Results 61 to 70 of about 839 (152)

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

Competitive and substrate limited environments drive metabolic heterogeneity for comammox Nitrospira

ISME Communications, 2023
Abstract Nitrospira has been revealed as a high versatile genus. Although previously considered only responsible for the conversion of nitrite to nitrate, now we know that Nitrospira can perform complete ammonia oxidation to nitrate too (comammox).
Eloi Martinez-Rabert, Cindy J Smith, William T Sloan, Rebeca Gonzalez-Cabaleiro   +3 more
openaire   +2 more sources

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

Growth of comammox Nitrospira is inhibited by nitrification inhibitors in agricultural soils [PDF]

Journal of Soils and Sediments, 2019
Purpose: The discovery of comammox Nitrospira being capable of complete oxidising ammonia to nitrate radically challenged the conventional concept of two-step nitrification. However, the response of comammox Nitrospira to nitrification inhibitors (NIs) and their role in soil nitrification remain largely unknown, which has hindered our ability to ...
Chaoyu Li, Hang-Wei Hu, Qing-Lin Chen, Deli Chen, Ji-Zheng He   +4 more
openaire   +4 more sources

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

Biogeographic Patterns and Ecological Roles of Microorganisms in Sediments Along an Estuarine Salinity Gradient

Environmental Microbiology Reports, Volume 17, Issue 4, August 2025.
From the river coastal to the adjacent sea waters, the diversity characteristics, community assembly processes, functional potential and community compositions of sedimentary microbial communities exhibit significant changes with increasing salinity levels.
Zongxiao Zhang, Guo Yuan, Xakila Turgun, Zulpinur Turgun, Lijun Hou, Mao Ye, Yonghui Wang, Xingbin Xu   +7 more
wiley   +1 more source

Exploring Sulfate as an Alternative Electron Acceptor: A Potential Strategy to Mitigate N2O Emissions in Upland Arable Soils

Global Change Biology, Volume 31, Issue 8, August 2025.
This study explored the use of sulfate‐based soil amendments as a new method to mitigate N2O—a powerful greenhouse gas—from agricultural soils. Laboratory and field experiments showed sulfate treatments significantly lowered N2O emissions without negatively affecting crop yields, mainly by altering soil microbial processes.
Hyun Ho Lee, Hanbeen Kim, Ye Lim Park, Marcus A. Horn, Jeongeun Kim, Jaehyun Lee, Sakae Toyoda, Jeongeun Yun, Hojeong Kang, Sang Yoon Kim, Jinho Ahn, Chang Oh Hong   +11 more
wiley   +1 more source

Compound drought-heat legacies promote the contribution of comammox Nitrospira to N2O emissions: as evidenced from both acidic and alkaline soils

Geoderma
The responses of complete ammonia oxidization (comammox) to compound drought and heat and their contributions to post-drought nitrous oxide (N2O) emissions remain unclear.
Keyi Zhang, Shuoshuo Wu, Wangying Ding, Jun Li, Baowei Hu, Rui Tao, Guixin Chu   +6 more
doaj   +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