Results 11 to 20 of about 1,348 (145)

Transcriptional activity of ammonia oxidisers in response to soil temperature, moisture and nitrogen amendment [PDF]

Frontiers in Microbiology
The contrasting response of AOA, AOB, and comammox Nitrospira amoA transcript abundance to temperature, moisture, and nitrogen was investigated using soil microcosms.
Chris Chisholm, Hong Di, Keith Cameron, Andriy Podolyan, Jupei Shen, Limei Zhang, Kosala Sirisena, Xueying Che   +7 more
doaj   +2 more sources

Nitrification inhibitor chlorate and nitrogen substrates differentially affect comammox Nitrospira in a grassland soil [PDF]

Frontiers in Microbiology
IntroductionThrough the combined use of two nitrification inhibitors, Dicyandiamide (DCD) and chlorate with nitrogen amendment, this study aimed to investigate the contribution of comammox Nitrospira clade B, ammonia oxidizing bacteria (AOB) and archaea (
Anish S. Shah, Pei-Chun Hsu, Chris Chisholm, Andriy Podolyan, Keith Cameron, Jiafa Luo, Roland Stenger, Sam Carrick, Wei Hu, Scott A. Ferguson, Wenhua Wei, Jupei Shen, Limei Zhang, Hongbin Liu, Tongke Zhao, Wenxue Wei, Weixin Ding, Hong Pan, Yimeng Liu, Bowen Li, Jianjun Du, Hong J. Di   +21 more
doaj   +2 more sources

Genomic insight into strategy, interaction and evolution of nitrifiers in metabolizing key labile-dissolved organic nitrogen in different environmental niches [PDF]

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   +2 more sources

Metatranscriptomic Analysis Reveals Synergistic Activities of Comammox and Anammox Bacteria in Full-Scale Attached Growth Nitrogen Removal System. [PDF]

Environ Sci Technol
Leveraging comammox Nitrospira and anammox bacteria for shortcut nitrogen removal can drastically lower the carbon footprint of wastewater treatment facilities by decreasing aeration energy, carbon, alkalinity, and tank volume requirements while also ...
Johnston J, Vilardi K, Cotto I, Sudarshan A, Bian K, Klaus S, Bachmann M, Parsons M, Wilson C, Bott C, Pinto A.   +10 more
europepmc   +2 more sources

Comammox Nitrospira among dominant ammonia oxidizers within aquarium biofilter microbial communities. [PDF]

Appl Environ Microbiol
Nitrification by aquarium biofilters transforms ammonia waste (NH3/NH4+) to less toxic nitrate (NO3-) via nitrite (NO2-). Prior to the discovery of complete ammonia-oxidizing (“comammox” or CMX) Nitrospira, previous research revealed that ammonia ...
McKnight MM, Neufeld JD.
europepmc   +2 more sources

Evaluation of the process performance of comammox-like nitrospira dominant down-flow hanging sponge reactor with reduced nitrous oxide emissions

Water Research X
Nitrification/denitrification mitigates excess nitrogen in wastewater and reduces nutrient pollution in recipient surface waters but emits substantial amounts of nitrous oxide (N₂O).
Sota Kabasawa, Takahiro Watari, Yuki Sato, Yuga Hirakata, Masashi Hatamoto, Tsutomu Okubo, Carols Lopez Vazquez, Jules B. van Lier, Takashi Yamaguchi   +8 more
doaj   +2 more sources

Microbial community succession of home aquarium biofilters associated with early establishment of comammox <i>Nitrospira</i>. [PDF]

ISME Commun
Nitrification in aquarium biofilters transforms toxic ammonia (NH₃/NH₄+) into less toxic nitrate (NO₃-) via nitrite (NO₂-). Known freshwater aquarium nitrifiers include ammonia- and nitrite-oxidizing bacteria, ammonia-oxidizing archaea (AOA), and ...
McKnight MM, Szabolcs N, Graham A, Neufeld JD.   +3 more
europepmc   +2 more sources

Regulatory Mechanisms of Exogenous Acyl-Homoserine Lactones in the Aerobic Ammonia Oxidation Process Under Stress Conditions [PDF]

Microorganisms
This study investigated the mechanism by which N-acyl-homoserine lactone (AHL) signaling molecules influence ammonia-oxidizing microorganisms (AOMs) under inhibitory conditions.
Chen Qiu, Kailing Pan, Yuxuan Wei, Xiaolin Zhou, Qingxian Su, Xuejun Bi, Howyong Ng   +6 more
doaj   +2 more sources

Unveiling unique microbial nitrogen cycling and nitrification driver in coastal Antarctica [PDF]

Nature Communications
Largely removed from anthropogenic delivery of nitrogen (N), Antarctica has notably low levels of nitrogen. Though our understanding of biological sources of ammonia have been elucidated, the microbial drivers of nitrate (NO3 −) cycling in coastal ...
Ping Han, Xiufeng Tang, Hanna Koch, Xiyang Dong, Lijun Hou, Danhe Wang, Qian Zhao, Zhe Li, Min Liu, Sebastian Lücker, Guitao Shi   +10 more
doaj   +2 more sources

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   +2 more sources