Amino acids as a source of organic nitrogen in Antarctic endolithic microbial communities
In the Antarctic Dry Valleys, cryptoendolithic microbial communities occur within porous sandstone rocks. Current understanding of the mechanisms of physiological adaptation of these communities to the harsh Antarctic environment is limited, because traditional methods of studying microbial physiolo...
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ftnasajpl:oai:trs.jpl.nasa.gov:2014/37217 2023-05-15T13:46:47+02:00 Amino acids as a source of organic nitrogen in Antarctic endolithic microbial communities McDonald, G. Sun, H. 2004-11-09T23:10:31Z 2802243 bytes application/pdf http://hdl.handle.net/2014/37217 en_US eng American Geophysical Union fall meeting San Francisco, CA, USA 02-2976 http://hdl.handle.net/2014/37217 Antarctica 2004 ftnasajpl 2021-12-23T13:16:39Z In the Antarctic Dry Valleys, cryptoendolithic microbial communities occur within porous sandstone rocks. Current understanding of the mechanisms of physiological adaptation of these communities to the harsh Antarctic environment is limited, because traditional methods of studying microbial physiology are very difficult to apply to organisms with extremely low levels of metabolic activity. In order to fully understand carbon and nitrogen cycling and nutrient uptake in cryptoendolithic communities, and the metabolic costs that the organisms incur in order to survive, it is necessary to employ molecular geochemical techniques such as amino acid analysis in addition to physiological methods. Other/Unknown Material Antarc* Antarctic Antarctica JPL Technical Report Server Antarctic The Antarctic |
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JPL Technical Report Server |
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ftnasajpl |
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English |
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Antarctica |
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Antarctica McDonald, G. Sun, H. Amino acids as a source of organic nitrogen in Antarctic endolithic microbial communities |
topic_facet |
Antarctica |
description |
In the Antarctic Dry Valleys, cryptoendolithic microbial communities occur within porous sandstone rocks. Current understanding of the mechanisms of physiological adaptation of these communities to the harsh Antarctic environment is limited, because traditional methods of studying microbial physiology are very difficult to apply to organisms with extremely low levels of metabolic activity. In order to fully understand carbon and nitrogen cycling and nutrient uptake in cryptoendolithic communities, and the metabolic costs that the organisms incur in order to survive, it is necessary to employ molecular geochemical techniques such as amino acid analysis in addition to physiological methods. |
author |
McDonald, G. Sun, H. |
author_facet |
McDonald, G. Sun, H. |
author_sort |
McDonald, G. |
title |
Amino acids as a source of organic nitrogen in Antarctic endolithic microbial communities |
title_short |
Amino acids as a source of organic nitrogen in Antarctic endolithic microbial communities |
title_full |
Amino acids as a source of organic nitrogen in Antarctic endolithic microbial communities |
title_fullStr |
Amino acids as a source of organic nitrogen in Antarctic endolithic microbial communities |
title_full_unstemmed |
Amino acids as a source of organic nitrogen in Antarctic endolithic microbial communities |
title_sort |
amino acids as a source of organic nitrogen in antarctic endolithic microbial communities |
publishDate |
2004 |
url |
http://hdl.handle.net/2014/37217 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
American Geophysical Union fall meeting San Francisco, CA, USA 02-2976 http://hdl.handle.net/2014/37217 |
_version_ |
1766245206638723072 |