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Thermococcus acidaminovorans sp. nov., a new hyperthermophilic alkalophilic archaeon growing on amino acids

Dirmeier, R. ; Keller, M. ; Hafenbradl, D. ; Braun, F. J. ; Rachel, Reinhard ; Burggraf, S. ; Stetter, Karl Otto


From a shallow marine hydrothermal system at Vulcano (Italy), a new hyperthermophilic member of the Archaea was isolated. The cells are coccoid - shaped and possess up to five flagella. They grow between 56 degrees and 93 degrees C (optimum 85 degrees C) and pH 5.0-9.5 (optimum 9.0). The organism is strictly anaerobic and grows heterotrophically on defined amino acids and complex organic ...


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