Query: NC_008048:2838769 Sphingopyxis alaskensis RB2256, complete genome
Lineage: Sphingopyxis alaskensis; Sphingopyxis; Sphingomonadaceae; Sphingomonadales; Proteobacteria; Bacteria
General Information: Isolated from Resurrection Bay in the Gulf of Alaska. It is a model oligotrophic organism and forms a very small cell size. his genus was created from the Sphingomonas genus on the basis of phylogenetic, phenotypic, and chemotaxonomic characteristics. Sphingopyxis alaskensis is one of the most numerically abundant microbes found in oligotrophic marine waters and is an important contributor of biomass.
Subject: NC_002607:1868371 Halobacterium sp. NRC-1, complete genome
Lineage: Halobacterium; Halobacterium; Halobacteriaceae; Halobacteriales; Euryarchaeota; Archaea
General Information: Chemoheterotrophic obligate extreme halophilic archeon. This microbe (strain ATCC 700922) is an obligately halophilic archeon that has adapted to growth under conditions of extremely high salinity. Motility is via tufts of polar flagella and intracellular gas vesicles are used for buoyancy. This organism grow aerobically and its ease of culturing combined with the availability of established methods of genetic manipulation in the laboratory make it an ideal model organism for study of the archaea.