Query: NC_015458:2614108 Pusillimonas sp. T7-7 chromosome, complete genome
Lineage: Pusillimonas; Pusillimonas; Alcaligenaceae; Burkholderiales; Proteobacteria; Bacteria
General Information: Isolated from the benthal mud of a petroleum-contaminated site in Bohai Sea, China. Gram-negative bacterium isolated from the seabed mud of Bohai Sea, in a petroleum-contaminated region. It is cold tolerant (grows between 4 to 37°C, optimum 30°C), salt tolerant (5% NaCl), and able to utilize diesel oils as the sole carbon source for growth.
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.