Results 11 to 20 of about 1,770 (212)

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

Environ Microbiol Rep
Isoprenoid quinones are important compounds in most organisms. They are essential in electron and proton transport in respiratory and photosynthetic electron transport chains, and additional functions include oxidative stress defence.
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   +5 more sources

Comammox Nitrospira abundance and contribution to nitrification in a forested landscape

Ecosphere
Nitrification in terrestrial ecosystems is mediated by NH4+‐oxidizing bacteria (AOB) and archaea (AOA). Presently, we understand relatively little about how physiological capacities and environmental tolerances influence their community composition, and ...
Donald R. Zak, Rima A. Upchurch
doaj   +2 more sources

Genetic and transcriptional profiles of ammonia oxidizing communities in Bohai sediments: abundance, activity, and environmental correlations [PDF]

Frontiers in Microbiology
Ammonia oxidation, a crucial part in nitrogen cycle, is thought to be jointly driven by ammonia-oxidizing archaea (AOA), ammonia-oxidizing bacteria (AOB), and complete ammonia oxidation (comammox) in the ocean.
Yining Jiang, Xue Lou, Mingyang Wang, Minggang Zheng, Zhiyao Wang, Hui Chen   +5 more
doaj   +2 more sources

Potential survival strategies of novel comammox and nitrite-oxidizing Nitrospira synthesizing osmoprotectants in a wastewater microbiome treating high-ammonia brackish landfill leachate [PDF]

Microbiome
Background In the late stages of landfill operation, leachate becomes brackish and contains high concentrations of ammonia with limited organic carbon.
Shohei Yasuda, Alejandro Palomo, Barth F. Smets, Akihiko Terada   +3 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

Arbuscular mycorrhiza suppresses microbial abundance, and particularly that of ammonia oxidizing bacteria, in agricultural soils [PDF]

Frontiers in Microbiology
Interactions between arbuscular mycorrhizal (AM) fungi and ammonia-oxidizing (AO) microorganisms, two important microbial guilds contributing to soil-plant mineral nutrient cycling, are complex, given the high variability of soil biological, physical ...
Daquan Sun, Petr Šmilauer, Petra Pjevac, Martin Rozmoš, Sándor T. Forczek, Michala Kotianová, Hana Hršelová, Petra Bukovská, Jan Jansa   +8 more
doaj   +2 more sources

Occurrence and Roles of Comammox Bacteria in Water and Wastewater Treatment Systems: A Critical Review

Engineering, 2022
Nitrogen removal is a critical process in water treatment plants (WTPs) and wastewater treatment plants (WWTPs). The recent discovery of a novel bacterial process, complete ammonia oxidation (comammox, CMX), has refuted a century-long perception of the ...
Naga Raju Maddela, Zhihao Gan, Yabing Meng, Fuqiang Fan, Fangang Meng   +4 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
0-AbstractLeveraging comammoxNitrospiraand 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 potentially reducing nitrous oxide emissions.
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   +3 more sources

Growth of complete ammonia oxidizers on guanidine. [PDF]

Nature
Guanidine is a chemically stable nitrogen compound that is excreted in human urine and is widely used in manufacturing of plastics, as a flame retardant and as a component of propellants, and is well known as a protein denaturant in biochemistry 1–3 ...
Palatinszky M, Herbold CW, Sedlacek CJ, Pühringer D, Kitzinger K, Giguere AT, Wasmund K, Nielsen PH, Dueholm MKD, Jehmlich N, Gruseck R, Legin A, Kostan J, Krasnici N, Schreiner C, Palmetzhofer J, Hofmann T, Zumstein M, Djinović-Carugo K, Daims H, Wagner M.   +20 more
europepmc   +3 more sources

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