Query: NC_008818:1172440 Hyperthermus butylicus DSM 5456, complete genome
Lineage: Hyperthermus butylicus; Hyperthermus; Pyrodictiaceae; Desulfurococcales; Crenarchaeota; Archaea
General Information: This organism was isolated from the sea floor of a solfataric (volcanic area that gives off gas) environment with temperatures up to 112 degrees C at a depth of 9 m, off the shore of Sao Miguel Island, Azores. Hyperthermophilic sulfur-reducing archaeon. This bacterium is an extreme hyperthermophilic, anaerobic, sulfur-reducing archaeon. Grows optimally at 95-106 degress C, with a NaCl concentration of 17 g/l and a pH of 7.0.
Subject: NC_000854:191705 Aeropyrum pernix K1, complete genome
Lineage: Aeropyrum pernix; Aeropyrum; Desulfurococcaceae; Desulfurococcales; Crenarchaeota; Archaea
General Information: This organism, which was the first strictly aerobic hyperthermophilic archaeon sequenced, was isolated from a coastal solfataric (volcanic hydrothermal area that gives off sulfuric gases) thermal vent at Kodakara-Jima Island, Japan in 1993. Aeropyrum pernix is an aerobic hyperthermophile. This organism grows between 70 and 100 degrees C , with optimal growth at 90-95 degrees C, pH 5-9 with a optimum of pH 7.0, and a salinity of 3.5%. This organism is highly motile and cells are often surrounded by pili-like appendages. Doubling time is 200 minutes in optimal growth conditions. It does not require sulfur-containing compounds for growth, and thus does not form hydrogen sulfide during growth.