Results 11 to 20 of about 48,601 (301)

Ammonia-oxidizing archaea have more important role than ammonia-oxidizing bacteria in ammonia oxidation of strongly acidic soils [PDF]

The ISME Journal, 2011
Abstract Increasing evidence demonstrated the involvement of ammonia-oxidizing archaea (AOA) in the global nitrogen cycle, but the relative contributions of AOA and ammonia-oxidizing bacteria (AOB) to ammonia oxidation are still in debate. Previous studies suggest that AOA would be more adapted to ammonia-limited oligotrophic conditions,
Li-Mei, Zhang, Hang-Wei, Hu, Ju-Pei, Shen, Ji-Zheng, He   +3 more
openaire   +4 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

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

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

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

Comparison of Novel and Established Nitrification Inhibitors Relevant to Agriculture on Soil Ammonia- and Nitrite-Oxidizing Isolates

Frontiers in Microbiology, 2020
Nitrification inhibitors (NIs) applied to soil reduce nitrogen fertilizer losses from agro-ecosystems. NIs that are currently registered for use in agriculture appear to selectively inhibit ammonia-oxidizing bacteria (AOB), while their impact on other ...
Evangelia S. Papadopoulou, Eleftheria Bachtsevani, Eleni Lampronikou, Eleni Adamou, Afroditi Katsaouni, Sotirios Vasileiadis, Cécile Thion, Urania Menkissoglu-Spiroudi, Graeme W. Nicol, Dimitrios G. Karpouzas   +9 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

Urease-Encoding Genes in Ammonia-Oxidizing Bacteria [PDF]

Applied and Environmental Microbiology, 2004
ABSTRACT Many but not all ammonia-oxidizing bacteria (AOB) produce urease (urea amidohydrolase, EC 3.5.1.5) and are capable of using urea for chemolithotrophic growth. We sequenced the urease operons from two AOB, the β-proteobacterium Nitrosospira sp.
Koper, T. E., El-Sheikh, A. L., Norton, Jeanette M., Klotz, M. G.   +3 more
openaire   +3 more sources

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