极端条件下的生命:冰封12万年细菌复活(图)(2)
2. Herminiimonas glaciei细菌
Herminiimonas glaciei细菌
左侧的细菌名为“Herminiimonas glaciei”,是在格陵兰一条冰川下方2英里(约合3公里)处的冰层中发现的,它是迄今为止发现的体积最小的微生物。Herminiimonas glaciei生有类似尾巴的超长鞭毛,最适合在冰层微小的纹理中移动。在上周发表于《国际系统与进化微生物学杂志》的一篇研究论文中,宾夕法尼亚州大学的研究人员报告说已成功让Herminiimonas glaciei苏醒过来,在此之前,这种细菌估计已沉睡了12万年。2008年6月,宾州大学研究小组报告了另一种在冰川发现并在实验室成功苏醒的细菌——Chryseobacterium greenlandensis。他们认为这一细菌的年龄高达两百万年。
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