Microbial ecology of extreme environments: Antarctic dry valley yeasts and growth in substrate limited habitats
The multiple stresses temperature, moisture, and for chemoheterotrophs, sources of carbon and energy of the Dry Valley Antarctica soils allow at best depauperate communities, low in species diversity and population density. The nature of community structure, the operation of biogeochemical cycles, t...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19820013995 2023-05-15T13:36:56+02:00 Microbial ecology of extreme environments: Antarctic dry valley yeasts and growth in substrate limited habitats Vishniac, H. S. Unclassified, Unlimited, Publicly available Nov 30, 1981 application/pdf http://hdl.handle.net/2060/19820013995 unknown Document ID: 19820013995 Accession ID: 82N21869 http://hdl.handle.net/2060/19820013995 No Copyright CASI LIFE SCIENCES (GENERAL) NASA-CR-168742 NAS 1.26:168742 1981 ftnasantrs 2019-07-21T04:44:54Z The multiple stresses temperature, moisture, and for chemoheterotrophs, sources of carbon and energy of the Dry Valley Antarctica soils allow at best depauperate communities, low in species diversity and population density. The nature of community structure, the operation of biogeochemical cycles, the evolution and mechanisms of adaptation to this habitat are of interest in informing speculations upon life on other planets as well as in modeling the limits of gene life. Yeasts of the Cryptococcus vishniacil complex (Basidiobiastomycetes) are investigated, as the only known indigenes of the most hostile, lichen free, parts of the Dry Valleys. Methods were developed for isolating these yeasts (methods which do not exclude the recovery of other microbiota). The definition of the complex was refined and the importance of nitrogen sources was established as well as substrate competition in fitness to the Dry Valley habitats. Other/Unknown Material Antarc* Antarctic Antarctica NASA Technical Reports Server (NTRS) Antarctic |
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NASA Technical Reports Server (NTRS) |
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ftnasantrs |
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unknown |
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LIFE SCIENCES (GENERAL) |
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LIFE SCIENCES (GENERAL) Vishniac, H. S. Microbial ecology of extreme environments: Antarctic dry valley yeasts and growth in substrate limited habitats |
topic_facet |
LIFE SCIENCES (GENERAL) |
description |
The multiple stresses temperature, moisture, and for chemoheterotrophs, sources of carbon and energy of the Dry Valley Antarctica soils allow at best depauperate communities, low in species diversity and population density. The nature of community structure, the operation of biogeochemical cycles, the evolution and mechanisms of adaptation to this habitat are of interest in informing speculations upon life on other planets as well as in modeling the limits of gene life. Yeasts of the Cryptococcus vishniacil complex (Basidiobiastomycetes) are investigated, as the only known indigenes of the most hostile, lichen free, parts of the Dry Valleys. Methods were developed for isolating these yeasts (methods which do not exclude the recovery of other microbiota). The definition of the complex was refined and the importance of nitrogen sources was established as well as substrate competition in fitness to the Dry Valley habitats. |
format |
Other/Unknown Material |
author |
Vishniac, H. S. |
author_facet |
Vishniac, H. S. |
author_sort |
Vishniac, H. S. |
title |
Microbial ecology of extreme environments: Antarctic dry valley yeasts and growth in substrate limited habitats |
title_short |
Microbial ecology of extreme environments: Antarctic dry valley yeasts and growth in substrate limited habitats |
title_full |
Microbial ecology of extreme environments: Antarctic dry valley yeasts and growth in substrate limited habitats |
title_fullStr |
Microbial ecology of extreme environments: Antarctic dry valley yeasts and growth in substrate limited habitats |
title_full_unstemmed |
Microbial ecology of extreme environments: Antarctic dry valley yeasts and growth in substrate limited habitats |
title_sort |
microbial ecology of extreme environments: antarctic dry valley yeasts and growth in substrate limited habitats |
publishDate |
1981 |
url |
http://hdl.handle.net/2060/19820013995 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
CASI |
op_relation |
Document ID: 19820013995 Accession ID: 82N21869 http://hdl.handle.net/2060/19820013995 |
op_rights |
No Copyright |
_version_ |
1766085705916743680 |