Title |
Geomicrobiology of Subglacial Ice Above Lake Vostok, Antarctica
|
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Published in |
Science, December 1999
|
DOI | 10.1126/science.286.5447.2141 |
Pubmed ID | |
Authors |
John C. Priscu, Edward E. Adams, W. Berry Lyons, Mary A. Voytek, David W. Mogk, Robert L. Brown, Christopher P. McKay, Cristina D. Takacs, Kathy A. Welch, Craig F. Wolf, Julie D. Kirshtein, Recep Avci |
Abstract |
Data from ice 3590 meters below Vostok Station indicate that the ice was accreted from liquid water associated with Lake Vostok. Microbes were observed at concentrations ranging from 2.8 x 10(3) to 3.6 x 10(4) cells per milliliter; no biological incorporation of selected organic substrates or bicarbonate was detected. Bacterial 16S ribosomal DNA genes revealed low diversity in the gene population. The phylotypes were closely related to extant members of the alpha- and beta-Proteobacteria and the Actinomycetes. Extrapolation of the data from accretion ice to Lake Vostok implies that Lake Vostok may support a microbial population, despite more than 10(6) years of isolation from the atmosphere. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 10 | 4% |
France | 2 | <1% |
Germany | 1 | <1% |
Brazil | 1 | <1% |
South Africa | 1 | <1% |
Chile | 1 | <1% |
Czechia | 1 | <1% |
India | 1 | <1% |
Puerto Rico | 1 | <1% |
Other | 1 | <1% |
Unknown | 231 | 92% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 55 | 22% |
Researcher | 55 | 22% |
Student > Master | 29 | 12% |
Student > Bachelor | 27 | 11% |
Professor | 21 | 8% |
Other | 34 | 14% |
Unknown | 30 | 12% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 73 | 29% |
Earth and Planetary Sciences | 60 | 24% |
Environmental Science | 30 | 12% |
Biochemistry, Genetics and Molecular Biology | 17 | 7% |
Physics and Astronomy | 11 | 4% |
Other | 24 | 10% |
Unknown | 36 | 14% |