Results 211 to 220 of about 13,062 (232)

Enhancing the relative abundance of comammox nitrospira in ammonia oxidizer community decreases N2O emission in nitrification exponentially.

Chemosphere
Comammox Nitrospira and canonical ammonia-oxidizing bacteria (cAOB) generally coexist in activated sludge. In present study, the effect of comammox Nitrospira on N2O production during nitrification of activated sludge was investigated.
Zhichang Ren, Deyong Li, Zhuang Zhang, Weimin Sun, Guoqiang Liu   +4 more
semanticscholar   +1 more source

Comammox Nitrospira Bacteria Are Dominant Ammonia Oxidizers in Mainstream Nitrification Bioreactors Emended with Sponge Carriers.

Environmental Science and Technology, 2022
Complete ammonia oxidation (i.e., comammox) is a newly discovered microbial process performed by a subset of the Nitrospira genus, and this unique microbial process has been ubiquitously detected in various wastewater treatment units.
Tuo Huang, Jun Xia, Tao Liu, Zicheng Su, Y. Guan, Jianhua Guo, Chengwen Wang, Min Zheng   +7 more
semanticscholar   +1 more source

Different oxygen affinities of methanotrophs and Comammox Nitrospira inform an electrically induced symbiosis for nitrogen loss.

Water Research
Aerobic methanotrophs establish a symbiotic association with denitrifiers to facilitate the process of aerobic methane oxidation coupled with denitrification (AME-D). However, the symbiosis has been frequently observed in hypoxic conditions continuing to
Hao Wu, Wen-Bo Nie, Xin Tan, Guo-Jun Xie, Han Qu, Xin Zhang, Zhihao Xian, Jingyi Dai, Chun Yang, Yi Chen   +9 more
semanticscholar   +1 more source

Comammox Nitrospira clade B contributes to nitrification in soil

Soil Biology and Biochemistry, 2019
Abstract Comammox, one nitrifying microorganism carries out the complete oxidation of ammonia to nitrate, have been recently discovered, and are found in a wide range of environments, including soil. However, conditions under which they actually contribute to nitrification in soil have not yet been demonstrated.
Wang, Zhihui, Cao, Yanqiang, Zhu-Barker, Xia, Nicol, Graeme W., Wright, Alan, Jia, Zhongjun, Jiang, Xianjun   +6 more
openaire   +3 more sources

Higher stochasticity in comammox Nitrospira community assembly in upland soils than the adjacent paddy soils at a regional scale.

Science of the Total Environment
Understanding the assembly mechanisms of microbial communities, particularly comammox Nitrospira, in agroecosystems is crucial for sustainable agriculture.
Mengmeng Feng, Yongxin Lin, Zi-Yang He, Hang‐Wei Hu, Sheng‐Sheng Jin, Jia Liu, Song Wan, Yuheng Cheng, Ji‐Zheng He   +8 more
semanticscholar   +1 more source

Response of comammox Nitrospira clades A and B communities to long-term fertilization and rhizosphere effects and their relative contribution to nitrification in a subtropical paddy field of China.

Journal of Environmental Management
The recently discovered complete ammonia oxidation (comammox Nitrospira) containing clade A and clade B has further complemented our understanding of nitrification process. Nevertheless, understanding the community feature of comammox Nitrospira clades A
Rui Tao, Wangying Ding, Keyi Zhang, Yanyan Li, Jun Li, Baowei Hu, Guixin Chu   +6 more
semanticscholar   +1 more source

Long-term stability of comammox Nitrospira under weakly acidic conditions and their acid-adaptive mechanisms revealed by genome-centric metatranscriptomics.

Bioresource Technology
Despite their widespread presence in acidic environments, the stability and adaptative mechanisms of complete ammonia oxidization (comammox) bacteria remain poorly understood.
Deyong Li, Wanyi Liang, Xiaoxu Sun, Weimin Sun, Guoqiang Liu, Eddy Y. Zeng   +5 more
semanticscholar   +1 more source

Understanding Chlorite Dismutase from Candidatus Nitrospira defluvii

Journal of Biological Inorganic Chemistry, 2014
Chlorite dismutases (Clds) are heme b containing oxidoreductases that convert chlorite to chloride and molecular oxygen. In order to elucidate the role of conserved heme cavity residues in the catalysis of this reaction comprehensive mutational and biochemical analyses of Cld from “Candidatus Nitrospira defluvii” (NdCld) were performed, using UV-vis ...
S. Hofbauer, C. Gruber, K. F. Pirker, I. Schaffner, P. G. Furtmuller, C. Obinger, A. Hagmuller, K. Gysel, G. Mlynek, J. Kostan, K. Djinovic Carugo, BELLEI, Marzia, BATTISTUZZI, Gianantonio, H. Daims   +13 more
openaire   +2 more sources

The environmental detection of comammox Nitrospira

2017
Vor kurzem wurden die ersten Mikroorganismen entdeckt, die in der Lage sind Ammonium komplett zu Nitrat zu oxidieren (‘comammox’), und dadurch das Dogma, über die Arbeitsteilung in der Nitrifikation in zwei aufeinanderfolgenden Schritten, für ungültig erklärt.
openaire   +1 more source

Cyanate utilization by and cryopreservation of Nitrospira moscoviensis

2015
Nitrogen is a common element in the universe and necessary for all known forms of life on Earth. The nitrogen cycle is a key process, by which nitrogen is converted in various chemical forms by biological processes. One of the key processes in the nitrogen cycle is nitrification, describing the sequential oxidation of ammonia via nitrite to nitrate ...
openaire   +1 more source