Results 41 to 50 of about 24,940 (303)
Photo-acoustic spectroscopy using a quantum cascade laser (QCL) for analysis of ammonia in water solutions [PDF]
arXiv, 2023 Ammonia (NH$_3$) toxicity, stemming from nitrification, can adversely affect aquatic life and influence the taste and odor of drinking water. This underscores the necessity for highly responsive and accurate sensors to continuously monitor NH$_3$ levels in water, especially in complex environments where reliable sensors have been lacking until this ...
arxiv
Fate of nitrogen in French human excreta: current waste and agronomic opportunities for the future [PDF]
arXiv, 2023 Nitrogen (N) is essential for plant growth and protein synthesis but global reactive N losses, mainly from food systems, induce strong environmental impacts.N losses after human excretion are often overlooked because, in Western societies, they partly occur as inert N2, following denitrification in wastewater treatment plants (WWTP), and losses in ...
arxiv
Microorganisms, 2019 Ammonia oxidizing archaea (AOA) and bacteria (AOB) are thought to contribute differently to soil nitrification, yet the extent to which their relative abundances influence the temperature response of nitrification is poorly understood.
Hussnain Mukhtar +3 more
doaj +1 more source
High-throughput assays to identify archaea-targeting nitrification inhibitors
Frontiers in Plant ScienceNitrification is a microbial process that converts ammonia (NH3) to nitrite (NO2-) and then to nitrate (NO3-). The first and rate-limiting step in nitrification is ammonia oxidation, which is conducted by both bacteria and archaea.
Fabian Beeckman +11 more
doaj +1 more source
Effect of Influent COD/N Ratio on Nitrification Rate in a Bench-scale Biological Reactor [PDF]
آب و فاضلاب, 2005 Nitrification, the oxidation of ammonia to nitrate catalyzed by bacteria, is a key part of the global nitrogen cycle. In the first step of nitrification, chemolithoautotrophic ammonia oxidizers transform ammonia to nitrite, which subsequently oxidizes to
Bijan Bina +2 more
doaj
FEBS Letters, EarlyView.In modular polyketide synthases, the dehydratase (DH) domain catalyzes the dehydration reaction of the β‐hydroxyacyl unit attached to the cognate acyl carrier protein (ACP) domain. However, it is unclear how DH interacts with ACP during the reaction. In this study, we identified DH–ACP interface residues, providing the first detailed insights into DH ...
Kaede Kotagiri +8 more
wiley +1 more source
Ammonium uptake by phytoplankton regulates nitrification in the sunlit ocean. [PDF]
PLoS ONE, 2014 Nitrification, the microbial oxidation of ammonium to nitrate, is a central part of the nitrogen cycle. In the ocean's surface layer, the process alters the distribution of inorganic nitrogen species available to phytoplankton and produces nitrous oxide.
Jason M Smith +2 more
doaj +1 more source
Effects of Phosphorus on Nitrification Process in a Fertile Soil Amended with Urea
Agriculture, 2021 While the effects of carbon on soil nitrogen (N) cycle have been extensively studied, it is not clearly understood how co-existing macronutrients, such as phosphorus (P), affect the N cycle in agroecosystems.
Jianfeng Ning +4 more
doaj +1 more source
ON THE NATURE OF AMMONIFICATION AND NITRIFICATION [PDF]
Soil Science, 1916 n ...
openaire +2 more sources
Functional variation among LPMOs revealed by the inhibitory effects of cyanide and buffer ions
FEBS Letters, EarlyView.This study addresses the inhibition of lytic polysaccharide monooxygenases (LPMOs) by cyanide and explains how and why the magnitude of observed inhibitory effects depends on the way LPMO reactions are setup and on the type of LPMO. Enzymes known as lytic polysaccharide monooxygenases (LPMOs) are mono‐copper polysaccharide‐degrading peroxygenases that ...
Ole Golten +10 more
wiley +1 more source