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

Dirmeier, Reinhard and Keller, Martin and Hafenbradl, Doris and Braun, Franz-Josef and Rachel, Reinhard and Burggraf, Siegfried and Stetter, Karl O. (1998) Thermococcus acidaminovorans sp. nov., a new hyperthermophilic alkalophilic archaeon growing on amino acids. EXTREMOPHILES, 2 (2). pp. 109-114. ISSN 1431-0651, 1433-4909

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Abstract

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 substrates such as casamino acids, yeast extract, peptone, meat extract, tryptone, and casein. Polysulfide and elemental sulfur are reduced to H2S. In the absence of polysulfide or elemental sulfur, the isolate grows at a significantly reduced rate. Growth is not influenced by the presence of H-2. DNA-DNA hybridization and 16S rRNA partial sequences indicated that the new isolate belongs to the genus Thermococcus, and represents a new species, Thermococcus acidaminovorans. The type strain is isolate AEDII10 (DSM 11906).

Item Type: Article
Uncontrolled Keywords: SEA HYDROTHERMAL VENT; PYROCOCCUS-FURIOSUS; GEN-NOV; ARCHAEBACTERIA; REPRESENTS; GROWTH; 105-DEGREES-C; LITORALIS; ORGANISMS; BACTERIA; archaea; hyperthermophiles; Thermococcus acidaminovorans; defined amino acids; polysulfide reduction; alkaline pH
Subjects: 500 Science > 570 Life sciences
Divisions: Biology, Preclinical Medicine > Institut für Biochemie, Genetik und Mikrobiologie > Lehrstuhl für Mikrobiologie (Archaeenzentrum) > Prof. Dr. Reinhard Rachel
Depositing User: Dr. Gernot Deinzer
Date Deposited: 23 Feb 2023 12:01
Last Modified: 23 Feb 2023 12:01
URI: https://pred.uni-regensburg.de/id/eprint/49835

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