Query: NC_011126:1241655 Hydrogenobaculum sp. Y04AAS1, complete genome
Lineage: Hydrogenobaculum; Hydrogenobaculum; Aquificaceae; Aquificales; Aquificae; Bacteria
General Information: Thermoacidophilic isolate from a stream adjacent to Obsidian Pool in Yellowstone National Park, United States.
Subject: NC_011420:2692857 Rhodospirillum centenum SW, complete genome
Lineage: Rhodospirillum centenum; Rhodospirillum; Rhodospirillaceae; Rhodospirillales; Proteobacteria; Bacteria
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.