Airborne Bacteria from Miers Valley, Antarctica abstract
Amplicon dataset of bacteria captured 1 m above the ground in two locations in Miers Valley (Antarctica).
Antarctic Peninsula Bacterioplankton 16S rRNA gene surveys and metagenomes from Winter 2002 and Summer 2006. abstract
Antarctic surface oceans are well-studied during summer when irradiance levels are high, sea ice is melting and primary productivity is at a maximum. Coincident with this timing, the bacterioplankton respond with significant increases in secondary productivity. Little is known about bacterioplankton in winter when darkness and sea-ice cover inhibit photoautotrophic primary production. We report here an environmental genomic and small subunit ribosomal RNA (SSU rRNA) analysis of winter and summer Antarctic Peninsula coastal seawater bacterioplankton. Intense inter-seasonal differences were reflected through shifts in community composition and functional capacities encoded in winter and summer environmental genomes with significantly higher phylogenetic and functional diversity in winter. In general, inferred metabolisms of summer bacterioplankton were characterized by chemoheterotrophy, photoheterotrophy and aerobic anoxygenic photosynthesis while the winter community included the capacity for bacterial and archaeal chemolithoautotrophy. Chemolithoautotrophic pathways were dominant in winter and were similar to those recently reported in global‘dark ocean’ mesopelagic waters. If chemolithoautotrophy is widespread in the Southern Ocean in winter, this process may be a previously unaccounted carbon sink and may help account for the unexplained anomalies in surface inorganic nitrogen content.
Whole-genome shotgun sequencing dataset targeting microbes in three soil samples from pristine polar desert at Robinson Ridge (eastern Antarctica)
Antarctic snow algae communities abstract
Amplicon sequencing dataset of Eukaryotes (18S-ITS) and Bacteria (16S) in green and red snow algae blooms on Antarctic snow.
Arctic Ocean microbial metagenomes sampled aboard CGC Healy during the 2015 GEOTRACES Arctic research cruise abstract
Whole metagenome shotgun sequencing dataset (Illumina MiSeq) of microbial plankton in the Arctic oceans, sampled aboard CGC Healy during the 2015 GEOTRACES Arctic research cruise.
Arctic multi-year sea ice Bacteria abstract
Amplicon sequencing dataset (454 pyrosequencing) of Bacteria (16S marker gene) in two multi-year sea-ice cores from the Arctic.
Associated microbiome (Bacteria and Fungi) in Antarctic sea stars (healthy versus exhibiting epidermal disease) abstract
Amplicon sequencing dataset (Illumina MiSeq) of bacteria (16S ssu rRNA gene) and Fungi (ITS) associated with healthy and diseased Antarctic sea stars (Odontaster validus)
BCCM/ULC Cyanobacteria culture collection at the University of Liège (ISO9001 certified) abstract
Bacteria (16S ssu rRNA) in an Antarctic snow sample abstract
Amplicon sequencing sample of Bacteria (16S ssu rRNA gene, v1-v3 region) from a snow sample taken from the "clean Area”, 2 km South from the Antarctic Research Base “Concordia” (75°06′S–123°20′E).
Bacteria (16S) and Eukaryotes (18S) from the Sor Rondane Mountains (East Antarctica) abstract
A bacterial and microeukaryotic biodiversity study, using pyrosequencing analysis on a 454 GS FLX+ platform
of partial SSU rRNA genes in terrestrial and aquatic habitats of the Sør Rondane Mountains, including soils, on mosses, endolithic communities, cryoconite holes and supraglacial and subglacial meltwater lenses.
Bacteria (16S) in Antarctic terrestrial soils of the Sor Rondane Mountains abstract
Illumina sequencing data of bacterial communities in 52 soil samples from the western Sør Rondane Mountains (Dronning Maud Land, East Antarctica).The samples were taken along broad environmental gradients, including different types of bedrock, in an area covering nearly 1000 km2.
Bacteria (16S) in growth laminae of a large conical mats from Lake Untersee, East Antarctic abstract
Amplicon sequencing dataset (454 pyrosequencing) of Bacterial communities (based on the 16S ssu rRNA gene; using Bacteria and Cyanobacteria-specific primers), of three different strata in a laminated microbial mat sample from Lake Untersee (east Antarctica)
Bacteria and Archaea in different soil types on King George Island (South Shetland Islands, Antarctica) abstract
Amplicon sequencing dataset (454 pyrosequencing) of Bacteria and Archaea (16S ssu rRNA gene) in three sets of environmentally distinct soil samples on King George Island (Antarctica)
Bacteria in Antarctic glacial foreland soils abstract
Amplicon sequencing dataset (Illumina MiSeq) of Bacteria (16S ssu rRNA) in an Antarctic glacial foreland soil gradient
Bacteria on mummified seals in the Antarctic Dry Valleys abstract
Amplicon dataset of Bacteria (16S ssu rRNA) living around mummified seal carcasses in the Antarctic Dry Valleys
Bacterial Diversity Assessment in Antarctic Terrestrial and Aquatic Microbial Mats abstract
Bacterial community during Phaeocystis antarctica blooms (Amundsen Sea polynya) abstract
Amplicon sequencing dataset of marine microbial Bacteria (16S su rRNA gene, v6) in the Amundsen Sea polynya, during Phaeocystis antarctica blooms
Bacterial diversity in closed cryoconite holes in Southern Victoria Land (Antarctica) abstract
Amplicon sequencing dataset of that profiled Bacteria (16S ssu rRNA gene) in different closed cryoconite holes on the Diamond Glacier and Koettliz Glacier (Southern Victoria Land, Antarctica).
Bacterial in the Amundsen Sea Polynya (Southern Ocean): community composition in environmental samples and mesocosm experiment abstract
Amplicon sequencing dataset (454 pyrosequencing) of microbial diversity (Bacteria, based on the 16S ssu rRNA gene) in the Amundsen Sea Polynya. This dataset was used in a study where the Amundsen Sea Polynya (Southern Ocean) was used as a model system to investigate important environmental factors that shape the coastal Southern Ocean microbiota. Population dynamics of abundant taxa was studied in both environmental samples and microcosm experiments.
Benthic microbial communities (Bacteria, 16S) of coastal terrestrial and ice shelf Antarctic meltwater ponds abstract
The investigation of bacterioplankton, mat and sediment microbial communities from the Bratina Island meltwater ponds in Late November 2009, January 2012 and January 2013 and from meltwater ponds at the mouth of the Miers Valley in January 2013 using 16S rRNA pyrosequencing. Ponds range in size from 1 to several hundred square meters in surface area, 1-4m in depth and represent a broad variety of unique geochemistries. They are formed in the landscape depressions and are maintained from local ice and snow melt.
Community diversity in microbial eukaryotes from lakes in the the Vestfold Hills, Antarctica abstract
Cyanobacteria in microbial mats from Antarctic lakes abstract
DNA metabarcoding of the prey and microbiome of museum specimen Antarctic trematomid fishes abstract
In this dataset, stomachs and hindguts were sampled from 225 Trematomus specimens from the Natural History Museum London. Fish specimen were collected between 20 and 100 years ago and fixed in either formaldehyde or ethanol. A 313 bp fragment of the cytochrome c oxidase subunit I (COI) was amplified and sequenced for prey item identification in the stomach and a 450 bp region of the 16S rRNA gene to investigate microbiome composition in the gut system.
Fungal communities (ITS) in Antarctic brines. abstract
Amplicon sequencing dataset (Illumina MiSeq) of Fungal microbes (ITS marker gene) in two distinct layers (separated by 12cm of ice) of liquid high salinity brines of one lake in the Tarmac Flat area (In the North of McMurdo Dry Valley, Antarctica).
Fungi (LSU) in soils from the South Shetland island, Antarctic Peninsula island, and Union Glacier abstract
Amplicon sequencing dataset of microbial Fungi (LSU D1-D2) of terrestrial habitats in Antarctica, including eight islands of the South Shetland Archipelago, two islands on the Antarctic Peninsula and Union Glacier.
Geomicrobiology of Antarctic Subglacial Environments - Subglacial Lake Whillans abstract
Liquid water has been known to occur beneath the Antarctic ice sheet for more than 40 years,but only recently have these subglacial aqueous environments been recognized as microbial ecosystems that may influence biogeochemical transformations on a global scale. Here we present the first geomicrobiological description of water and surficial sediments obtained from direct sampling of a subglacial Antarctic lake. Subglacial Lake Whillans (SLW)lies beneath approximately 800m of ice on the lower portion of the Whillans Ice Stream (WIS) in West Antarctica and is part of an extensive and evolving subglacial drainage network. The water column of SLW contained metabolically active microorganisms and was derived primarily from glacial ice melt with solute sources from lithogenic weathering and a minor seawater component. Heterotrophic and autotrophic production data together with small subunit ribosomal RNA gene sequencing and biogeochemical data indicate that SLW is a chemosynthetically driven ecosystem inhabited by a diverse assemblage of bacteria and archaea. Our results confirm that aquatic environments beneath the Antarctic ice sheet support viable microbial ecosystems, corroborating previous reports suggesting that they contain globally relevant pools of carbon and microbes that can mobilize elements from the lithosphere and influence Southern Ocean geochemical and biological systems.
Global biogeography of desert cyanobacteria abstract
Amplicon sequencing dataset (454 pyrosequencing) of Bacteria (16S ssu rRNA) and Cyanobacteria (nifH) in cold desert quartz rocks
Hypolithic and soil bacteria in Miers_Valley, Antarctica abstract
Amplicon sequencing dataset (454 pyrosequencing) of Bacteria (16S ssu rRNA gene, v3 region) in hypolithic and soil environments of Miers Valley, Antarctica
Marine bacterial, archaeal and eukaryotic microbial communities on the continental shelf of the western Antarctic Peninsula abstract
Marine bacterioplankton community structure in the vicinity of Antarctic icebergs abstract
We studied marine bacterioplankton in the Scotia Sea in June 2008 and in the northwest Weddell Sea in March to mid April 2009 in waters proximal to three free-drifting icebergs (SS-1, A-43k, and C-18a), in a region with a high density of smaller icebergs (iceberg alley), and at stations that were upstream of the iceberg trajectories designated as far-field reference sites that were between 16-75 km away. Hydrographic parameters were used to define water masses in which comparisons between bacterioplankton-associated characteristics within and between water masses could be made. Influences of the icebergs on early winter Scotia Sea bacterioplankton were minimal, if not deleterious, as we found lower levels of heterotrophic production near A-43k in comparison to stations > 16 km away. Small but significant differences in bacterioplankton community structure were observed between two icebergs studied in early winter Scotia Sea. These icebergs differed greatly in size and the findings suggest that the larger iceberg had a greater effect. In the NW Weddell Sea in March–mid April there were some significant differences in community structure in the winter water and underlying upper circumpolar deep water masses between stations occupied close to C-18a and at stations 18 km away (i.e. Polaribacter and Pelagibacter-related 16S rRNA gene fragments were at low levels at the 18 km stations), though higher resolution, high throughput profiling tools will be needed to pinpoint specific organisms and ecological types. Likewise, a better understanding of local to regional scale structure of bacterioplankton communities is necessary. Overall, the results show that bacterioplankton, dominated by Rhodobacteracae Pelagibacter, and uncultivated Gammaproteobacteria groups were minimally influenced by icebergs in the regions and seasons studied here – at least directly – though further work addressing different scales, sizes of icebergs, and seasons is needed to better understand bacterioplankton-associated ecological processes and carbon cycling in regions of high iceberg production.
Marine_ microbial eukaryotes (18S) from the Ross Sea (Antarctica) abstract
Amplicon sequencing dataset of microbial eukaryotes (18S ssh rRNA gene v9) in water and sea ice collected in the Ross Sea, Antarctica during the summer of 2011. Prior to sequencing, mixotroph abundances were determined using tracer ingestion.
Maritime and Sub-Antarctic microbial soil fungi communities abstract
Amplicon sequencing dataset (454 pyrosequencing) of microbial soil fungi (based on ITS) from islands in maritime Antarctica and Sub-Antarctica.
Metagenome assembly of an Amundsen Sea (Antarctica, Southern Ocean) water sample abstract
Seven assembled metagenoms from a metagenomic sequencing (Illumina HiSeq; paired-end) sample taken during a phytoplankton bloom in the Amundsen Sea (Antarctica, Southern Ocean)
Microbes (16S and 18S rRNA genes) from benthic Antarctic sediments abstract
amplicon sequencing dataset (Illumina MiSeq) of microbial communities (16S and 18S rRNA genes) in 24 samples from benthic Antarctic sediments
Microbes (Eukaryotes and Archaea) in sea water from Fildes Peninsula (King George Island, Antarctica) abstract
Amplicon sequencing dataset (Illumina MiSeq) of microbial Eukaryotes (18S ssu rRNA gene), and Archaea in sea water samples taken during the 29th Chinese Antarctic scientific expedition in 2013 at Greatwall cove and Ardley cove, Fildes Peninsula (King George Island, Antarctica).
Microbial (16S) diversity in sediments of the former subglacial Hodgson lake (Antarctica) abstract
Amplicon sequencing dataset (454 pyrosequencing) of microorganisms (16S ssu rRNA gene) in sediments of the former subglacial Hodgson lake (Antarctica). Exploratory study (1 sample).
Microbial (Bacteria, 16S) Diversity in Antarctic marine sediments (Admiralty Bay and Bransfield Strait) abstract
amplicon dataset of Bacteria (16S ssh rRNA marker gene) found Antarctic marine sediments (Admiralty Bay and Bransfield Strait), sampled in December 2008.
Microbial Fungi in soils on different Sub-Antarctic islands abstract
Aplicon sequencing dataset (454 pyrosequencing) of microbial Fungi (ITS) in soils from Bird Island, Signy Island and Leonie Island (Sub-Antarctica)
Microbial communities (Bacteria and Archaea) in Lake Fryxell (Antarctica) along an oxygen gradient abstract
Amplicon sequencing dataset (MiSeq) of Archaea and Bacteria (16S ssu rRNA) in microbial mats at the floor of lake Fryxell (Antarctica).
Microbial communities (Eukaryotes and Bacteria) of transiently wetted vs. arid Antarctic Dry Valley soils abstract
Amplicon sequencing dataset of Bacteria (16S ssu rRNA gene) and Eukaryotes (18S ssu rRNA gene) from wet and dry soil samples near Miers stream, Nostoc pond, Miers lake and Buddha lake, in the McMurdo Dry Valleys, Antarctica.
Microbial diversity (Bacteria and Archaea 16S rRNA gene) in geothermal sites of Deception Island volcano, Antarctica abstract
Amplicon sequencing dataset (Illumina MiSeq) of Bacterial and Archaea microbial diversity (based on the 16S ssu rRNA gene) in surface sediment samples, taken along a temperature gradient (three points, each with three replicates) on two different geothermal active sites (+-10km apart) on Deception Island, Antarctica.
Microbial fungal communities (18S) of Antarctic Dry Valley lakes abstract
Amplicon sequencing dataset (Illumina MiSeq) of microbial fungi (18S ssu rRNA gene, v7-v8) in Antarctic Dry Vallei lakes.
Microbial metabarcoding surveys (Bacteria, Archaea and Eukaryota) of the arctic marine environment abstract
Large amplicon sequencing dataset (Illumina MiSeq) targeting Bacteria/Archaea (16S ssu rRNA gene) and Eukaryota (18S ssu rRNA gene) from samples taken in the Arctic marine environment, following the Earth Microbiome Project protocol.
Microbial population dynamics along a terrestrial Antarctic moisture gradient abstract
Amplicon sequencing dataset (Illumina MiSeq) of Bacteria (16S ssu rRNA gene) in soil samples from the McMurdo Dry Valleys (Antarctica) taken along a moisture gradient.
Microbial soil Fungi (ITS2) diversity from Maritime Antarctica abstract
Amplicon sequencing dataset (454) of microbial fungi (ITS2 marker gene) in soils from the Antarctic Peninsula and Maritime Antarctic Islands.
Microbiome (Archaea, Bacteria and Eukaryota) of lake Fryxell and lake Bonney (McMurdo Dry Valleys, Antarctica) abstract
Amplicon sequencing dataset (454 pyrosequencing) of Archaea (16S), Bacteria (16S) and Eukaryote (18S) in the water column of lake Fryxell and Lake Bonney, in the McMurdo Dry valleys (Antarctica).
Microbiome (Archaea, Bacteria and Fungi) in soils from King George Island (Antarctica) abstract
Amplicon sequencing dataset (Illumina MiSeq) of Bacteria (16S); Archaea (16S) and Fungi (ITS) in soils from the Fildes region on King George Island (Antarctica).
Microbiome (Bacteria, Archaea and fungi) from University Valley Permafrost cores (Antarctica) abstract
Amplicon sequencing dataset (Bacteria and Archaea based on 16S ssu rRNA gene, Fungi and other eukaryotes, based on the ITS marker) of microorganisms in permafrost samples (two cores with three different depths) taken in University Valley, Antarctica.
Microorganisms (Bacteria 16S; Eukaryota 18S) from soil crusts in polar (Arctic and Antarctic) ecosystems abstract
Amplicon sequencing dataset (Illumina MiSeq) of Bacteria and Eukaryotes in Soil crusts on Svalbard and Antarctica
Microorganisms (Bacteria and Archaea) in the marine cavity beneath the McMurdo Ice Shelf, Antarctica abstract
Amplicon sequencing dataset (Illumina MiSeq) of Bacteria and Archaea (16S) in the marine cavity beneath the McMurdo Ice Shelf, Antarctica
Microorganisms (Bacteria, Archaea and phototroph eukaryotes) from Fildes Bay, King George Island, Antarctica abstract
Amplicon sequencing dataset (Illumina MiSeq and 454 pyrosequencing) of Bacteria and Archaea (16S ssu rRNA gene) and phototroph eukaryotes (16S chloroplast) from sea water in Fildes Bay, King George Island, Antarctica
Microorganisms (eukaryote and bacteria) in Antarctic cryoconite holes. abstract
Amplicon sequencing dataset (Illumina MiSeq) of Eukaryotes (18S ssu rRNA) and Bacterial (16S ssu rRNA) microbes in Antarctic cryoconite holes.
Microorganisms in frost flowers on young Arctic sea ice, comparison between different ice types abstract
Amplicon sequencing dataset (454 pyrosequencing) of Bacteria in different types of young sea ice and sea ice brines in the Arctic ocean (North-East coast of Greenland)
Near‐shore microbial communities (Eukaryotes, Bacteria and Archaea) of the sub‐Antarctic Prince Edward Islands abstract
Amplicon sequencing dataset of microbial eukaryotes (18S ssh rRNA); bacteria (16S) and Archaea (16S) from coastal seawater near the shore of the Prince Edward Islands (Indian Ocean, Sub-Antarctica); sampled from a single location (37.58 degrees South 46.36 degrees East) in 2012, 2013, 2014 and 2015.
RNA-Virome (RNA shotgun sequencing) from lake Limnopolar on Livingston Island (Antarctica) abstract
RNA shotgun sequencing (454 pyrosequencing) metagenome dataset of viruses in lake Limnopolar (Livingston Island, Antarctica), over a three-year period.
Sequenced genes (ureC gene) and a metagenome from Archaea in Arctic and Antarctic marine environments abstract
Microbial dataset containing sequenced genes (ureC gene) from Thaumarchaeota from the Beaufort Sea (Arctic) and the Amundsen Sea (Antarctica), as well as a metagenome (454 pyrosequencing) the Beaufort Sea.
Soil microbiome (Bacteria) on Keller Peninsula (Antarctica) abstract
Amplicon sequencing dataset (454 pyrosequencing and Ion Torrent) of Bacteria (16S ssu rRNA gene) in ice-free soils of Keller Peninsula (Antarctica)
Southern Ocean microbial dataset abstract
This resource refers to an amplicon sequencing dataset (454 pyrosequencing) of microorganisms in Southern Ocean samples.
The skin microbiome (based on 16S) of Antarctic Humpback whales (Megaptera novaeangliae) abstract
Amplicon sequencing dataset (Illumina MiSeq) of the microbiome (16S) on skin samples of Humpback whales (Megaptera novaeangliae)
benthic communities bacterial in Antarctica and the arctic abstract
Amplicon sequencing dataset of benthic Bacteria (16S ssh rRNA gene) occurring in pools, streams and wet soils of (sub-)Arctic and (sub-)Antarctic regions
microbial Eukaryotes in lakes along an Argentinian-Antarctic geographical gradient abstract
Amplicon sequencing dataset (Illumina HiSeq) of Eukaryotes (18S) in lakes along a latitudinal gradient from Southern Argentina to maritime Antarctica