Geomicrobiology of subglacial ice above Lake Vostok, Antarctica

被引：267

作者：

Priscu, JC ^{[1
]}

Adams, EE

Lyons, WB

Voytek, MA

Mogk, DW

Brown, RL

McKay, CP

Takacs, CD

Welch, KA

Wolf, CF

Kirshtein, JD

Avci, R

机构：

[1] Montana State Univ, Dept Biol Sci, Bozeman, MT 59717 USA

[2] Montana State Univ, Dept Civil Engn, Bozeman, MT 59717 USA

[3] Montana State Univ, Dept Earth Sci, Bozeman, MT 59717 USA

[4] Montana State Univ, Dept Phys, Bozeman, MT 59717 USA

[5] Univ Alabama, Dept Geol, Tuscaloosa, AL 35487 USA

[6] US Geol Survey, Reston, VA 20192 USA

[7] NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA

来源：

SCIENCE | 1999年 / 286卷 / 5447期

关键词：

D O I：

10.1126/science.286.5447.2141

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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.

引用

页码：2141 / 2144

页数：4

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