Results 151 to 160 of about 292,870 (340)

Quorum sensing systems regulate heterotrophic nitrification-aerobic denitrification by changing the activity of nitrogen-cycling enzymes

Environmental Science and Ecotechnology, 2020
Heterotrophic nitrification-aerobic denitrification (HNAD) is essential in diverse nitrogen-transforming processes. How HNAD is modulated by quorum sensing (QS) systems is still ambiguous.
Ziqian Zhu, Yang Yang, Anran Fang, Yu Lou, Guojun Xie, Nanqi Ren, Defeng Xing   +6 more
doaj  

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

Genome sequence of Rhizobium sullae HCNT1 isolated from Hedysarum coronarium nodules and featuring peculiar denitrification phenotypes [PDF]

, 2018
The genome sequence of Rhizobium sullae strain HCNT1, isolated from root nodules of the legume Hedysarum coronarium growing in wild stands in Tuscany, Italy, is described here. Unlike other R.
Basaglia, M., Campanaro, S., Casella, S., da Silva Duarte, V., de Diego-Diaz, B., Favaro, L., Squartini, A., Treu, L.   +7 more
core   +2 more sources

Directed evolution of copper nitrite reductase to a chromogenic reductant.

Protein engineering, design & selection : PEDS, 2010
Directed evolution methods were developed for Cu-containing nitrite reductase (NiR) from Alcaligenes faecalis S-6. The PCR cloning strategy allows for the efficient production of libraries of 100 000 clones by a modification of a megaprimer-based whole ...
Iain S. MacPherson, Iain S. MacPherson, F. Rosell, M. Scofield, A. Mauk, M. Murphy   +5 more
semanticscholar   +1 more source

Microbial Ecology of Permafrost Soils: Populations, Processes, and Perspectives

Permafrost and Periglacial Processes, Volume 36, Issue 2, Page 245-258, April/June 2025.
ABSTRACT Permafrost microbial research has flourished in the past decades, due in part to improvements in sampling and molecular techniques, but also the increased focus on the permafrost greenhouse gas feedback to climate change and other ecological processes in high latitude and alpine permafrost soils.
Mark P. Waldrop, Jessica Gilman Ernakovich, Tatiana A. Vishnivetskaya, Sean R. Schaefer, Rachel Mackelprang, Jiri Barta, Joy M. O′Brien, Matthias Winkel, Robyn A. Barbato, Liam Heffernan, Mary‐Cathrine Leewis, Rebecca E. Hewitt, Jenni Hultman, Yanchen Sun, Christina Biasi, James A. Bradley, Susanne Liebner, Michael P. Ricketts, Mario E. Muscarella, Ursel Schütte, Fumnanya Abuah, Emily Whalen, Ina Timling, Carolina Voigt, Neslihan Taş, Karen G. Lloyd, Henri M. P. Siljanen, Elizaveta M. Rivkina, Jana Voříšková, Jing Tao, Renxing Liang, Zhen Li, Jay T. Lennon, T. C. Onstott   +33 more
wiley   +1 more source

A dedicated haem lyase is required for the maturation of a novel bacterial cytochrome c with unconventional covalent haem binding [PDF]

, 2007
In bacterial c-type cytochromes, the haem cofactor is covalently attached via two cysteine residues organized in a haem c-binding motif. Here, a novel octa-haem c protein, MccA, is described that contains only seven conventional haem c-binding motifs ...
Allen J.W.A., Allen J.W.A., Allen J.W.A., Allen J.W.A., Beliaev A.S., de Vitry C., Dobbin P.S., Hartshorne S., Kroger A., Lorenzen J.P., Mileni M., Moore G.R., Mowat C.G., Scott R.A., Thony-Meyer L., Walker F.A., Wood P.M., Yang F.   +17 more
core   +1 more source

The di-flavoenzyme reductase directly activates oxygen for the metabolism of diverse drug molecules by liver microsomal Cytochrome P450s [PDF]

arXiv, 2006
This submission has been withdrawn by arXiv administration due to complaints of misuse of institutional affiliation.
arxiv  

The Cells of the Vasculature: Advances in the Regulation of Vascular Tone in the Brain and Periphery

Basic &Clinical Pharmacology &Toxicology, Volume 136, Issue 5, May 2025.
ABSTRACT The vasculature is a complex tissue in which multiple cell types coordinate the regulation of tissue perfusion in response to hemodynamic and biochemical signals. Advances in this field are continuing to deepen our understanding of the relative importance of these cell types through the body.
Luke S. Dunaway, William A. Mills III, Ukpong B. Eyo, Brant E. Isakson   +3 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

A functional description of CymA, an electron-transfer hub supporting anaerobic respiratory flexibility in Shewanella [PDF]

, 2012
CymA (tetrahaem cytochrome c) is a member of the NapC/NirT family of quinol dehydrogenases. Essential for the anaerobic respiratory flexibility of shewanellae, CymA transfers electrons from menaquinol to various dedicated systems for the reduction of ...
Butt, Julea N., Bye, Jordan, Cheesman, Myles R., Fredrickson, Jim, Jeuken, Lars J. C., Lowe, Thomas G., Marritt, Sophie J., McMillan, Duncan G. G., Richardson, David J., Shi, Liang, Zachara, John   +10 more
core   +1 more source