Perennial Antarctic lake ice: An oasis for life in a polar desert

被引：271

作者：

Priscu, JC ^{[1
]}

Fritsen, CH

Adams, EE

Giovannoni, SJ

Paerl, HW

McKay, CP

Doran, PT

Gordon, DA

Lanoil, BD

Pinckney, JL

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] Oregon State Univ, Dept Microbiol, Corvallis, OR 97331 USA

[4] Univ N Carolina, Inst Marine Sci, Morehead City, NC 28557 USA

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

[6] Univ Illinois, Chicago, IL 60607 USA

来源：

SCIENCE | 1998年 / 280卷 / 5372期

关键词：

D O I：

10.1126/science.280.5372.2095

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：

The permanent ice covers of Antarctic lakes in the McMurdo Dry Valleys develop liquid water inclusions in response to solar heating of internal aeolian-derived sediments. The ice sediment particles serve as nutrient (inorganic and organic)-enriched microzones for the establishment of a physiologically and ecologically complex microbial consortium capable of contemporaneous photosynthesis,.nitrogen fixation, and decomposition. The consortium is capable of physically and chemically establishing and modifying a relatively nutrient- and organic matter-enriched microbial "oasis" embedded in the lake ice cover.

引用

页码：2095 / 2098

页数：4

共 25 条

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