Results 21 to 30 of about 1,348 (145)

Hydrazine Synthase From Anammox Is Inhibited by Linear and Aromatic Alkynes. [PDF]

Environ Microbiol
Linear and aromatic alkynes inhibit anammox in culture and in wetlands. The inhibition by alkynes is specific to the hydrazine synthase, a key enzyme in the anammox pathway. ABSTRACT N2O emissions by nitrifiers are often estimated using selective inhibitors, such as 1‐alkynes.
Maryan C, Nuijten GHL, Crombie AT, Lücker S, Gibson V, Hernández M, Murrell JC, Lehtovirta-Morley LE.   +7 more
europepmc   +2 more sources

Unusual Plastoquinones in Non-Phototrophic Nitrifying Bacteria. [PDF]

Environ Microbiol Rep
Chemolithoautotrophic nitrifying bacteria of the genus Nitrospira exclusively possess unusual methyl‐plastoquinones with a standard redox potential below that of canonical plastoquinone and ubiquinone, suggesting functional roles in bidirectional electron transport.
Bale NJ, Fujimura H, Pjevac P, Koenen M, Ikeda H, Itagaki S, Yamamoto Y, Palmetzhofer J, Sedlacek CJ, Palabikyan H, Sinninghe Damsté JS, Wagner M, Shiigi H, Daims H.   +13 more
europepmc   +2 more sources

Comammox Nitrospira Clade B is the most abundant complete ammonia oxidizer in a dairy pasture soil and inhibited by dicyandiamide and high ammonium concentrations

Frontiers in Microbiology, 2022
The recent discovery of comammox Nitrospira, a complete ammonia oxidizer, capable of completing the nitrification on their own has presented tremendous challenges to our understanding of the nitrification process.
Pei-Chun (Lisa) Hsu, Hong J. Di, Keith Cameron, Andriy Podolyan, Henry Chau, Jiafa Luo, Blair Miller, Sam Carrick, Paul Johnstone, Scott Ferguson, Wenhua Wei, Jupei Shen, Limei Zhang, Hongbin Liu, Tongke Zhao, Wenxue Wei, Weixin Ding, Hong Pan, Yimeng Liu, Bowen Li   +19 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

Salinity changes the nitrification activity and community composition of comammox Nitrospira in intertidal sediments of Yangtze River estuary

mSystems, 2023
The newly discovered complete ammonia-oxidizing (comammox) Nitrospira has been identified in different environments, including coastal environments, where salinity is one of the most important factors for the abundance and activity of nitrifiers.
Ran Jiang, Wen-Jing Qin, Ru-Yi Zhang, Kai Zhang, Xing Huang, Yong Li, Chen-Hao Zhou, Ting Zhu, Yan Zhang, Bin Zou, Ming Nie, Sung-Keun Rhee, Zhe-Xue Quan   +12 more
doaj   +1 more source

Photoinhibition of comammox reaction in Nitrospira inopinata in a dose- and wavelength-dependent manner

Frontiers in Microbiology, 2022
Apparent contribution of complete ammonia-oxidizing organisms (comammox) to the global nitrogen cycle highlights the necessity for understanding niche differentiation of comammox bacteria among other ammonia oxidizers. While the high affinity for ammonia
Ekaterina Y. Gottshall, Bruce Godfrey, Bo Li, Britt Abrahamson, Wei Qin, Mari Winkler   +5 more
doaj   +1 more source

Differential responses of canonical nitrifiers and comammox Nitrospira to long-term fertilization in an Alfisol of Northeast China

Frontiers in Microbiology, 2023
The newly identified complete ammonia oxidizer (comammox) that converts ammonia directly into nitrate has redefined the long-held paradigm of two-step nitrification mediated by two distinct groups of nitrifiers.
Yanan Wang, Xibai Zeng, Qiang Ma, Yang Zhang, Wantai Yu, Zhong Zheng, Nan Zhang, Liyang Xu   +7 more
doaj   +1 more source

Abundance and Niche Differentiation of Comammox in the Sludges of Wastewater Treatment Plants That Use the Anaerobic–Anoxic–Aerobic Process

Life, 2022
Complete ammonia oxidizers (comammox), which directly oxidize ammonia to nitrate, were recently identified and found to be ubiquitous in artificial systems.
Sheng-Nan Zhang, Jian-Gong Wang, Dan-Qi Wang, Qiu-Yue Jiang, Zhe-Xue Quan   +4 more
doaj   +1 more source

Distribution and Diversity of Comammox Nitrospira in Coastal Wetlands of China

Frontiers in Microbiology, 2020
Complete ammonia oxidizers (comammox), able to individually oxidize ammonia to nitrate, are considered to play a significant role in the global nitrogen cycle.
Dongyao Sun, Xiufeng Tang, Mengyue Zhao, Zongxiao Zhang, Lijun Hou, Min Liu, Min Liu, Baozhan Wang, Uli Klümper, Ping Han, Ping Han, Ping Han   +11 more
doaj   +1 more source

Variation, distribution, and diversity of canonical ammonia-oxidizing microorganisms and complete-nitrifying bacteria in highly contaminated ecological restoration regions in the Siding mine area

Ecotoxicology and Environmental Safety, 2021
Canonical ammonia-oxidizing archaea (AOA), ammonia-oxidizing bacteria (AOB) and complete-nitrifying bacteria (comammox) exist in a variety of ecosystems.
Yi Li, Ying Liang, Haichun Zhang, Yuan Liu, Jing Zhu, Jie Xu, Zhenming Zhou, Jiangming Ma, Kehui Liu, Fangming Yu   +9 more
doaj   +1 more source