Results 11 to 20 of about 5,341 (161)

Novel insights into the Thaumarchaeota in the deepest oceans: their metabolism and potential adaptation mechanisms [PDF]

open access: yesMicrobiome, 2020
Background Marine Group I (MGI) Thaumarchaeota, which play key roles in the global biogeochemical cycling of nitrogen and carbon (ammonia oxidizers), thrive in the aphotic deep sea with massive populations.
Haohui Zhong   +8 more
doaj   +5 more sources

Gene duplication drives genome expansion in a major lineage of Thaumarchaeota [PDF]

open access: yesNature Communications, 2020
Ammonia-oxidising archaea of the phylum Thaumarchaeota are important organisms in the nitrogen cycle. Using 12 new genomes, this study finds evidence that Nitrososphaerales evolution was marked by lateral gene transfer followed by gene duplication.
Paul O. Sheridan   +7 more
doaj   +7 more sources

Comparative Genomics Reveals Ecological and Evolutionary Insights into Sponge-Associated Thaumarchaeota [PDF]

open access: yesmSystems, 2019
Thaumarchaeota are frequently reported to associate with marine sponges (phylum Porifera); however, little is known about the features that distinguish them from their free-living thaumarchaeal counterparts.
Shan Zhang   +5 more
doaj   +9 more sources

Accu16S/AccuITS: Accurate and broadly applicable amplicon sequencing for absolute microbiome quantification. [PDF]

open access: yesImeta
Traditional 16S rRNA gene and Internal Transcribed Spacer region amplicon sequencing provides only relative abundance, often leading to biased ecological interpretations. To overcome this limitation, we developed Accu16S/AccuITS, an absolute quantification method for bacterial and fungal amplicons based on synthetic internal spike‐in DNA with known ...
Bai D   +10 more
europepmc   +2 more sources

Spotlight on the Thaumarchaeota [PDF]

open access: yesThe ISME Journal, 2011
Over the last two decades, many new groups of deeply branching uncultivated archaea have been unveiled by molecular screening of 16S rRNA genes. Among these, Thaumarchaeota (Brochier-Armanet et al., 2008) are now known to represent a highly diversified and ancient phylum present in a wide variety of ecosystems, including marine and fresh waters, soils ...
Brochier-Armanet, C.   +2 more
openaire   +2 more sources

Integrated mobile genetic elements in Thaumarchaeota [PDF]

open access: yesEnvironmental Microbiology, 2019
Summary To explore the diversity of mobile genetic elements (MGE) associated with archaea of the phylum Thaumarchaeota, we exploited the property of most MGE to integrate into the genomes of their hosts. Integrated MGE (iMGE) were identified in 20 thaumarchaeal genomes amounting to 2 Mbp of mobile thaumarchaeal ...
Krupovic, M   +6 more
openaire   +2 more sources

Planktonic Archaeal Ether Lipid Origins in Surface Waters of the North Pacific Subtropical Gyre

open access: yesFrontiers in Microbiology, 2021
Thaumarchaeota and Thermoplasmatota are the most abundant planktonic archaea in the sea. Thaumarchaeota contain tetraether lipids as their major membrane lipids, but the lipid composition of uncultured planktonic Thermoplasmatota representatives remains ...
Fuyan Li   +5 more
doaj   +1 more source

Phylogenetic congruence and ecological coherence in terrestrial Thaumarchaeota [PDF]

open access: yesThe ISME Journal, 2015
Abstract Thaumarchaeota form a ubiquitously distributed archaeal phylum, comprising both the ammonia-oxidising archaea (AOA) and other archaeal groups in which ammonia oxidation has not been demonstrated (including Group 1.1c and Group 1.3).
Oton, Eduard Vico   +4 more
openaire   +3 more sources

Genome-resolved metagenomics analysis provides insights into the ecological role of Thaumarchaeota in the Amazon River and its plume

open access: yesBMC Microbiology, 2020
Background Thaumarchaeota are abundant in the Amazon River, where they are the only ammonia-oxidizing archaea. Despite the importance of Thaumarchaeota, little is known about their physiology, mainly because few isolates are available for study ...
Otávio H. B. Pinto   +7 more
doaj   +1 more source

Depth Profile of Nitrifying Archaeal and Bacterial Communities in the Remote Oligotrophic Waters of the North Pacific

open access: yesFrontiers in Microbiology, 2021
Nitrification is a vital ecosystem function in the open ocean that regenerates inorganic nitrogen and promotes primary production. Recent studies have shown that the ecology and physiology of nitrifying organisms is more complex than previously ...
Miguel Semedo   +10 more
doaj   +1 more source

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