Results 1 to 10 of about 31,651 (247)

Ammonia-oxidizing archaea and complete ammonia-oxidizing Nitrospira in water treatment systems [PDF]

Water Research X, 2022
Nitrification, the oxidation of ammonia to nitrate via nitrite, is important for many engineered water treatment systems. The sequential steps of this respiratory process are carried out by distinct microbial guilds, including ammonia-oxidizing bacteria (
Sarah Al-Ajeel, Emilie Spasov, Laura A. Sauder, Michelle M. McKnight, Josh D. Neufeld   +4 more
doaj   +5 more sources

Adaptive traits of Nitrosocosmicus clade ammonia-oxidizing archaea [PDF]

mBio
Nitrification is a core process in the global nitrogen (N) cycle mediated by ammonia-oxidizing microorganisms, including ammonia-oxidizing archaea (AOA) as a key player.
Saem Han, Seongwook Kim, Christopher J. Sedlacek, Adeel Farooq, Chihong Song, Sujin Lee, Shurong Liu, Nicolas Brüggemann, Lena Rohe, Miye Kwon, Sung-Keun Rhee, Man-Young Jung   +11 more
doaj   +6 more sources

Competition between ammonia-oxidizing archaea and complete ammonia oxidizers from freshwater environments. [PDF]

Appl Environ Microbiol
Aerobic ammonia oxidizers (AOs) are prokaryotic microorganisms that contribute to the global nitrogen cycle by performing the first step of nitrification, the oxidation of ammonium to nitrite and nitrate.
Ghimire-Kafle S, Weaver ME, Kimbrel MP, Bollmann A.   +3 more
europepmc   +4 more sources

A Review of Ammonia-Oxidizing Archaea and Anaerobic Ammonia-Oxidizing Bacteria in the Aquaculture Pond Environment in China [PDF]

Frontiers in Microbiology, 2021
The excessive ammonia produced in pond aquaculture processes cannot be ignored. In this review, we present the distribution and diversity of ammonia-oxidizing archaea (AOA) and anaerobic ammonia-oxidizing bacteria (AnAOB) in the pond environment ...
Shimin Lu, Xingguo Liu, Chong Liu, Guofeng Cheng, Runfeng Zhou, Runfeng Zhou, Yayuan Li, Yayuan Li   +7 more
doaj   +3 more sources

Pathways of N₂O production by marine ammonia-oxidizing archaea determined from dual-isotope labeling. [PDF]

Proc Natl Acad Sci U S A, 2023
Significance Ammonia-oxidizing archaea (AOA) are the major source of marine nitrous oxide (N2O); however, the cellular kinetics and pathways of archaeal N2O production remain unclear.
Wan XS, Hou L, Kao SJ, Zhang Y, Sheng HX, Shen H, Tong S, Qin W, Ward BB.   +8 more
europepmc   +2 more sources

Ammonia-oxidizing archaea possess a wide range of cellular ammonia affinities. [PDF]

ISME J, 2022
Nitrification, the oxidation of ammonia to nitrate, is an essential process in the biogeochemical nitrogen cycle. The first step of nitrification, ammonia oxidation, is performed by three, often co-occurring guilds of chemolithoautotrophs: ammonia ...
Jung MY, Sedlacek CJ, Kits KD, Mueller AJ, Rhee SK, Hink L, Nicol GW, Bayer B, Lehtovirta-Morley L, Wright C, de la Torre JR, Herbold CW, Pjevac P, Daims H, Wagner M.   +14 more
europepmc   +3 more sources

Archaeal lipids trace ecology and evolution of marine ammonia-oxidizing archaea. [PDF]

Proc Natl Acad Sci U S A, 2022
Significance Archaeal lipids are ubiquitous in marine sediments and are commonly used to infer past marine sea surface temperatures. However, these molecules can also be used to investigate the ecological and evolutionary history of marine archaea.
Rattanasriampaipong R, Zhang YG, Pearson A, Hedlund BP, Zhang S.   +4 more
europepmc   +2 more sources

Comammox Nitrospira and Ammonia-Oxidizing Archaea Are Dominant Ammonia Oxidizers in Sediments of an Acid Mine Lake Containing High Ammonium Concentrations. [PDF]

Appl Environ Microbiol, 2023
Ammonia-oxidizing archaea (AOA) was previously considered the sole dominant ammonia oxidizer in acidic environments. This study, however, found that complete ammonia oxidation (comammox) Nitrospira was also a dominant ammonia oxidizer in the sediments of
Li D, Ren Z, Zhou Y, Jiang L, Zheng M, Liu G.   +5 more
europepmc   +2 more sources

Postglacial adaptations enabled colonization and quasi-clonal dispersal of ammonia-oxidizing archaea in modern European large lakes. [PDF]

Sci Adv, 2023
Ammonia-oxidizing archaea (AOA) play a key role in the aquatic nitrogen cycle. Their genetic diversity is viewed as the outcome of evolutionary processes that shaped ancestral transition from terrestrial to marine habitats.
Ngugi DK, Salcher MM, Andrei AS, Ghai R, Klotz F, Chiriac MC, Ionescu D, Büsing P, Grossart HP, Xing P, Priscu JC, Alymkulov S, Pester M.   +12 more
europepmc   +2 more sources

Novel order-level lineage of ammonia-oxidizing archaea widespread in marine and terrestrial environments. [PDF]

ISME J
Ammonia-oxidizing archaea (AOA) are among the most ubiquitous and abundant archaea on Earth, widely distributed in marine, terrestrial, and geothermal ecosystems.
Zheng Y, Wang B, Gao P, Yang Y, Xu B, Su X, Ning D, Tao Q, Li Q, Zhao F, Wang D, Zhang Y, Li M, Winkler MH, Ingalls AE, Zhou J, Zhang C, Stahl DA, Jiang J, Martens-Habbena W, Qin W.   +20 more
europepmc   +2 more sources