In spite of the fact that the standard test for nitrate reductase activity is negative for Mycobacterium avium, it can grow in a defined minimal medium with either nitrate (NO3) or nitrite (NO2) as sole nitrogen sources.
Nitin S Butala, Joseph Oliver Falkinham
doaj   +1 more source

Polyethylene Glycol Camouflaged Earthworm Hemoglobin. [PDF]

open access: yes, 2017
Nearly 21 million components of blood and whole blood and transfused annually in the United States, while on average only 13.6 million units of blood are donated. As the demand for Red Blood Cells (RBCs) continues to increase due to the aging population,
Cabrales, Pedro   +8 more
core   +3 more sources

Influence of lead on N03 uptake and reduction in cucumber seedlings

open access: yesActa Societatis Botanicorum Poloniae, 2014
The influence of PbCl2 on NO3- uptake and activity level of nitrate (NR) and nitrite MR) reductases in cotyledons and roots of cucumber seedlings was studied.
Marek Burzyński, Adam Grabowski
doaj   +1 more source

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