Results 71 to 80 of about 5,332 (201)

The Dark Side of Microbial Processes: Accumulation of Nitrate During Storage of Surface Water in the Dark and the Underlying Mechanism

open access: yesMicrobiology Spectrum, 2022
In densely populated cities with limited land, storage of surface water in underground spaces is a potential solution to meet the rising demand of clean water.
Amit Kumar   +3 more
doaj   +1 more source

Natural variation of the wheat root exudate metabolome and its influence on biological nitrification inhibition activity

open access: yesPlant Biotechnology Journal, Volume 23, Issue 11, Page 4755-4772, November 2025.
Summary Excessive nitrogen use and low nitrogen use efficiency (NUE) in current agroecosystems are disrupting the global nitrogen cycle. Chemical inhibitors offer only temporary relief, while plant‐derived biological nitrification inhibitors (BNIs) remain safer but underexplored.
Arindam Ghatak   +20 more
wiley   +1 more source

Nitrous oxide emission in low-oxygen simultaneous nitrification and denitrification process: Sources and mechanisms [PDF]

open access: yes, 2013
This study attempts to elucidate the emission sources and mechanisms of nitrous oxide (N2O) during simultaneous nitrification and denitrification (SND) process under oxygen-limiting condition.
Guo, W   +6 more
core   +1 more source

Current understanding of electroautotrophy and its relevance in astrobiology‐related research

open access: yesmLife, Volume 4, Issue 5, Page 473-493, October 2025.
Abstract Electroautotrophy—the use of extracellular electrons as the primary energy source for autotrophic metabolism—remains understudied compared to photoautotrophy and chemoautotrophy. Its occurrence in deep‐earth and deep‐sea environments suggests profound implications for astrobiology, yet electroautotrophic microorganisms remain poorly explored ...
Quansheng Wang, Maggie C. Y. Lau Vetter
wiley   +1 more source

Heterotrophic ammonia oxidation by Alcaligenes balances ROS generation and terminal electron transport

open access: yesmLife, Volume 4, Issue 5, Page 527-538, October 2025.
Abstract Heterotrophic nitrifiers are bacteria that aerobically oxidize ammonia in the presence of organic carbon sources, which differs from autotrophic nitrifiers that extract energy from ammonia oxidation for cell metabolism and growth. The physiological significance of heterotrophic ammonia oxidation remains unclear, even though this process has ...
Runhua Wang   +11 more
wiley   +1 more source

High inorganic triphosphatase activities in bacteria and mammalian cells: identification of the enzymes involved. [PDF]

open access: yesPLoS ONE, 2012
BACKGROUND: We recently characterized a specific inorganic triphosphatase (PPPase) from Nitrosomonas europaea. This enzyme belongs to the CYTH superfamily of proteins.
Gregory Kohn   +10 more
doaj   +1 more source

Microbial diversity and function in the rhizosphere microbiome: Driving forces and monitoring approaches

open access: yesAgrosystems, Geosciences &Environment, Volume 8, Issue 3, September 2025.
Abstract As an ecological unit, the rhizosphere microbiome preserves an enormous and largely unexplored diversity of microbes that play essential roles in plant health and soil functions. Omics technologies encompassing high‐throughput approaches such as metagenomics, metatranscriptomics, and metaproteomics provide helpful tools to unravel the ...
Chinenyenwa Fortune Chukwuneme   +1 more
wiley   +1 more source

Radiotolerance of N-cycle bacteria and their transcriptomic response to low-dose space-analogue ionizing irradiation

open access: yesiScience
Summary: The advancement of regenerative life support systems (RLSS) is crucial to allow long-distance space travel. Within the Micro-Ecological Life Support System Alternative (MELiSSA), efficient nitrogen recovery from urine and other waste streams is ...
Tom Verbeelen   +9 more
doaj   +1 more source

Isotopomeric characterization of nitrous oxide produced by reaction of enzymes extracted from nitrifying and denitrifying bacteria [PDF]

open access: yesBiogeosciences, 2014
Nitrous oxide (N2O) is a potent greenhouse gas and produced in denitrification and nitrification by various microorganisms. Site preference (SP) of 15N in N2O, which is defined as the difference in the natural abundance of isotopomers 14N15NO and ...
T. Yamazaki   +6 more
doaj   +1 more source

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

open access: yes, 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.   +10 more
core   +1 more source

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