Results 101 to 110 of about 6,257 (199)

Neighbour joining consensus tree of archaeal amoA phylotypes.

, 2014
Colored branches indicate the Nitrosotalea cluster (green) and Nitrososphaera cluster (blue). Boot strap values are indicated at nodes. Cluster designations follow the classification of Pester et al. [25] based on nucleic acid alignment of archaeal amoA.
Vidya de Gannes (529416), Gaius Eudoxie (529417), William J. Hickey (218484)   +2 more
core   +1 more source

Gene-Level Shift in Response to Synthetic Nitrogen Addition Promotes Larix olgensis (Ussurian Larch) Growth in a Short-Term Field Trial

Life
Climate change and injudicious nitrogen addition alter the soil physico-chemical properties and microbial activity in oligotrophic forest soil, which disrupts the nitrogen cycle balance.
Muhammad Jamal Ameer, Yushan Liu, Siyu Yan, Tongbao Qu   +3 more
doaj   +1 more source

Direct Detection by In Situ PCR of the amoA Gene in Biofilm Resulting from a Nitrogen Removal Process

, 2001
Ammonia oxidation is a rate-limiting step in the biological removal of nitrogen from wastewater. Analysis of microbial communities possessing the amoA gene, which is a small subunit of the gene encoding ammonia monooxygenase, is ...
Tatsuhiko Hoshino, Akira Hirata, Naohiro Noda, Yuhei Inamori, Satoshi Tsuneda   +4 more
core   +1 more source

Distributions of crenarchaeal amoA genes and transcripts in the Pacific Ocean

, 2010
Planktonic Crenarchaea are thought to play a key role in chemolithotrophic ammonia oxidation, a critical step of the marine nitrogen (N) cycle. In this study, we examined the spatial distributions of ammonia-oxidizing Crenarchaea across a large (∼5200 km) region of the central Pacific Ocean.
Church, Matthew J., Wai, Brenner, Karl, David M., DeLong, Edward   +3 more
openaire   +2 more sources

Identification of major subgroups of ammonia-oxidizing bacteria in environmental samples by T-RFLP analysis of amoA PCR products

, 2000
A cloning-independent method based on T-RFLP (terminal restriction fragment length polymorphism) analysis of amoA PCR products was developed to identify major subgroups of autotrophic ammonia oxidizers of the beta-subclass of the class Proteobacteria in ...
Jan-Henrich Rotthauwe, Werner Liesack, Thomas Lukow, Horz, H., Rotthauwe, J., Lukow, T., Hans-Peter Horz, Liesack, W. ; https://orcid.org/   +7 more
core   +1 more source

Quantification of amoA and 16S rRNA genes in the soil samples at different irrigation times.

a) amoA-AOA gene. b) amoA-AOB gene. c) 16S rRNA gene. d) Gene copy ratios.
Christina Siebe (133617), Rocío J. Alcántara-Hernández (10149282), Alba Savin-Gámez (18349665), María Soledad Vásquez-Murrieta (18349668), José Q. García-Maldonado (9273984), Blanca Prado (16628472), Eduardo J. Aguilar-Rangel (18349662)   +6 more
core   +1 more source

Potential nitrification rate (A), bacterial and archaea amoA genes abundances (B) in different land cover.

, 2015
FL, farmland, AFL, abandoned farmland, LL, Lolium perenne L. land, CL, Caragana korshinskii Kom. land. The amoA gene copy numbers were log-transformed. Values are mean ± standard error (n = 5).
Xiaoming Shao (769695), Zhu Chen (3106), Guochun Ding (769696), Yanbin Guo (673184), Wenliang Wu (568030), Li Li (14993)   +5 more
core   +1 more source

Global occurrence and biogeography of putative archaeal amoA genes in terrestrial hot springs

, 2008
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.
Zhang, Chaunlun L., Wiegel, Juergen, Li, W-J., Zhao, W., Romanek, C., Hedlund, Brian P., Bagwell, C., Chen, J., Song, Z., Inskeep, W. P., Gao, L., Ye, Qi, Huang, Zhiyong   +12 more
core  

Additional file 1: of The application of high-throughput sequencing technology to analysis of amoA phylogeny and environmental niche specialisation of terrestrial bacterial ammonia-oxidisers

, 2019
Figure S1. Full amoA (A) and 16S rRNA (B) gene trees for the bacterial ammonia oxidiser reference sequences. Figure S2. Congruence of amoA and 16S rRNA gene phylogenetic trees for the bacterial ammonia oxidiser reference sequences.
Axel Aigle (6917099), James Prosser (6917102), Cécile Gubry-Rangin (3322182)   +2 more
core   +1 more source

Diversity and distribution of amoA-type nitrifying and nirS-type denitrifying microbial communities in the Yangtze River estuary

, 2014
973 program [2013CB955700]; NSFC [41176095, 91028001, 41121091, 41023007]; OPWSR [201105021]; [GASI-03-01-02-03]; [GASI-03-01-02-05]Coupled nitrification-denitrification plays a critical role in the removal of excess nitrogen, which is chiefly caused by ...
Xie, X., Kao, S. -J., 焦念志, Jiao, N., Hsiao, S. S. -Y., 张瑶, Zhang, Y.   +6 more
core