Actions for Microbial ecology of extreme environments : Antarctic dry valley yeasts and growth in substrate limited habitats

Email RIS file
Bookmark
Report an Issue

Microbial ecology of extreme environments : Antarctic dry valley yeasts and growth in substrate limited habitats

Author
Vishniac, H. S.
Published
Nov 30, 1981.
Physical Description
1 electronic document
Online Version

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
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 Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19820013995.
Accession ID: 82N21869.
NAS 1.26:168742.
NASA-CR-168742.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15716431