Results 71 to 80 of about 3,043 (201)

Deep ocean metagenomes provide insight into the metabolic architecture of bathypelagic microbial communities

Communications Biology, 2021
Silvia Acinas et al. report the Malaspina Gene Database, a gene catalogue from deep ocean microbes and the Malaspina Deep Metagenome-Assembled Genomes (MAGs) which is made publicly available. The analysis of the metabolic pathways within these MAGs sheds
Silvia G. Acinas, Pablo Sánchez, Guillem Salazar, Francisco M. Cornejo-Castillo, Marta Sebastián, Ramiro Logares, Marta Royo-Llonch, Lucas Paoli, Shinichi Sunagawa, Pascal Hingamp, Hiroyuki Ogata, Gipsi Lima-Mendez, Simon Roux, José M. González, Jesús M. Arrieta, Intikhab S. Alam, Allan Kamau, Chris Bowler, Jeroen Raes, Stéphane Pesant, Peer Bork, Susana Agustí, Takashi Gojobori, Dolors Vaqué, Matthew B. Sullivan, Carlos Pedrós-Alió, Ramon Massana, Carlos M. Duarte, Josep M. Gasol   +28 more
doaj   +1 more source

Archaeal Tetraether Lipids as Tracers for Past Marine Environmental Change

Paleoceanography and Paleoclimatology, Volume 41, Issue 7, July 2026.
Abstract Archaea are single‐celled microorganisms that are abundant in marine environments and play a key role in the carbon and nitrogen cycles. Archaea can biosynthesize a wide variety of isoprenoid membrane lipids, including isoprenoid glycerol dibiphytanyl glycerol tetraethers (isoGDGTs).
Felix J. Elling, Gordon N. Inglis, Nina Davtian, Sarah J. Hurley, B. David A. Naafs, Lauren K. O'Connor, Richard D. Pancost, Francien Peterse, Ronnakrit Rattanasriampaipong, Addison Rice, Florence Schubotz, Jaap S. Sinninghe Damsté, Lars Wörmer, Alexandra Auderset, Kevin W. Becker, Melissa A. Berke, Peter K. Bijl, Cindy De Jonge, Liang Dong, Bella J. Duncan, Tom Dunkley Jones, Pierrick Fenies, Susanne Fietz, Sze Ling Ho, Arnaud Huguet, Carme Huguet, Jérôme Kaiser, Xiao‐Lei Liu, Gesine Mollenhauer, Sebastian Naeher, Ann Pearson, Kasia K. Śliwińska, Appy Sluijs, Claudia Sosa‐Montes de Oca, Qian Tian, Jessica E. Tierney, Devika Varma, Wenjie Xiao, Yi Ge Zhang, Xiaoxiao Zhao   +39 more
wiley   +1 more source

Niche Differentiation of Aerobic and Anaerobic Ammonia Oxidizers in a High Latitude Deep Oxygen Minimum Zone

Frontiers in Microbiology, 2019
To elucidate the potential for nitrification and denitrification processes in a high latitude deep oxygen minimum zone (OMZ) we determined the abundance and community composition of the main microbial players in the aerobic and anaerobic (anammox ...
Simone Muck, Simone Muck, Daniele De Corte, Elisabeth L. Clifford, Barbara Bayer, Gerhard J. Herndl, Gerhard J. Herndl, Eva Sintes, Eva Sintes   +8 more
doaj   +1 more source

Diving deep into the origins of refractory dissolved amino acids in the ocean

Limnology and Oceanography, Volume 71, Issue 6, June 2026.
Abstract Amino acids are key constituents of marine peptides and proteins and are generally considered biologically labile or semi‐labile, yet their widespread occurrence throughout the ocean suggests bioresistance over extended timescales. To investigate this paradox, we conducted two parallel shipboard incubation experiments to track microbial ...
Yuan Shen, Ronald Benner
wiley   +1 more source

Acoustic evidence for topographic blocking on a steep submarine canyon wall

Limnology and Oceanography, Volume 71, Issue 6, June 2026.
Abstract Diel vertical migration (DVM) is the largest mass‐movement of animals on Earth, with profound ecological and biogeochemical consequences. DVM has mostly been studied in the open ocean; however, at steep slopes, pelagic animals including vertical migrators must contend with the seafloor, emphasizing the importance of understanding DVM in these ...
Astrid B. Leitner, Chad M. Waluk, Kim R. Reisenbichler, Rob E. Sherlock, Bruce H. Robison, Kelly J. Benoit‐Bird   +5 more
wiley   +1 more source

Geographic distribution of archaeal ammonia oxidizing ecotypes in the Atlantic Ocean

Frontiers in Microbiology, 2016
In marine ecosystems, Thaumarchaeota are most likely the major ammonia oxidizers. While ammonia concentrations vary by about two orders of magnitude in the oceanic water column, archaeal ammonia oxidizers (AOA) vary by only one order of magnitude from ...
Eva eSintes, Daniele eDe Corte, Elisabeth eHaberleitner, Gerhard Josef Herndl, Gerhard Josef Herndl   +4 more
doaj   +1 more source

Viral Abundance, Decay, and Diversity in the Meso- and Bathypelagic Waters of the North Atlantic [PDF]

Applied and Environmental Microbiology, 2007
ABSTRACT To elucidate the potential importance of deep-water viruses in controlling the meso- and bathypelagic picoplankton community, the abundance, decay rate, and diversity of the virioplankton community were determined in the meso- and bathypelagic water masses of the eastern part of the subtropical North Atlantic.
Parada, V., Sintes, E., van Aken, H.M., Weinbauer, M.G, Herndl, G.J.   +4 more
openaire   +3 more sources

Changes in DOM Quality Determine Prokaryotic Activities and Extracellular Release in the NW Mediterranean Sea: An Experimental Approach

Environmental Microbiology Reports, Volume 18, Issue 3, June 2026.
Changes in DOM composition influence prokaryotic species growth in the Mediterranean Sea, shaping their metabolic responses and organic matter processing. In our study, higher DOP consumption and alkaline phosphatase activity led to the accumulation of recalcitrant DOM, highlighting how microbial community shifts drive distinct pathways in carbon ...
Eva Ortega‐Retuerta, Nawal Bouchachi, Rebeca Campos, Olivier Crispi, Barbara Marie, Charles‐Hubert Paulin, Karine Escoubeyrou, Jonathan Colombet, Telesphore Sime‐Ngando, Anabel Von Jackowski   +9 more
wiley   +1 more source

Sediments as Potential Sources of Non‐Cyanobacterial Diazotrophs in Arctic Sea Ice and Seawater

Environmental Microbiology Reports, Volume 18, Issue 3, June 2026.
Diazotrophic communities across Arctic environments: Integrated analyses of diazotrophs in sea ice, seawater, and sediments show that Arctic continental shelf sediments function as a central reservoir, supplying diazotrophs to both sea ice and seawater through resuspension processes.
Haitian Bo, Ziyuan Zhang, Amane Fujiwara, Yuri Fukai, Masato Ito, Satoshi Kimura, Marc Oggier, Hisatomo Waga, Laura Whitmore, Koji Hamasaki, Takuhei Shiozaki   +10 more
wiley   +1 more source

Genomic Insights Into the Evolutionary History of Berardius Beaked Whales: Speciation Driven by Resource Specialization, Gigantism and Thermal Barriers?

Molecular Ecology, Volume 35, Issue 12, June 2026.
ABSTRACT Understanding the diversity of our oceans is fundamental now more than ever as climate change and human activities put increasing pressure on marine species and ecosystems. Beaked whales (family Ziphiidae) are among the most poorly understood marine mammals, in part due to their affinity to offshore underwater canyons and prolonged diving ...
Morgan L. McCarthy, Michael V. Westbury, Mark S. Springer, John Gatesy, Morten Tange Olsen, Phillip A. Morin   +5 more
wiley   +1 more source