ArticleApplied and environmental microbiology2008
Heterotrophic and autotrophic microbial populations in cold perennial springs of the high arctic.
Article in Applied and environmental microbiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed, 72 citations in OpenAlex.
- Chemoautotrophy in subzero environments and the potential for cold-adapted Rubisco.Applied and environmental microbiology · 2025Article
- Chemolithoautotrophic bacteria flourish at dark water-ice interfaces of an emerged Arctic cold seep.The ISME journal · 2024Article
- Thiothrix and Sulfurovum genera dominate bacterial mats in Slovak cold sulfur springs.Environmental microbiome · 2023Article
- Sulfur-cycling chemolithoautotrophic microbial community dominates a cold, anoxic, hypersaline Arctic spring.Microbiome · 2023Article
- Active lithoautotrophic and methane-oxidizing microbial community in an anoxic, sub-zero, and hypersaline High Arctic spring.The ISME journal · 2022Article
- Microbial Metabolic Redundancy Is a Key Mechanism in a Sulfur-Rich Glacial Ecosystem.mSystems · 2020Article
- The identification of sulfide oxidation as a potential metabolism driving primary production on late Noachian Mars.Scientific reports · 2020Article
- Culture-Dependent Bioprospecting of Bacterial Isolates From the Canadian High Arctic Displaying Antibacterial Activity.Frontiers in microbiology · 2019Article
- Evolutionary Implications of Anoxygenic Phototrophy in the Bacterial PhylumFrontiers in microbiology · 2019Article
- 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
- Reconstructing the Origin of Oxygenic Photosynthesis: Do Assembly and Photoactivation Recapitulate Evolution?Frontiers in plant science · 2016Article
- Analysis of cbbL, nifH, and pufLM in Soils from the Sør Rondane Mountains, Antarctica, Reveals a Large Diversity of Autotrophic and Phototrophic Bacteria.Microbial ecology · 2016Article
- Article
- 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
- Recent advances and future perspectives in microbial phototrophy in antarctic sea ice.Biology · 2012Article
- Microbial diversity and activity in hypersaline high Arctic spring channels.Extremophiles : life under extreme conditions · 2012Article
- Benthic bacterial diversity in submerged sinkhole ecosystems.Applied and environmental microbiology · 2010Article
- Microbial communities in subpermafrost saline fracture water at the Lupin Au mine, Nunavut, Canada.Microbial ecology · 2009Article
- Photoheterotrophic microbes in the Arctic Ocean in summer and winter.Applied and environmental microbiology · 2009Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The saline springs of Gypsum Hill in the Canadian high Arctic are a rare example of cold springs originating from deep groundwater and rising to the surface through thick permafrost. The heterotrophic bacteria and autotrophic sulfur-oxidizing bacteria (up to 40% of the total microbial community) isolated from the spring waters and sediments were classified into four phyla (Actinobacteria, Bacteroidetes, Firmicutes, and Proteobacteria) based on 16S rRNA gene analysis; heterotrophic isolates were primarily psychrotolerant, salt-tolerant, facultative anaerobes. Some of the isolates contained genes for thiosulfate oxidation (soxB) and anoxygenic photosynthesis (pufM), possibly enabling the strains to better compete in these sulfur-rich environments subject to long periods of illumination in the Arctic summer. Although leucine uptake by the spring water microbial community was low, CO(2) uptake was relatively high under dark incubation, reinforcing the idea that primary production by chemoautotrophs is an important process in the springs. The small amounts of hydrocarbons in gases exsolving from the springs (0.38 to 0.51% CH(4)) were compositionally and isotopically consistent with microbial methanogenesis and possible methanotrophy. Anaerobic heterotrophic sulfur oxidation and aerobic autotrophic sulfur oxidation activities were demonstrated in sediment slurries. Overall, our results describe an active microbial community capable of sustainability in an extreme environment that experiences prolonged periods of continuous light or darkness, low temperatures, and moderate salinity, where life seems to rely on chemolithoautotrophy.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.