Query: NC_015474:644552 Pyrococcus sp. NA2 chromosome, complete genome
Lineage: Pyrococcus; Pyrococcus; Thermococcaceae; Thermococcales; Euryarchaeota; Archaea
General Information: Pyrococcus has similar characteristics of other thermoautotrophican archaea such as Archaeoglobus, and Methanococcus in the respect that they are all thermophilic and anaerobic. Pyrococcus differs, however, because its optimal growth temperature is nearly 100 °C and dwells at a greater sea depth than the other archaea. Studying Pyrococcus helps give insight to possible mechanisms used to endure extreme environmental conditions like high temperatures and high pressure.
Subject: NC_015707:1911431 Thermotoga thermarum DSM 5069 chromosome, complete genome
Lineage: Thermotoga thermarum; Thermotoga; Thermotogaceae; Thermotogales; Thermotogae; Bacteria
General Information: Country: Djibouti; Isolation: Continental solfataric spring; Africa; Temp: Hyperthermophile; Temp: 80C. This organism, a member of the Thermotogales, has the characteristic morphology of one or more cells contained in a sheath-like envelope which extends beyond the cell wall. Preliminary sequencing of Thermotogales genomes has identified extensive horizontal gene transfer between these organisms and the Archaea. Thermotoga thermarum does not grow at high salt concentrations (>0.6% NaCL). This organism also produces heat stable enzymes such as endoxylanase, beta xylosidase and alpha arabinofuranosidase which may have commercial uses.