ピュロコックス属
形態は0.8-2.0μmほどの球菌。1本あるいは多極の鞭毛を持つ。細胞壁はS-レイヤーより構成される。
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González JM, Masuchi Y, Robb FT, Ammerman JW, Maeder DL, Yanagibayashi M, Tamaoka J, Kato C (1998). “Pyrococcus horikoshii sp. nov., a hyperthermophilic archaeon isolated from a hydrothermal vent at the Okinawa Trough”. Extremophiles. 2: 123–130.
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