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Microbial population dynamics along a terrestrial Antarctic moisture gradient
Citation
Lee K, Caruso T, Archer S, Gillman L, Lau M, Cary C, lee C, Pointing S (2019): Microbial population dynamics along a terrestrial Antarctic moisture gradient. v1.2. SCAR - Microbial Antarctic Resource System. Dataset/Metadata. https://ipt.biodiversity.aq/resource?r=microbes_terrestrial_antarctic_moisture_gradient&v=1.2 https://doi.org/10.15468/ypn3qm
Contact:
Lee, Kevin Availability:
![]() Description
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. more
We adopted a zonal sampling approach where soils were retrieved that matched visible delineations along linear transects extending across the hyporheic zone from the water’s edge at each sampling station: Zone (1) Saturated soil adjacent to water’s edge; Zone (2) Wet soil as indicated by dark coloration; Zone (3) Ephemerally wet soil, dry but with evidence for previous water indicated by surface evaporites; Zone (4) Dry soil with no indication of recent moisture. Soils from each zone in each transect were recovered using aseptic technique and saturated with Lifeguard solution (Qiagen, Netherlands) (n = 16) with parallel sampling for geochemical and moisture analysis (n = 16). All samples were stored in darkness frozen at -20oC until processed. Study Extent: Sampling was conducted around the hyporheic zone of Spaulding Pond, Taylor Valley in the McMurdo Dry Valleys of Antarctica, during the austral summer of 2015. Four transects were defined in north-east (S77◦ 39.489′ , E163◦ 07.501′ ), south-east (S77◦ 39.513′ , E◦ 163 07.626′ ), south (S77◦ 39.589′ , E◦ 163 07.006′ ), and north-west (S77◦ 39.470′, E◦163 06.336′) facing hyporheic moisture gradients. Method step description:
Scope Keywords: Terrestrial, Dna sequencing, Metadata, Antarctica, Victoria Land, McMurdo Dry Valleys, Bacteria Geographical coverage Antarctica, Victoria Land, McMurdo Dry Valleys [Marine Regions] Temporal coverage
2015 Taxonomic coverage
Bacteria [WoRMS]
Parameter
Molecular data Contributors
Related datasets
Dataset status: Completed
Data type: Metadata
Data origin: Research: field survey
Metadatarecord created: 2019-04-04
Information last updated: 2019-04-10
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