Query: NC_010730:346287 Sulfurihydrogenibium sp. YO3AOP1, complete genome
Lineage: Sulfurihydrogenibium; Sulfurihydrogenibium; Hydrogenothermaceae; Aquificales; Aquificae; Bacteria
General Information: Carbon fixation. Unable to oxidize hydrogen although hydrogen oxidation was thought to be universal in this group. Isolated from near-neutral-pH terrestrial hot springs in Obsidian Pool in Yellowstone National Park, USA.
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.