Query: NC_014392:412916 Caldicellulosiruptor obsidiansis OB47 chromosome, complete genome Lineage: Caldicellulosiruptor obsidiansis; Caldicellulosiruptor; Thermoanaerobacterales Family III; Thermoanaerobacterales; Firmicutes; Bacteria General Information: Country: USA; Environment: Hot spring; Habitat: Fresh water, Hot spring; Isolation: Obsidian Pool, Yellowstone National Park, USA; Temp: 55-85C. This species is an extremely thermophilic anaerobic bacteria, isolated from Obsidian Pool, Yellowstone National Park. It is a novel cellulolytic bacteria. Caldicellulosiruptor is a genus of thermophilic gram positive bacteria. These organisms produce a number of thermostable enzymes which may have industrial uses.
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General Information: Rhodospirillum centenum, also called Rhodocista centenaria, is a nitrogen-fixing photoheterotroph with a complex life cycle. R. centenum is one of the few known thermotolerant purple bacteria species with optimal growth temperature of 44 dgrees C and a maximal growth temperature of 48 degrees C. In liquid media this organism is motile by a single polar flagellum. R. centenum produces lateral flagella to become a swarming cell. Under low nutrient conditions R. centenum forms a desiccation- and UV-resistant cyst. R. centenum can often be cultivated from hot springs such as those found at Yellowstone National Park. R. centenum is emerging as a model organism for genetic and molecular genetic analysis of cyst formation.