Results 41 to 50 of about 1,784 (205)

Genomic insight into strategy, interaction and evolution of nitrifiers in metabolizing key labile-dissolved organic nitrogen in different environmental niches

Frontiers in Microbiology, 2023
Ammonia-oxidizing archaea (AOA) and bacteria (AOB), nitrite-oxidizing bacteria (NOB), and complete ammonia oxidizers (comammox) are responsible for nitrification in nature; however, some groups have been reported to utilize labile-dissolved organic ...
Qian Liu, Qian Liu, Qian Liu, Yuhao Chen, Yuhao Chen, Xue-Wei Xu, Xue-Wei Xu, Xue-Wei Xu   +7 more
doaj   +1 more source

ComammoxNitrospirabacteria outnumber canonical nitrifiers irrespective of electron donor mode and availability in biofiltration systems

FEMS Microbiology Ecology, 2022
AbstractComplete ammonia oxidizing bacteria coexist with canonical ammonia and nitrite oxidizing bacteria in a wide range of environments. Whether this is due to competitive or cooperative interactions, or a result of niche separation is not yet clear.
Katherine J, Vilardi, Irmarie, Cotto, Maria, Sevillano, Zihan, Dai, Christopher L, Anderson, Ameet, Pinto   +5 more
openaire   +2 more sources

Exploring bacterial communities in aquaponic systems [PDF]

, 2019
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, Jijakli, M., Junge, Ranka, Massart, Sébastien, Sare, Abdoul, Schmautz, Zala, Smits, Theo H. M.   +6 more
core   +1 more source

The impact of fertilization on ammonia-oxidizing bacteria and comammox Nitrospira communities and the subsequent effect on N2O emission and maize yield in a semi-arid region

Frontiers in Microbiology, 2023
The control of nitrous oxide (N2O) emissions through nitrification and the optimization of maize yield are important in agricultural systems. However, within the semi-arid region, the impact of fertilization on the function of nitrification communities ...
Setor Kwami Fudjoe, Setor Kwami Fudjoe, Lingling Li, Lingling Li, Sumera Anwar, Shangli Shi, Junhong Xie, Junhong Xie, Frederick Kwame Yeboah, Linlin Wang, Linlin Wang   +10 more
doaj   +1 more source

Genome-Enabled Insights into the Ecophysiology of the Comammox Bacterium “Candidatus Nitrospira nitrosa”

mSystems, 2017
The recently discovered comammox bacteria have the potential to completely oxidize ammonia to nitrate. These microorganisms are part of the Nitrospira genus and are present in a variety of environments, including biological nutrient removal (BNR) systems.
Pamela Y. Camejo, Jorge Santo Domingo, Katherine D. McMahon, Daniel R. Noguera   +3 more
doaj   +1 more source

Metagenomic approaches reveal differences in genetic diversity and relative abundance of nitrifying bacteria and archaea in contrasting soils

Scientific Reports, 2021
The abundance and phylogenetic diversity of functional genes involved in nitrification were assessed in Rothamsted field plots under contrasting management regimes—permanent bare fallow, grassland, and arable (wheat) cultivation maintained for more than ...
Ian M. Clark, David J. Hughes, Qingling Fu, Maïder Abadie, Penny R. Hirsch   +4 more
doaj   +1 more source

An investigation of Nitrospira bacteria in coastal wetlands of China: distribution pattern and related environmental driving factors

Frontiers in Marine Science, 2023
Nitrate is mainly converted via aerobic nitrite oxidation during the second step of nitrification, which is catalyzed by nitrite-oxidizing bacteria (NOB) and the recently discovery complete ammonia oxidizers (comammox).
Qiang Zhao, Dongyao Sun, Dongyao Sun, Xiufeng Tang, Lijun Hou, Min Liu, Ping Han, Ping Han, Ping Han   +8 more
doaj   +1 more source

Long solids retention times and attached growth phase favor prevalence of comammox bacteria in nitrogen removal systems [PDF]

Water Research, 2019
ABSTRACTThe discovery of the complete ammonia oxidizing (comammox) bacteria overturns the traditional two-organism nitrification paradigm which largely underpins the design and operation of nitrogen removal during wastewater treatment. Quantifying the abundance, diversity, and activity of comammox bacteria in wastewater treatment systems is important ...
Irmarie Cotto, Zihan Dai, Linxuan Huo, Christopher L. Anderson, Katherine J. Vilardi, Umer Ijaz, Wendell Khunjar, Christopher Wilson, Haydee De Clippeleir, Kevin Gilmore, Erika Bailey, Ameet J. Pinto   +11 more
openaire   +2 more sources

Flow-cytometric quantification of microbial cells on sand from water biofilters [PDF]

, 2018
Rapid quantification of absolute microbial cell abundances is important for a comprehensive interpretation of microbiome surveys and crucial to support theoretical modelling and the design of engineered systems.
Davenport, Russell J., Hammes, Frederik, King, Lianna C., Vignola, Marta, Werner, David   +4 more
core   +1 more source

Co-Occurrence and Cooperation between Comammox and Anammox Bacteria in a Full-Scale Attached Growth Municipal Wastewater Treatment Process

Environmental Science & Technology, 2022
ABSTRACTCooperation between comammox and anammox bacteria for nitrogen removal has been recently reported in laboratory-scale systems including synthetic community construct; however, there are no reports of full-scale municipal wastewater treatment systems with such cooperation.
Katherine Vilardi, Irmarie Cotto, Megan Bachmann, Mike Parsons, Stephanie Klaus, Christopher Wilson, Charles Bott, Kelsey Pieper, Ameet Pinto   +8 more
openaire   +2 more sources