The upper temperature of life--where do we draw the line?
The upper temperature of life--where do we draw the line?
复制标题
生命的最高温度——我们的界限在哪里？
作者：
D. Cowen
据报道，一种新的古细菌分离株能够在高达 121 摄氏度的温度下生长。这种超嗜热菌被称为菌株 121，使用甲酸作为电子供体和 FeIII 作为电子受体进行化学自养生长，并且与古细菌 Pyrodictium 和 Pyrobaculum 属的成员密切相关。尽管报告的菌株 121 的最高生长温度比之前的记录保持者（Pyrolobus fumarii；Tmax = 113 摄氏度）高 8 摄氏度，但这两种生物体具有几乎相同的最佳生长温度。
A new archaeal isolate has been reported that is capable of growing at up to 121 degrees C. The hyperthermophile, dubbed strain 121, grows chemoautotrophically using formate as an electron donor and FeIII as an electron acceptor and is closely related to members of the archaeal genera Pyrodictium and Pyrobaculum. Although the reported maximum growth temperature of strain 121 is 8 degrees C higher than the previous record holder (Pyrolobus fumarii; Tmax = 113 degrees C), the two organisms have virtually the same optimal growth temperatures.