Query: NC_013158:1659426 Halorhabdus utahensis DSM 12940, complete genome
Lineage: Halorhabdus utahensis; Halorhabdus; Halobacteriaceae; Halobacteriales; Euryarchaeota; Archaea
General Information: Isolation: Sediment of Great Salt Lake, Utah; Country: USA; Temp: Mesophile; Temp: 50C; Habitat: Soil. Extreme halophilic archaeon. This organism is an obligately halophilic microorganisms which has adapted to optimal growth under conditions of extremely high salinity up to 10 times that of sea water.
Subject: NC_010556:462500 Exiguobacterium sibiricum 255-15, complete genome
Lineage: Exiguobacterium sibiricum; Exiguobacterium; Bacillales Family XII; Bacillales; Firmicutes; Bacteria
General Information: This organism was isolated from a 2-3 million-year permafrost core in Siberia, Russia and can survive and grow rapidly at low temperatures. Analysis of long-term survival of psychrophilic organisms such as this one may aid understanding of the potential growth of organisms in astrobiology. Exiguobacterium sibiricum is a psychrotolerant organism able to grow at temperatures that range from -6 to 40 degrees C. This organism is also able to survive repeated freeze/thaw cycles which may contribute to its ability to survive in cold environments.