Query: NC_015697:33665 Lactobacillus reuteri SD2112 chromosome, complete genome
Lineage: Lactobacillus reuteri; Lactobacillus; Lactobacillaceae; Lactobacillales; Firmicutes; Bacteria
General Information: Lactobacillus reuteri is a member of the normal microbial community of the gut in humans and animals. This organism produces antibiotic compounds, such as reutericin and reuterin, which have inhibitory effects on pathogenic microorganisms. In addition, Lactobacillus reuteri is commonly used as a probiotic to maintain the balance of the gut microbial flora and stimulate the intestinal immune system.
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.