Query: NC_012988:769981 Methylobacterium extorquens DM4, complete genome
Lineage: Methylobacterium extorquens; Methylobacterium; Methylobacteriaceae; Rhizobiales; Proteobacteria; Bacteria
General Information: Methylobacterium extorquens DM4 was isolated from soil contaminated with halogenated (chlorine-containing) hydrocarbons. This organism is able to use dichloromethane as a sole carbon and energy source. Dichloromethane, an industrial solvent, is toxic and carcinogenic. This compound is water soluble and can easily contaminate groundwater. Methylobacterium chloromethanicum was isolated from soil at a petrochemical factory in Tatarstan, Russia. This organism is able to grow using chloromethane as the sole carbon and energy source.
Subject: NC_000917:1778173 Archaeoglobus fulgidus DSM 4304, complete genome
Lineage: Archaeoglobus fulgidus; Archaeoglobus; Archaeoglobaceae; Archaeoglobales; Euryarchaeota; Archaea
General Information: This is the type strain (DSM 4304) of the Archaeoglobales, and was isolated from a geothermally heated sea floor at Vulcano Island, Italy. Doubling time is four hours under optimal conditions. The organism is an autotrophic or organotrophic sulfate/sulfite respirer. An additional distinguishing characteristic is blue-green fluorescence at 420 nm. This bacterium is the first sulfur-metabolizing organism to have its genome sequence determined. Growth by sulfate reduction is restricted to relatively few groups of prokaryotes; all but one of these are Eubacteria, the exception being the archaeal sulfate reducers in the Archaeoglobales. These organisms are unique in that they are only distantly related to other bacterial sulfate reducers, and because they can grow at extremely high temperatures. The known Archaeoglobales are strict anaerobes, most of which are hyperthermophilic marine sulfate reducers found in hydrothermal environments. High-temperature sulfate reduction by Archaeoglobus species contributes to deep subsurface oil-well 'souring' by iron sulfide, which causes corrosion of iron and steel in oil-and gas-processing systems.