Results 31 to 40 of about 2,518,592 (205)

Global ecological pattern of ammonia-oxidizing archaea. [PDF]

PLoS ONE, 2013
BACKGROUND: The global distribution of ammonia-oxidizing archaea (AOA), which play a pivotal role in the nitrification process, has been confirmed through numerous ecological studies.
Huiluo Cao, Jean-Christophe Auguet, Ji-Dong Gu   +2 more
doaj   +1 more source

Unifying the global phylogeny and environmental distribution of ammonia-oxidising archaea based on amoA genes [PDF]

Nature Communications, 2018
AbstractAmmonia-oxidising archaea (AOA) are ubiquitous and abundant in nature and play a major role in nitrogen cycling. AOA have been studied intensively based on the amoA gene (encoding ammonia monooxygenase subunit A), making it the most sequenced functional marker gene.
Ricardo J. Eloy Alves, Bui Quang Minh, Tim Urich, Arndt von Haeseler, Christa Schleper   +4 more
openaire   +5 more sources

Nitrogen Significantly Affected N Cycling Functional Gene Abundances Compared with Phosphorus and Drought in an Alpine Meadow

Agronomy, 2023
Human activities and global climate change have greatly increased nitrogen (N) and phosphorus (P) inputs and altered precipitation patterns in alpine meadows.
Haiyan Li, Jiaqi Zhang, Dashuan Tian, Yinghui Liu, Jingyi Dong   +4 more
doaj   +1 more source

Impacts of organic and conventional crop management on diversity and activity of free-living nitrogen fixing bacteria and total bacteria are subsidiary to temporal effects [PDF]

, 2012
A three year field study (2007-2009) of the diversity and numbers of the total and metabolically active free-living diazotophic bacteria and total bacterial communities in organic and conventionally managed agricultural soil was conducted at the ...
Orr, Caroline, Carlo Leifert, Julia M. Cooper, Cummings, Stephen P., Caroline H. Orr, Stephen P. Cummings, Cooper, Julia M., Stephen P Cummings, Julia M. Cooper (106318), Cooper, Julia, Julia M Cooper, Carlo Leifert (106315), Orr, Caroline H.; id_orcid, Stephen P. Cummings (106316), Cummings, Stephen, Caroline H. Orr (106313), Caroline H Orr, Leifert, Carlo   +17 more
core   +1 more source

Effects of macrobenthic bioturbation on the abundance and community composition of ammonia-oxidizing prokaryotes under different temperatures

Journal of Freshwater Ecology, 2017
In order to investigate the effects of macrobenthos on the abundance and community composition of ammonia-oxidizing prokaryotes under different temperature conditions, laboratory microcosms containing two kinds of macrobenthos (Corbicula fluminea and ...
Dayong Zhao, Xinyi Cao, Jin Zeng, Rui Huang, Zhongbo Yu   +4 more
doaj   +1 more source

Cloning, mutagenesis, and nucleotide sequence of a siderophore biosynthetic gene (amoA) from Aeromonas hydrophila [PDF]

Journal of Bacteriology, 1991
Many isolates of the Aeromonas species produce amonabactin, a phenolate siderophore containing 2,3-dihydroxybenzoic acid (2,3-DHB). An amonabactin biosynthetic gene (amoA) was identified (in a Sau3A1 gene library of Aeromonas hydrophila 495A2 chromosomal DNA) by its complementation of the requirement of Escherichia coli SAB11 for exogenous 2,3-DHB to ...
S, Barghouthi, S M, Payne, J E, Arceneaux, B R, Byers   +3 more
openaire   +2 more sources

Data for: establishment and assessment of an amplicon sequencing method targeting the amoA gene for ammonia-oxidizing bacteria by MOTHUR

, 2021
The template and taxonomic files of amoA gene of ammonia-oxidizing bacteria for processing the high throughput sequencing data with the ...
Hong, Y (via Mendeley Data)
core   +1 more source

Response of the abundance of key soil microbial nitrogen-cycling genes to multi-factorial global changes. [PDF]

PLoS ONE, 2013
Multiple co-occurring environmental changes are affecting soil nitrogen cycling processes, which are mainly mediated by microbes. While it is likely that various nitrogen-cycling functional groups will respond differently to such environmental changes ...
Ximei Zhang, Wei Liu, Michael Schloter, Guangming Zhang, Quansheng Chen, Jianhui Huang, Linghao Li, James J Elser, Xingguo Han   +8 more
doaj   +1 more source

Occurrence and abundance of ammonia‐oxidizing archaea and bacteria from the surface to below the water table, in deep soil, and their contributions to nitrification

MicrobiologyOpen, 2017
Using molecular biology methods (qualitative and quantitative PCR), we determined the occurrence and abundance of ammonia‐oxidizing archaea (AOA) and ammonia‐oxidizing bacteria (AOB) from a dry inland soil in Basel, Switzerland, and from the riparian ...
Lei Zheng, Xue Zhao, Guibing Zhu, Wei Yang, Chao Xia, Tao Xu   +5 more
doaj   +1 more source

Diversity and Abundance of Ammonia-Oxidizing Bacteria and Archaea in a Freshwater Recirculating Aquaculture System

Hayati Journal of Biosciences, 2017
The role of ammonia-oxidizing bacteria and archaea was evaluated using amoA gene in a freshwater recirculating system. Broken earthen pot pieces (BEP) were used as filter bed material.
Cherita Devi Khangembam, Jai Gopal Sharma, Rina Chakrabarti   +2 more
doaj   +1 more source