Results 41 to 50 of about 66,906 (298)

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

open access: yesFrontiers 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   +5 more
doaj   +1 more source

Ammonia-oxidizing archaea have more important role than ammonia-oxidizing bacteria in ammonia oxidation of strongly acidic soils [PDF]

open access: yesThe ISME Journal, 2011
Abstract Increasing evidence demonstrated the involvement of ammonia-oxidizing archaea (AOA) in the global nitrogen cycle, but the relative contributions of AOA and ammonia-oxidizing bacteria (AOB) to ammonia oxidation are still in debate. Previous studies suggest that AOA would be more adapted to ammonia-limited oligotrophic conditions,
Li-Mei, Zhang   +3 more
openaire   +2 more sources

Serological studies on lithotrophic, ammonia oxidizing bacteria

open access: yesArchives of Microbiology, 1980
Rabbit antisera were prepared against living cells of six different ammonia oxidizing nitrifying bacteria. They were examined as to cross-reactivity in the agglutination test (Microtiter-system) with 24 nitrifier strains, including members of all known genera.
M, Wullenweber, H P, Koops
openaire   +4 more sources

Gene abundances of AOA, AOB, and anammox controlled by groundwater chemistry of the Pearl River Delta, China

open access: yesChina Geology, 2021
Ammonia-oxidizing archaea (AOA), ammonia-oxidizing bacteria (AOB), and anaerobic ammoniaoxidation (anammox) bacteria are very important contributors to nitrogen cycling in natural environments.
Kun Liu   +4 more
doaj   +1 more source

Methane-generating ammonia oxidizing nitrifiers within bio-filters in aquaculture tanks

open access: yesAMB Express, 2018
The discovery of aerobic and anammox bacteria capable of generating methane in bio-filters in freshwater aquaculture systems is generating interest in studies to understand the activity, diversity, distribution and roles of these environmental bacteria ...
Barry Kamira   +10 more
doaj   +1 more source

Ammonia-oxidizing bacteria respond to multifactorial global change [PDF]

open access: yesProceedings of the National Academy of Sciences, 2004
Recent studies have demonstrated that multiple co-occurring global changes can alter the abundance, diversity, and productivity of plant communities. Belowground processes, often mediated by soil microorganisms, are central to the response of these communities to global change.
Hans-Peter, Horz   +3 more
openaire   +2 more sources

Cultivation of Autotrophic Ammonia-Oxidizing Archaea from Marine Sediments in Coculture with Sulfur-Oxidizing Bacteria

open access: yesApplied and Environmental Microbiology, 2010
The role of ammonia-oxidizing archaea (AOA) in nitrogen cycling in marine sediments remains poorly characterized. In this study, we enriched and characterized AOA from marine sediments. Group I.1a crenarchaea closely related to those identified in marine
Byoung-Joon Park   +5 more
semanticscholar   +1 more source

Competition between Ammonia-Oxidizing Archaea and Bacteria from Freshwater Environments

open access: yesApplied and Environmental Microbiology, 2021
Nitrification is an important process in the global nitrogen cycle. The first step, ammonia oxidation to nitrite, can be carried out by ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB).
Elizabeth French   +2 more
semanticscholar   +1 more source

Ammonia-oxidizing archaea and ammonia-oxidizing bacteria in six full-scale wastewater treatment bioreactors [PDF]

open access: yesApplied Microbiology and Biotechnology, 2011
In this study, dideoxy sequencing and 454 high-throughput sequencing were used to analyze diversities of the ammonia monooxygenase (amoA) genes and the 16S rRNA genes of ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) in six municipal wastewater treatment plants.
Tong, AHY   +4 more
openaire   +4 more sources

Affinity informs environmental cooperation between ammonia-oxidizing archaea (AOA) and anaerobic ammonia-oxidizing (Anammox) bacteria [PDF]

open access: yesThe ISME Journal, 2019
Abstract Anaerobic ammonia-oxidizing (Anammox) bacteria (AnAOB) rely on nitrite supplied by ammonia-oxidizing bacteria (AOB) and archaea (AOA). Affinities for ammonia and oxygen play a crucial role in AOA/AOB competition and their association with AnAOB.
Levi L. Straka   +4 more
semanticscholar   +3 more sources

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