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Species of archaeon From Wikipedia, the free encyclopedia
Palaeococcus helgesonii is a hyperthermophillic, anaerobic yet microaerobic archaeon from a geothermal well found in Vulcano, Italy.[1] It is characterized as sphere-shaped, has a cell diameter ranging from 0.6 to 1.5 μm, a cell envelope consisting of a cytoplasmic membrane, a periplasmic space, a thin, electron-dense layer, and tufts of polar flagella.[1] It occurs singly or in pairs. It can survive in temperatures ranging from 45 to 80°C, a pH range of 5 to 8, and a salt range of 0.5 to 6.0%.[1] In optimal conditions (a temperature of 80°C, a pH around 6.5, and a salt level of 2.8), it has a doubling time of 50 minutes.[1] It also has a G+C of 42.5 mol.%.[1]
Palaeococcus helgesonii | |
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Species: | P. helgesonii |
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Palaeococcus helgesonii Amend et al. 2006 | |
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