Pre_GI: SWBIT SVG BLASTP

Query: NC_007514:335085 Chlorobium chlorochromatii CaD3, complete genome

Lineage: Chlorobium chlorochromatii; Chlorobium; Chlorobiaceae; Chlorobiales; Chlorobi; Bacteria

General Information: Chlorobium chlorochromatii CaD3 was isolated from a phototrophic consortia obtained from a freshwater lake in Germany. Chlorobium chlorochromatii is an green sulfur bacterium isolated from low temperature anaerobic fresh water habitats. This organism grows as part of a phototrophic consortium which consists of a colorless central bacterium surrounded by chlorosome-containing green sulfur epibionts. This organism is able to be grown in pure culture therefore is not an obligate symbiont. This organism is an obligate anaerobic phototroph able to fix nitrogen.

Subject: NC_010556:26567 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.