Results 41 to 50 of about 1,770 (212)

Low diversity and microdiversity of comammox bacteria in wastewater systems suggest specific adaptations within the Ca. Nitrospira nitrosa cluster [PDF]

Water Research, 2023
Studies have found Ca. Nitrospira nitrosa-like bacteria to be the principal or sole comammox bacteria in nitrogen removal systems for wastewater treatment. In contrast, multiple populations of strict ammonia and nitrite oxidizers co-exist in similar systems.
Irmarie Cotto, Katherine J. Vilardi, Linxuan Huo, Emily C. Fogarty, Wendell Khunjar, Christopher Wilson, Haydee De Clippeleir, Kevin Gilmore, Erika Bailey, Sebastian Lücker, Ameet J. Pinto   +10 more
openaire   +3 more sources

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

Comammox Nitrospira Clade B is the most abundant complete ammonia oxidizer in a dairy pasture soil and inhibited by dicyandiamide and high ammonium concentrations [PDF]

, 2022
The recent discovery of comammox Nitrospira, a complete ammonia oxidizer, capable of completing the nitrification on their own has presented tremendous challenges to our understanding of the nitrification process.
Cameron, Keith, Carrick, S, Chau, Henry, Di, Hong, Ding, W, Ferguson, S, Hsu, PC, Johnstone, P, Li, B, Liu, H, Liu, Y, Luo, J, Miller, B, Pan, H, Podolyan, Andriy, Shen, J, Wei, W, Wei, W, Zhang, L, Zhao, T   +19 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

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

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

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

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

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

Genome-centered metagenomics illuminates adaptations of core members to a partial Nitritation–Anammox bioreactor under periodic microaeration

Frontiers in Microbiology, 2023
The partial nitritation-anaerobic ammonium oxidation (anammox; PN-A) process has been considered a sustainable method for wastewater ammonium removal, with recent attempts to treat low-strength wastewater.
Yung-Hsien Shao, Yu-Wei Wu, Muhammad Naufal, Jer-Horng Wu   +3 more
doaj   +1 more source