Query: NC_012438:1600534 Sulfurihydrogenibium azorense Az-Fu1 chromosome, complete genome
Lineage: Sulfurihydrogenibium azorense; Sulfurihydrogenibium; Hydrogenothermaceae; Aquificales; Aquificae; Bacteria
General Information: This strain was isolated from a terrestrial hot spring in the Azores, where it was living at temperatures between 65 degrees C and 70 degrees C. Hydrogen-oxidizing thermophile. Sulfurihydrogenibium azorense is a thermophilic bacterium that is able to use hydrogen and sulfur compounds as electron donors. This organism is also able to use ferric iron and arsenate as electron acceptors. This is the first pure culture terrestrial member of the Aquificales group, isolated by dilution-to-extinction methods.
Subject: NC_009664:1569335 Kineococcus radiotolerans SRS30216, complete genome
Lineage: Kineococcus radiotolerans; Kineococcus; Kineosporiaceae; Actinomycetales; Actinobacteria; Bacteria
General Information: This organism is a coccoid bacterium originally isolated from a high-level radioactive waste cell at the Savannah River Site in Aiken, South Carolina, USA, in 2002. Radiation-resistant bacterium. Similarly to Deinococcus radiodurans, K. radiotolerans exhibits a high degree of resistance to ionizing gamma-radiation. Cells are also highly resistant to dessication. Kineococcus-like 16S rRNA gene sequences have been reported from the Mojave desert and other arid environments where these bacteria seem to be ubiquitous. Because of its high resistance to ionizing radiation and desiccation, K. radiotolerans has potential use in applications involving in situ biodegradation of problematic organic contaminants from highly radioactive environments. Moreover, comparative functional genomic characterization of this species and other known radiotolerant bacteria such as Deinococcus radiodurans and Rubrobacter xylanophilus will shed light onto the strategies these bacteria use for survival in high radiation environments, as well as the evolutionary origins of radioresistance and their highly efficient DNA repair machinery. This organism produces an orange carotenoid-like pigment. Cell growth occurs between 11-41 degresss C, pH 5-9, and in the presence of <5% NaCl and <20% glucose. Carbohydrates and alcohols are primary growth substrates.