ArticleFrontiers in microbiology2016
Microbial Community Responses to Increased Water and Organic Matter in the Arid Soils of the McMurdo Dry Valleys, Antarctica.
Article in Frontiers in microbiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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Who cites it
29 citing papers in PubMed.
- Evidence for Trace Gas Metabolism and Widespread Antibiotic Synthesis in an Abiotically Driven, Antarctic Soil Ecosystem.Environmental microbiology reports · 2025Article
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- Bacterial community composition and function in different habitats in Antarctic Fildes region revealed by high-throughput sequencing.Frontiers in microbiology · 2025Article
- Soils of two Antarctic Dry Valleys exhibit unique microbial community structures in response to similar environmental disturbances.Environmental microbiome · 2024Article
- Trends in Antarctic soil fungal research in the context of environmental changes.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2024Review
- Different microbial communities in paddy soils under organic and nonorganic farming.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2024Article
- Geology defines microbiome structure and composition in nunataks and valleys of the Sør Rondane Mountains, East Antarctica.Frontiers in microbiology · 2024Article
- Bacterial Communities and Diversity of Western Ghats Soil: A Study of a Biodiversity Hotspot.Current microbiology · 2023Article
- The influence of precipitation timing and amount on soil microbial community in a temperate desert ecosystem.Frontiers in microbiology · 2023Article
- Microbial diversity in Antarctic Dry Valley soils across an altitudinal gradient.Frontiers in microbiology · 2023Article
- Bacterial composition in Swedish raw drinking water reveals three major interacting ubiquitous metacommunities.MicrobiologyOpen · 2022Article
- Limits to the three domains of life: lessons from community assembly along an Antarctic salinity gradient.Extremophiles : life under extreme conditions · 2022Article
- Growth Forms and Functional Guilds Distribution of Soil Fungi in Coastal Versus Inland Sites of Victoria Land, Antarctica.Biology · 2021Article
- Gullies and Moraines Are Islands of Biodiversity in an Arid, Mountain Landscape, Asgard Range, Antarctica.Frontiers in microbiology · 2021Article
- Genomic Insights Into theFrontiers in microbiology · 2021Article
- Geochemically Defined Space-for-Time Transects Successfully Capture Microbial Dynamics Along Lacustrine Chronosequences in a Polar Desert.Frontiers in microbiology · 2021Article
- Microbial Nitrogen Cycling in Antarctic Soils.Microorganisms · 2020Review
- Microbial Communities in Permafrost Soils of Larsemann Hills, Eastern Antarctica: Environmental Controls and Effect of Human Impact.Microorganisms · 2020Article
- Targeted domain assembly for fast functional profiling of metagenomic datasets with S3A.Bioinformatics (Oxford, England) · 2020Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The soils of the McMurdo Dry Valleys, Antarctica are an extreme polar desert, inhabited exclusively by microscopic taxa. This region is on the threshold of anticipated climate change, with glacial melt, permafrost thaw, and the melting of massive buried ice increasing liquid water availability and mobilizing soil nutrients. Experimental water and organic matter (OM) amendments were applied to investigate how these climate change effects may impact the soil communities. To identify active taxa and their functions, total community RNA transcripts were sequenced and annotated, and amended soils were compared with unamended control soils using differential abundance and expression analyses. Overall, taxonomic diversity declined with amendments of water and OM. The domain Bacteria increased with both amendments while Eukaryota declined from 38% of all taxa in control soils to 8 and 11% in water and OM amended soils, respectively. Among bacterial phyla, Actinobacteria (59%) dominated water-amended soils and Firmicutes (45%) dominated OM amended soils. Three bacterial phyla (Actinobacteria, Proteobacteria, and Firmicutes) were primarily responsible for the observed positive functional responses, while eukaryotic taxa experienced the majority (27 of 34) of significant transcript losses. These results indicated that as climate changes in this region, a replacement of endemic taxa adapted to dry, oligotrophic conditions by generalist, copiotrophic taxa is likely.
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