How low can you go activity of permafrost microorganisms at very low temperature
Arctic microorganisms are subjected to low or very low temperatures. In the deep permafrost soil, bacteria are known to be active at -39 oC. In surface soils, arctic bacteria and fungi survive not only the low temperatures during the long arctic winterbut also the physiological stresses related to freezing-thawing cycles and changes in osmolarity.
The work may involve transcriptomic analyses of pure cultures of bacteria and fungi as well as of complex microbial communities in permafrost soil. Measurements of greenhouse gas production and sequencing of microbial genomes may also be included in the work.
|Keywords:||Microbial physiology, Extreme biology, Transcriptomics, Permafrost, Low temperature biology|