ArticleExtremophiles : life under extreme conditions2012
Microbial diversity and activity in hypersaline high Arctic spring channels.
Article in Extremophiles : life under extreme conditions, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Metagenomic insights into the taxonomic and metabolic diversity of the microbiome of Lake Karum in the Danakil Depression, Ethiopia.Environmental microbiome · 2026Article
- A hidden pattern? Common polyextremophilic microbial adaptations in Icy Moon analog environments.Frontiers in astronomy and space sciences · 2026Article
- Active lithoautotrophic and methane-oxidizing microbial community in an anoxic, sub-zero, and hypersaline High Arctic spring.The ISME journal · 2022Article
- Microbes from Brine Systems with Fluctuating Salinity Can Thrive under Simulated Martian Chemical Conditions.Life (Basel, Switzerland) · 2021Article
- The identification of sulfide oxidation as a potential metabolism driving primary production on late Noachian Mars.Scientific reports · 2020Article
- A Multiplex Immunosensor for Detecting Perchlorate-Reducing Bacteria for Environmental Monitoring and Planetary Exploration.Frontiers in microbiology · 2020Article
- Complete genome sequence ofStandards in genomic sciences · 2018Article
- Biological Characterization of Microenvironments in a Hypersaline Cold Spring Mars Analog.Frontiers in microbiology · 2017Article
- Viral Induced Microbial Mortality in Arctic Hypersaline Spring Sediments.Frontiers in microbiology · 2016Article
- Evidence of in situ microbial activity and sulphidogenesis in perennially sub-0 °C and hypersaline sediments of a high Arctic permafrost spring.Extremophiles : life under extreme conditions · 2015Article
- Life in extreme environments: microbial diversity in Great Salt Lake, Utah.Extremophiles : life under extreme conditions · 2014Article
- Spatial and temporal distribution of archaeal diversity in meromictic, hypersaline Ocnei Lake (Transylvanian Basin, Romania).Extremophiles : life under extreme conditions · 2014Article
- Quorum-sensing inhibitory compounds from extremophilic microorganisms isolated from a hypersaline cyanobacterial mat.Journal of industrial microbiology & biotechnology · 2013Article
- Defining the functional potential and active community members of a sediment microbial community in a high-arctic hypersaline subzero spring.Applied and environmental microbiology · 2013Article
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Authors and funding
6 authors.
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Abstract
Lost Hammer (LH) spring is a unique hypersaline, subzero, perennial high Arctic spring arising through thick permafrost. In the present study, the microbial and geochemical characteristics of the LH outflow channels, which remain unfrozen at ≥-18°C and are more aerobic/less reducing than the spring source were examined and compared to the previously characterized spring source environment. LH channel sediments contained greater microbial biomass (~100-fold) and greater microbial diversity reflected by the 16S rRNA clone libraries. Phylotypes related to methanogenesis, methanotrophy, sulfur reduction and oxidation were detected in the bacterial clone libraries while the archaeal community was dominated by phylotypes most closely related to THE ammonia-oxidizing Thaumarchaeota. The cumulative percent recovery of (14)C-acetate mineralization in channel sediment microcosms exceeded ~30% and ~10% at 5 and -5°C, respectively, but sharply decreased at -10°C (≤1%). Most bacterial isolates (Marinobacter, Planococcus, and Nesterenkonia spp.) were psychrotrophic, halotolerant, and capable of growth at -5°C. Overall, the hypersaline, subzero LH spring channel has higher microbial diversity and activity than the source, and supports a variety of niches reflecting the more dynamic and heterogeneous channel environment.
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