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Archaeoglobus
''Archaeoglobus'' is a genus of the phylum Euryarchaeota.〔See the NCBI (webpage on Archaeoglobus ). Data extracted from the (【引用サイトリンク】 title=NCBI taxonomy resources )〕 ''Archaeoglobus'' can be found in high-temperature oil fields where they may contribute to oil field souring.
== Metabolism ==
''Archaeoglobus'' grow anaerobically at extremely high temperatures between 60 and 95 °C, with optimal growth at 83 °C (ssp. ''A. fulgidus'' VC-16).〔 They are sulfate-reducing archaea, coupling the reduction of sulfate to sulfide with the oxidation of many different organic carbon sources, including complex polymers.
''A. lithotrophicus'' live chemolitho-autotrophically from hydrogen, sulfate and carbon dioxide. Also ''A. profundus'' grow lithotrophically, but while this species needs acetate and CO2 for biosynthesis they are heterotroph.〔J. Vorholt et al. (''Enzymes and coenzymes of the carbon monoxide dehydrogenase pathway for autotrophic CO2 fixation in Archaeoglobus lithotrophicus and the lack of carbon monoxide dehydrogenase in the heterotrophic A. profundus'' ) Arch. Microbiol. 163, 112–118 (1995). 〕
The complete ''A. fulgidus'' genome sequence revealed the presence of a nearly complete set of genes for methanogenesis. The function of these genes in ''A. fulgidus'' remains unknown, while the lack of the enzyme methyl-CoM reductase does not allow for methanogenesis to occur by a mechanism similar to that found in other methanogens.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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