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Pyrolobus fumarii, gen. and sp. nov., represents a novel group of archaea, extending the upper temperature limit for life to 113 degrees C

Blöchl, E. ; Rachel, Reinhard ; Burggraf, S. ; Hafenbradl, D. ; Jannasch, H. W. ; Stetter, Karl Otto



Abstract

A novel, irregular, coccoid-shaped archaeum was isolated from a hydrothermally heated black smoker wall at the TAG site at the Mid Atlantic Ridge (depth 3650 meters). It grew at between 90 degrees C and 113 degrees C (optimum 106 degrees C) and pH 4.0-6.5 (optimum 5.5) and 1%-4% salt (optimum 1.7%). The organism was a facultatively aerobic obligate chemolithoautotroph gaining energy by ...

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