Query: NC_010531:428000 Polynucleobacter necessarius STIR1, complete genome Lineage: Polynucleobacter necessarius; Polynucleobacter; Burkholderiaceae; Burkholderiales; Proteobacteria; Bacteria General Information: This strain is an obligate intracellular endosymbiont of the cilliate Euplotes aediculatus. This group of organisms is common in freshwater, comprising up to 60% of the bacteria in freshwater habitats. Polynucleobacter species are also known to be endosymbionts of ciliates. These strains live within the cytoplasm and are essential for their host organisms.
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General Information: Alkene-degrading bacterium. Xanthobacter autotrophicus is a nitrogen-fixing methylotroph, commonly isolated from organic rich soil, sediment and water. This organism uses an alkene-specific monooxygenase to convert propene to epoxypropane. This monooxygenase is also able to catalyze the initial step in the cometabolism of chlorinated alkenes such as vinyl chloride and trichloroethene. The Xanthobacter autotrophicus alkene monooxygenase and other genes involved in alkene degradation are located on a 320 kb megaplasmid.