Query: NC_015942:1167785 Acidithiobacillus ferrivorans SS3 chromosome, complete genome
Lineage: Acidithiobacillus ferrivorans; Acidithiobacillus; Acidithiobacillaceae; Acidithiobacillales; Proteobacteria; Bacteria
General Information: Isolation: Norilsk, Russia; Temp: Psychrotolerant. This organism is an acidophilic bacterium able to grow at a pH as low as 1.9 (optimum pH of 2.5). This bacterium is able to grow using sulfur and ferrous iron as electron donors.
Subject: NC_010424:1778459 Candidatus Desulforudis audaxviator MP104C, complete genome
Lineage: Desulforudis audaxviator; Desulforudis; Peptococcaceae; Clostridiales; Firmicutes; Bacteria
General Information: Its genome indicates a motile, sporulating, sulfate-reducing, chemoautotrophic thermophile that can fix its own nitrogen and carbon by using machinery shared with archaea. Candidatus Desulforudis audaxviator is a gram positive sulfate reducing bacteria identified in fracture water from a borehole at a depth of 2.8 km in a South African gold mine. Water from these boreholes is very old (low-biodiversity fracture water), suggesting that these bacteria have been isolated from the Earth's surface for as much as several million years.