| Literature DB >> 9641910 |
J C Priscu1, C H Fritsen, E E Adams, S J Giovannoni, H W Paerl, C P McKay, P T Doran, D A Gordon, B D Lanoil, J L Pinckney.
Abstract
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.Entities:
Keywords: NASA Center ARC; NASA Discipline Exobiology
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Year: 1998 PMID： 9641910 DOI： 10.1126/science.280.5372.2095
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728