Results 21 to 30 of about 6,257 (199)
Differential regulation of amoA and amoB gene copies in Nitrosomonas europaea [PDF]
FEMS Microbiology Letters, 2000 Nitrosomonas europaea contains two nearly identical copies of the operon, amoCAB, which encodes the ammonia monooxygenase (AMO) enzyme. Cells of N. europaea containing single mutations in either amoA or amoB gene copies were incubated in ammonium both prior to and after exposure to acetylene or light.
L Y, Stein +3 more
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Agriculture, 2023 Increases in nitrogen (N) deposition affect the nitrification and denitrification processes that are regulated by microorganisms. With the aim of understanding what happened to the soil nitrification and denitrification rates under the N application ...
Jiaqi Zhang, Yinghui Liu, Jingyi Dong
doaj +1 more source
amoA ‐based consensus phylogeny of ammonia‐oxidizing archaea and deep sequencing of amoA genes from soils of four different geographic regions [PDF]
Environmental Microbiology, 2011 Summary Ammonia‐oxidizing archaea (AOA) play an important role in nitrification and many studies exploit their amoA genes as marker for their diversity and abundance. We present an archaeal amoA consensus phylogeny based on all ...
Pester, Michael +8 more
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Bone & Joint Open, 2022 Aims: Treatment of end-stage anteromedial osteoarthritis (AMOA) of the knee is commonly approached using one of two surgical strategies: medial unicompartmental knee arthroplasty (UKA) or total knee arthroplasty (TKA). In this study we aim to investigate
Mette Mikkelsen +4 more
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Temporal and spatial coexistence of archaeal and bacterial amoA genes and gene transcripts in Lake Lucerne [PDF]
, 2013 Despite their crucial role in the nitrogen cycle, freshwater ecosystems are relatively rarely studied for active ammonia oxidizers (AO). This study of Lake Lucerne determined the abundance of both amoA genes and gene transcripts of ammonia-oxidizing ...
Vissers, E.W. +14 more
core +9 more sources
Global Occurrence of Archaeal amoA Genes in Terrestrial Hot Springs [PDF]
Applied and Environmental Microbiology, 2008 ABSTRACT Despite the ubiquity of ammonium in geothermal environments and the thermodynamic favorability of aerobic ammonia oxidation, thermophilic ammonia-oxidizing microorganisms belonging to the crenarchaeota kingdom have only recently been described.
Chuanlun L, Zhang +14 more
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NITRIFICATION AND NITRIFYING BACTERIA IN A COASTAL MICROBIAL MAT
Frontiers in Microbiology, 2015 The first step of nitrification, the oxidation of ammonia to nitrite, can be performed by ammonia-oxidizing archaea (AOA) or ammonium-oxidizing bacteria (AOB).
Haoxin eFan +3 more
doaj +1 more source
Diversity and distribution of amoA-type nitrifying and nirS-type denitrifying microbial communities in the Yangtze River estuary [PDF]
Biogeosciences, 2014 Coupled nitrification–denitrification plays a critical role in the removal of excess nitrogen, which is chiefly caused by humans, to mitigate estuary and coastal eutrophication.
Y. Zhang +4 more
doaj +1 more source
Journal of Industrial Microbiology & Biotechnology, 2010 A population shift of ammonia-oxidizing bacteria (AOB) was described within a bench-scale activated sludge process treating an industrial wastewater in a previous report (Kuo et al. in Environ Eng Sci 23:507-520, 2006). In this investigation, transcriptional levels (amoA mRNA-based) of the three AOB groups (i.e., RI-27, B2-3, and Nitrosomonas nitrosa ...
David H-W, Kuo +4 more
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Chroestia amoa Lowry & Fanini 2023, sp. nov.
, 2023 Published as part of Lowry, James K. & Fanini, Lucia, 2023, The Coastal Talitroid Amphipods of New Caledonia (Amphipoda: Talitroidea), pp. 471-484 in Records of the Australian Museum (Rec. Aust. Mus.) (Rec. Aust.
Lowry, James K., Fanini, Lucia
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