Results 21 to 30 of about 163 (120)

Ammonia- and Nitrite-Oxidizing Bacteria are Dominant in Nitrification of Maize Rhizosphere Soil Following Combined Application of Biochar and Chemical Fertilizer

Frontiers in Microbiology, 2021
Autotrophic nitrification is regulated by canonical ammonia-oxidizing archaea (AOA) and bacteria (AOB) and nitrite-oxidizing bacteria (NOB). To date, most studies have focused on the role of canonical ammonia oxidizers in nitrification while neglecting ...
Ping Sun, Ziting Zhao, Pingshan Fan, Wei Chen, Yunze Ruan, Qing Wang   +5 more
doaj   +1 more source

Impacts of urea and 3,4-dimethylpyrazole phosphate on nitrification, targeted ammonia oxidizers, non-targeted nitrite oxidizers, and bacteria in two contrasting soils

Frontiers in Microbiology, 2022
This study explored the effects of combined urea and 3,4-dimethylpyrazole phosphate (DMPP) on several components critical to the soil system: net nitrification rates; communities of targeted ammonia oxidizers [ammonia-oxidizing archaea (AOA) and bacteria
Qing Wang, Qing Wang, Ziting Zhao, Ziting Zhao, Manyao Yuan, Manyao Yuan, Zhijun Zhang, Shanshuai Chen, Shanshuai Chen, Yunze Ruan, Yunze Ruan, Qiong Huang, Qiong Huang   +12 more
doaj   +1 more source

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

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

Comammox Nitrospira bacteria outnumber canonical nitrifiers irrespective of nitrogen source and availability [PDF]

, 2021
Abstract Complete 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 Rivera, Zihan Dai, Christopher L. Anderson, Ameet Pinto   +5 more
openaire   +1 more source

Effects of straw returning combined with earthworm addition on nitrification and ammonia oxidizers in paddy soil

Frontiers in Microbiology, 2022
IntroductionSoil ammonia oxidation, which acts as the first and rate-limiting step of nitrification, is driven by ammonia-oxidizing bacteria (AOB), ammonia-oxidizing archaea (AOA) and complete ammonia oxidizer (comammox, amoA gene of clade-A and clade-B).
Xiangqian Chu, Xiangqian Chu, Naling Bai, Naling Bai, Xianqing Zheng, Xianqing Zheng, Quanhua Wang, Xi Pan, Shuangxi Li, Shuangxi Li, Juanqin Zhang, Juanqin Zhang, Haiyun Zhang, Haiyun Zhang, Wenjie He, Feng Zhong, Weiguang Lv, Weiguang Lv, Hanlin Zhang, Hanlin Zhang, Hanlin Zhang   +20 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