Microorganisms in the accreted ice of Lake Vostok, Antarctica.

@article{Karl1999MicroorganismsIT,
  title={Microorganisms in the accreted ice of Lake Vostok, Antarctica.},
  author={David M. Karl and David F. Bird and Karin M. Bj{\"o}rkman and Terrence Houlihan and Rachel Shackelford and Luis M. Tupas},
  journal={Science},
  year={1999},
  volume={286 5447},
  pages={
          2144-7
        }
}
Analysis of a portion of Vostok ice core number 5G, which is thought to contain frozen water derived from Lake Vostok, Antarctica (a body of liquid water located beneath about 4 kilometers of glacial ice), revealed between 2 x 10(2) and 3 x 10(2) bacterial cells per milliliter and low concentrations of potential growth nutrients. Lipopolysaccharide (a Gram-negative bacterial cell biomarker) was also detected at concentrations consistent with the cell enumeration data, which suggests a… Expand
Geomicrobiology of subglacial ice above Lake Vostok, Antarctica.
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Bacterial 16S ribosomal DNA genes revealed low diversity in the gene population, and phylotypes were closely related to extant members of the alpha- and beta-Proteobacteria and the Actinomycetes. Expand
Microbiological Characterization of the Accreted Ice of Subglacial Lake Vostok, Antarctica
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It is suggested that the microorganisms found in the lake ice may come from different locations—the bottom layer of the glacier ice, the bedrock underlying the glacier, and the lake water. Expand
Isolation of Bacteria and Fungi from Lake Vostok Accretion Ice
Scott O. Rogers, Advisor Lake Vostok, located below the 4000 m thick Antarctic Ice Sheet, is the largest subglacial lake in Antarctica. The lake water has not been sampled due to concerns of forwardExpand
Isolation of bacteria and 16S rDNAs from Lake Vostok accretion ice.
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The recovery of bacterial isolates belonging to the Brachybacteria, Methylobacterium, Paenibacillus and Sphingomonas lineages are reported from a sample of melt water from this accretion ice that originated 3593 m below the surface. Expand
A habitat for psychrophiles in deep Antarctic ice.
  • P. Price
  • Geology, Medicine
  • Proceedings of the National Academy of Sciences of the United States of America
  • 2000
TLDR
A habitat consisting of interconnected liquid veins along three-grain boundaries in ice in which psychrophilic bacteria can move and obtain energy and carbon from ions in solution is proposed, which could help search for living microbes in deepest Antarctic ice. Expand
Isolation of fungi from Lake Vostok accretion ice
TLDR
The results, plus tests for growth at low temperatures, indicated that Lake Vostok contains a mixture of heterotrophic psychrotolerant fungal species, indicating that the lake is not sterile but contains a unique ecosystem. Expand
MICROBIAL LIFE IN EXTREME SUBGLACIAL ANTARCTIC LAKE ENVIRONMENTS : LAKE VOSTOK
The objective of the study was to estimate microbial content in accretion (frozen lake water) ice from Lake Vostok buried beneath 4-km thick East Antarctic ice sheet. The ultimate goal of the studyExpand
Ecology of Subglacial Lake Vostok (Antarctica), Based on Metagenomic/Metatranscriptomic Analyses of Accretion Ice
TLDR
Lake Vostok is the largest of the nearly 400 subglacial Antarctic lakes and has been continuously buried by glacial ice for 15 million years, and appears to contain a mixture of autotrophs and heterotophs capable of performing nitrogen fixation, nitrogen cycling, carbon fixation and nutrient recycling. Expand
A viable microbial community in a subglacial volcanic crater lake, Iceland.
TLDR
Denaturing gradient gel electrophoresis (DGGE) of 16S rRNA gene fragments amplified from genomic DNA extracted from Grímsvötn samples indicates that the lake community is distinct from the assemblages of organisms in borehole water (before penetration) and the overlying ice and snow. Expand
The hydrochemistry of Lake Vostok and the potential for life in Antarctic subglacial lakes
Our understanding of Lake Vostok, the huge subglacial lake beneath the East Antarctic Ice Sheet, has improved recently through the identification of key physical and chemical interactions between theExpand
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