Results 21 to 30 of about 9,287 (195)

The Predominance of Ammonia-Oxidizing Archaea in an Oceanic Microbial Community Amended with Cyanobacterial Lysate

Microbiology Spectrum, 2023
When the oligotrophic microbial community was amended with Synechococcus-derived dissolved organic matter (SDOM) and incubated under the dark condition, archaea relative abundance was initially very low but made up more than 60% of the prokaryotic ...
Yufeng Jia, Madeline Lahm, Qi Chen, Leanne Powers, Michael Gonsior, Feng Chen   +5 more
doaj   +1 more source

Spotlight on the Thaumarchaeota [PDF]

The 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., Gribaldo, Simonetta, Forterre, Patrick   +2 more
openaire   +2 more sources

Integrated mobile genetic elements in Thaumarchaeota [PDF]

Environmental 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, Makarova, Kira, Wolf, Yuri, Medvedeva, Sofia, Prangishvili, David, Forterre, Patrick, Koonin, Eugene   +6 more
openaire   +2 more sources

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

Frontiers 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, Andy Leu, Kirsten Poff, Laura T. Carlson, Anitra E. Ingalls, Edward F. DeLong   +5 more
doaj   +1 more source

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

BMC 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, Thais F. Silva, Carla S. Vizzotto, Renata H. Santana, Fabyano A. C. Lopes, Bruno S. Silva, Fabiano L. Thompson, Ricardo H. Kruger   +7 more
doaj   +1 more source

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

Frontiers 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, Eva Lopes, Mafalda S. Baptista, Mafalda S. Baptista, Mafalda S. Baptista, Ainhoa Oller-Ruiz, Javier Gilabert, Maria Paola Tomasino, Catarina Magalhães, Catarina Magalhães, Catarina Magalhães   +10 more
doaj   +1 more source

Different carboxyl-rich alicyclic molecules proxy compounds select distinct bacterioplankton for oxidation of dissolved organic matter in the mesopelagic Sargasso Sea [PDF]

, 2020
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Liu, S., Parsons, R., Opalk, K., Baetge, N., Giovannoni, S., Bolanos, L. M., Kujawinski, E.
Baetge, Nicholas, Bolaños, Luis M., Carlson, Craig A., Giovannoni, Stephen J., Halewood, Elisa, Kujawinski, Elizabeth B., Liu, Shuting, Longnecker, Krista, Lu, YueHan, Opalk, Keri, Parsons, Rachel J.   +10 more
core   +1 more source

Gene duplication drives genome expansion in Thaumarchaeota [PDF]

, 2020
Abstract Ammonia-oxidising archaea of the phylum Thaumarchaeota are keystone species in global nitrogen cycling. However, only three of the six known families of the terrestrially ubiquitous order Nitrososphaerales possess representative genomes.
Sheridan, Paul O., Raguideau, Sebastien, Quince, Christopher, Williams, Tom A., Gubry-Rangin, Cécile   +4 more
openaire   +1 more source

Genomics of soil depth niche partitioning in the Thaumarchaeota family Gagatemarchaeaceae

Nature Communications, 2023
Abstract Knowledge of deeply-rooted non-ammonia oxidising Thaumarchaeota lineages from terrestrial environments is scarce, despite their abundance in acidic soils. Here, 15 new deeply-rooted thaumarchaeotal genomes were assembled from acidic topsoils (0-15 cm) and subsoils (30-60 cm), corresponding to two genera of terrestrially ...
Paul O. Sheridan, Yiyu Meng, Tom A. Williams, Cécile Gubry-Rangin   +3 more
openaire   +4 more sources

Short-term variability in the sedimentary BIT index of Lake Challa, East Africa over the past 2200 years : validating the precipitation proxy [PDF]

, 2015
. The branched vs. isoprenoid index of tetraethers (BIT index) in Lake Challa sediments has been applied as a monsoon precipitation proxy on the assumption that the primary source of branched tetraether lipids (brGDGTs) was soil washed in from the lake's
Buckles, LK, Cocquyt, Christine, Sinninghe Damsté, JS, Verschuren, Dirk, Weijers, JWH   +4 more
core   +1 more source