Results 61 to 70 of about 163 (120)

Lithology-driven soil properties control of N2O production by ammonia oxidizers in subtropical forest soils

Geoderma
Lithology can strongly influence soil's physical and chemical properties, significantly affecting soil nitrogen (N) transformation rates. Ammonia-oxidizing archaea (AOA), ammonia-oxidizing bacteria (AOB) and complete ammonia oxidizers (comammox ...
Xiangyu Wan, Xinyi Yang, Yuling Zhang, Peilei Hu, Pengpeng Duan, Dejun Li, Kelin Wang   +6 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

Heterotrophic ammonia oxidation by Alcaligenes balances ROS generation and terminal electron transport

mLife, Volume 4, Issue 5, Page 527-538, October 2025.
Abstract Heterotrophic nitrifiers are bacteria that aerobically oxidize ammonia in the presence of organic carbon sources, which differs from autotrophic nitrifiers that extract energy from ammonia oxidation for cell metabolism and growth. The physiological significance of heterotrophic ammonia oxidation remains unclear, even though this process has ...
Runhua Wang, Xiaokang Wang, Yue Zhao, Xize Zhao, Tong Wu, Yulin Wang, Ruofei Li, Jun Yao, Chengying Jiang, Ji‐Guo Qiu, De‐Feng Li, Shuang‐Jiang Liu   +11 more
wiley   +1 more source

DNA- and RNA-SIP Reveal Nitrospira spp. as Key Drivers of Nitrification in Groundwater-Fed Biofilters

mBio, 2019
Nitrification, the oxidative process converting ammonia to nitrite and nitrate, is driven by microbes and plays a central role in the global nitrogen cycle.
Arda Gülay, S. Jane Fowler, Karolina Tatari, Bo Thamdrup, Hans-Jørgen Albrechtsen, Waleed Abu Al-Soud, Søren J. Sørensen, Barth F. Smets   +7 more
doaj   +1 more source

Substrate Effect on the Contribution of Ammonium and Urea to Marine Nitrification and Nitrous Oxide Production

Environmental Microbiology, Volume 27, Issue 10, October 2025.
The urea to ammonium concentration ratio is a good predictor of the relative importance of urea and ammonium to nitrite and N2O production in the ocean. In addition, the urea to ammonium ratio may be a key factor in shaping the genetic capability of marine ammonia‐oxidising archaea for urea utilisation.
Weiyi Tang, Catherine Hexter, Rongbo Dai, Samantha G. Fortin, John C. Tracey, Naomi Intrator, Moriah A. Kunes, Xianhui S. Wan, Amal Jayakumar, Dalin Shi, Bess B. Ward   +10 more
wiley   +1 more source

Subsoiling Combined With Winter Active Italian Ryegrass Can Reduce Nitrous Oxide Emissions Without Increasing Nitrate Leaching: Evidence From Lysimeter and Field Plot Trials

Soil Use and Management, Volume 41, Issue 4, October‐December 2025.
ABSTRACT Subsoiling is a common practice for improving soil structure and has recently been recognised for its potential to reduce nitrous oxide (N2O) emissions. However, its impact on nitrate (NO3−–N) leaching must also be considered if it is to be used as a mitigation strategy. This study investigated N2O emissions, NO3−–N leaching and grass yield in
Juan Liu, Timothy Clough, Sam Carrick, Jiafa Luo, Andriy Podolyan, Naomi Wells, Jupei Shen, Chengjun Zhang, Lianfeng Du, Hong Pan, Limei Zhang, Hong J. Di   +11 more
wiley   +1 more source

Investigating the Atmospheric Microbial Ecosystem Through Theory, Bioenergetics, and Numerical Modeling: A Breath of Fresh Air for Aeromicrobiology

Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 8, August 2025.
Abstract The atmosphere may constitute the Earth's largest microbial ecosystem, yet it remains the least understood. While microorganisms can persist and may even thrive in the polyextremes of the Earth's atmosphere, it is still unknown whether the atmosphere sustains an active microbial community.
Eloi Martinez‐Rabert, Laura Molares Moncayo, Elizabeth Trembath‐Reichert, Rachael Lappan, Chris Greening, Jacqueline Goordial, James A. Bradley   +6 more
wiley   +1 more source

Exploring Suitable Nitrification Inhibitor in an Intensively Cultivated Greenhouse Soil and Its Effect on the Abundance and Community of Soil Ammonia Oxidizers

Agronomy
The application of nitrification inhibitors (NIs) is an effective way to reduce soil nitrogen (N) losses and increase crop N uptake. Yet, the efficacy of NIs commonly varies with dosages, crop systems and soil environmental conditions.
Xing Liu, Yanan Cheng, Ying Zhang, Fei Wang, Yonggang Li, Changwei Shen, Bihua Chen   +6 more
doaj   +1 more source

Contrasting response of comammox Nitrospira, ammonia oxidising bacteria, and archaea to soil pH and nitrogen inputs

Science of The Total Environment
This study aimed to investigate the effect of soil pH change, and nitrogen amendment on ammonia oxidiser abundance and comammox Nitrospira community composition. The experimental design used soil mesocosms placed in a temperature-controlled incubator for 90 days.
Chisholm, C, Di, Hong, Cameron, Keith, Podolyan, Andriy, Shen, J, Zhang, L, Sirisena, Kosala, Godsoe, William   +7 more
openaire   +3 more sources

Application of hierarchical oligonucleotide primer extension (HOPE) to assess relative abundances of ammonia- and nitrite-oxidizing bacteria

BMC Microbiology, 2017
Background Establishing an optimal proportion of nitrifying microbial populations, including ammonia-oxidizing bacteria (AOB), nitrite-oxidizing bacteria (NOB), complete nitrite oxidizers (comammox) and ammonia-oxidizing archaea (AOA), is important for ...
Giantommaso Scarascia, Hong Cheng, Moustapha Harb, Pei-Ying Hong   +3 more
doaj   +1 more source