Query: NC_013887:90929 Methanocaldococcus sp. FS406-22 chromosome, complete genome
Lineage: Methanocaldococcus; Methanocaldococcus; Methanocaldococcaceae; Methanococcales; Euryarchaeota; Archaea
General Information: Isolation: Deep-sea hydrothermal vent from Pacific; Temp: Thermophile; Temp: 90C; Habitat: Deep sea, Hydrothermal vent, Marine. Methanocaldococcus sp. FS406-22 was isolated from hydrothermal vent fluid from an undersea volcano in the northeast Pacific Ocean. This organism is able to fix nitrogen at temperatures of 92 degrees C.
Subject: NC_010556:71776 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.