Results 41 to 50 of about 2,030 (196)
The discovery of complete ammonia oxidation (comammox), oxidizing ammonia to nitrate via nitrite in a single organism, has redefined the traditional recognition of the two-step nitrification driven by two functional groups (ammonia-oxidizing and nitrite ...
Xinxin Wang +13 more
doaj +1 more source
Comammox Functionality Identified in Diverse Engineered Biological Wastewater Treatment Systems [PDF]
Complete ammonia oxidation (comammox) to nitrate by certain Nitrospira-lineage bacteria (CMX) could contribute to overall nitrogen cycling in engineered biological nitrogen removal (BNR) processes in addition to the more well-documented nitrogen transformations by ammonia-oxidizing bacteria (AOB), nitrite-oxidizing bacteria (NOB), and anaerobic ammonia-
Medini K. Annavajhala +3 more
openaire +2 more sources
Due to global change, increasing nutrient input to ecosystems dramatically affects the nitrogen cycle, especially the nitrification process. Nitrifiers including ammonia-oxidizing archaea (AOAs), ammonia-oxidizing bacteria (AOBs), nitrite-oxidizing bacteria (NOBs), and recently discovered complete ammonia oxidizers (comammoxs) perform nitrification ...
Xueqin Yang +13 more
openaire +3 more sources
Metagenomic analysis of rapid gravity sand filter microbial communities suggests novel physiology of Nitrospira spp [PDF]
Rapid gravity sand filtration is a drinking water production technology widely used around the world. Microbially catalyzed processes dominate the oxidative transformation of ammonia, reduced manganese and iron, methane and hydrogen sulfide, which may ...
Fowler, Jane +5 more
core +1 more source
Complete ammonia oxidizer (Comammox) can complete the whole nitrification process independently, whose niche differentiation is important guarantee for its survival and ecological function.
Jiahui Zhang +8 more
doaj +1 more source
Ammonia oxidation: Ecology, physiology, biochemistry and why they must all come together [PDF]
Ammonia oxidation is a fundamental core process in the global biogeochemical nitrogen cycle. Oxidation of ammonia (NH3) to nitrite (NO2 −) is the first and rate-limiting step in nitrification and is carried out by distinct groups of microorganisms ...
Abby +87 more
core +1 more source
Comammox Nitrospira among dominant ammonia oxidizers within aquarium biofilter microbial communities. [PDF]
ABSTRACT Nitrification by aquarium biofilters transforms ammonia waste (NH 3 /NH 4 + ) to less toxic nitrate (NO 3 - ) via nitrite (NO 2 - ).
McKnight MM, Neufeld JD.
europepmc +3 more sources
Exploring bacterial communities in aquaponic systems [PDF]
Aquaponics is a production system based on the dynamic equilibrium between fish, plants, and microorganisms. In order to better understand the role of microorganisms in this tripartite relationship, we studied the bacterial communities hosted in eight ...
Eck, Mathilde +6 more
core +1 more source
Evaluation of Two Primer Sets for Amplification of Comammox Nitrospira amoA Genes in Wetland Soils
After the discovery of complete ammonia-oxidizing (comammox) Nitrospira, detection and assessments of the contribution of comammox Nitrospira communities to nitrogen cycling are in great demand.
Chenshuo Lin +14 more
doaj +1 more source
Multidimensional Reveal of Nitrogen Regulation on Comammox
Abstract Background The discovery of complete ammonia oxidizer (comammox) was groundbreaking. Comammox can use ammonia as the sole nitrogen source and turn it to nitrate. Moreover, genomic data indicated that comammox contained genes which can metabolize urea and nitrite.
Yuxiang Zhao +6 more
openaire +1 more source

