Results 101 to 110 of about 52,993 (223)

Flexible TAM requirement of TnpB enables efficient single-nucleotide editing with expanded targeting scope

open access: yesNature Communications
TnpBs encoded by the IS200/IS605 family transposon are among the most abundant prokaryotic proteins from which type V CRISPR-Cas nucleases may have evolved.
Xu Feng   +12 more
doaj   +1 more source

Archaeal Sources of Intact Membrane Lipid Biomarkers in the Oxygen Deficient Zone of the Eastern Tropical South Pacific

open access: yesFrontiers in Microbiology, 2019
Archaea are ubiquitous in the modern ocean where they are involved in the carbon and nitrogen biogeochemical cycles. However, the majority of Archaea remain uncultured.
Martina Sollai   +5 more
doaj   +1 more source

Planktonic and sediment-associated aerobic methanotrophs in two seep systems along the North American margin [PDF]

open access: yes, 2008
Methane vents are of significant geochemical and ecological importance. Notable progress has been made towards understanding anaerobic methane oxidation in marine sediments, however, the diversity and distribution of aerobic methanotrophs in the water ...
Orphan, Victoria J.   +2 more
core   +4 more sources

A tale of two microbialites: Stromatolites and microbially induced sedimentary structures

open access: yesSedimentology, EarlyView.
ABSTRACT Microbialites are biosedimentary structures built by microbial mats. Five microbialite groups are distinguished: stromatolites, thrombolites, dendrolites, leiloites and microbially induced sedimentary structures (MISS). This contribution discusses the two most abundant microbialite groups in marine settings, stromatolites and MISS.
Nora Noffke, Stanley M. Awramik
wiley   +1 more source

Rhythmicity of coastal marine picoeukaryotes, bacteria and archaea despite irregular environmental perturbations [PDF]

open access: yesThe ISME Journal, 2018
Abstract Seasonality in marine microorganisms has been classically observed in phytoplankton blooms, and more recently studied at the community level in prokaryotes, but rarely investigated at the scale of individual microbial taxa. Here we test if specific marine eukaryotic phytoplankton, bacterial and archaeal taxa display yearly ...
Lambert, Stefan   +6 more
openaire   +3 more sources

Prokaryotic respiration and production in the meso- and bathypelagic realm of the eastern and western North Atlantic basin [PDF]

open access: yes, 2006
We measured prokaryotic production and respiration in the major water masses of the North Atlantic down to a depth of,4,000 m by following the progression of the two branches of North Atlantic Deep Water (NADW) in the oceanic conveyor belt.
Aristegui, Javier   +7 more
core   +2 more sources

Pleomorphic viruses establish stable relationship with marine hyperthermophilic archaea

open access: yesThe ISME Journal
Abstract Non-lytic viruses with enveloped pleomorphic virions (family Pleolipoviridae) are ubiquitous in hypersaline environments across the globe and are associated with nearly all major lineages of halophilic archaea. However, their existence in other ecosystems remains largely unknown. Here, we show that evolutionarily-related viruses
Baquero, Diana   +2 more
openaire   +3 more sources

A temperate river estuary is a sink for methanotrophs adapted to extremes of pH, temperature and salinity [PDF]

open access: yes, 2016
River Tyne (UK) estuarine sediments harbour a genetically and functionally diverse community of methane-oxidizing bacteria (methanotrophs), the composition and activity of which were directly influenced by imposed environmental conditions (pH, salinity ...
Gray, Neil D.   +4 more
core   +2 more sources

The impacts of biological invasions

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1255-1310, June 2026.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock   +42 more
wiley   +1 more source

Large-scale biogeography of marine pelagic bacteria and archaea

open access: yes, 2023
The dark ocean contains about 70% of the ocean’s microbial cells and 60% of its heterotrophic activity, which is mainly fueled by the flux of organic particles produced in the surface ocean and exported to the bathypelagic ocean (1,000 – 4,000 m depth).
openaire   +5 more sources

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