Results 11 to 20 of about 66,906 (298)

Biogeography of anaerobic ammonia-oxidizing (anammox) bacteria [PDF]

Frontiers in Microbiology, 2014
Anaerobic ammonia-oxidizing (anammox) bacteria are able to oxidize ammonia and reduce nitrite to produce N2 gas. After being discovered in a wastewater treatment plant (WWTP), anammox bacteria were subsequently characterized in natural environments ...
Puntipar eSonthiphand, Michael W Hall, Josh David Neufeld   +2 more
doaj   +3 more sources

Dating Ammonia-Oxidizing Bacteria with Abundant Eukaryotic Fossils. [PDF]

Mol Biol Evol
AbstractEvolution of a complete nitrogen cycle relies on the onset of ammonia oxidation, which aerobically converts ammonia to nitrogen oxides. However, accurate estimation of the antiquity of ammonia-oxidizing bacteria (AOB) remains challenging because AOB-specific fossils are absent and bacterial fossils amenable to calibrate bacterial molecular ...
Liao T, Wang S, Zhang H, Stüeken EE, Luo H.   +4 more
europepmc   +5 more sources

Shifts of ammonia-oxidation process along salinity gradient in an estuarine wetland

Ecological Indicators, 2022
Ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA) play an important role in nitrogen (N) cycling of the estuarine sediments. However, the shifts of potential ammonia oxidation rates (PARs) of AOA and AOB along different salinity ...
Weifang Hu, Mianrun Chen, Xue Lan, Guoliang Li, Bin Wang, DongYao Sun, Xianbiao Lin   +6 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

Individual and combined contamination of oxytetracycline and cadmium inhibited nitrification by inhibiting ammonia oxidizers

Frontiers in Microbiology, 2022
IntroductionThe large-scale development of animal husbandry and industrialization lead to more and more serious co-contamination from heavy metals and antibiotics in soils.
Xiaoxu Cao, Wei Zhao, He Zhang, Jitong Lin, Jingying Hu, Yanhong Lou, Hui Wang, Quangang Yang, Hong Pan, Yuping Zhuge   +9 more
doaj   +1 more source

The network of nitrifying and pathogenic prokaryotic interactions in a recirculating aquaculture system of a sole (Solea senegalensis) hatchery

Frontiers in Marine Science, 2022
Prokaryotic interactions in recirculating aquaculture systems (RAS) environmental communities may play a crucial role in driving their functional potential. However, these interactions are often neglected.
Diana Bastos Almeida, Diana Bastos Almeida, Diana Bastos Almeida, Miguel Semedo, Catarina Magalhães, Catarina Magalhães, Catarina Magalhães, Isidro Blanquet, Ana Paula Mucha, Ana Paula Mucha   +9 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

Community composition and abundance of complete ammonia oxidation (comammox) bacteria in the Lancang River cascade reservoir

Ecotoxicology and Environmental Safety, 2023
The construction of the reservoir has changed the nitrogen migration and transformation processes in the river, and a large amount of sediment deposition in the reservoir may also lead to the spatial differentiation of complete ammonia oxidation ...
Hang Ding, Jiahui Zhang, Yuchun Wang, Mingming Hu, Jie Wen, Shanze Li, Yufei Bao, Jianwei Zhao   +7 more
doaj   +1 more source

Microbial Nitrogen Metabolism in Chloraminated Drinking Water Reservoirs

mSphere, 2020
Ammonia availability due to chloramination can promote the growth of nitrifying organisms, which can deplete chloramine residuals and result in operational problems for drinking water utilities.
Sarah C. Potgieter, Zihan Dai, Stephanus N. Venter, Makhosazana Sigudu, Ameet J. Pinto   +4 more
doaj   +1 more source

Effect of Long-Term Fertilization on Ammonia-Oxidizing Microorganisms and Nitrification in Brown Soil of Northeast China

Frontiers in Microbiology, 2021
The objective of this study was to find out changes in ammonia oxidation microorganisms with respect to fertilizer as investigated by real-time polymerase chain reaction and high-throughput sequencing.
Fangfang Cai, Fangfang Cai, Fangfang Cai, Peiyu Luo, Peiyu Luo, Peiyu Luo, Jinfeng Yang, Jinfeng Yang, Jinfeng Yang, Muhammad Irfan, Shiyu Zhang, Shiyu Zhang, Shiyu Zhang, Ning An, Ning An, Ning An, Jian Dai, Jian Dai, Jian Dai, Xiaori Han, Xiaori Han, Xiaori Han   +21 more
doaj   +1 more source