HOT SUBTERRANEAN BIOSPHERE IN A CONTINENTAL OIL-RESERVOIR
HOT SUBTERRANEAN BIOSPHERE IN A CONTINENTAL OIL-RESERVOIR
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DOI：
10.1038/377223a0
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发表时间：
1995-09-21
期刊：
影响因子：
64.8
通讯作者：
JEANTHON, C
中科院分区：
文献类型：
--
作者：
LHARIDON, S;REYSENBACH, AL;JEANTHON, C
阿拉斯加油田中存在高浓度的超嗜热古菌被归因于注入海水中低浓度的存活超嗜热菌，但排除了油藏内本地群落的存在(1)。在这里，我们提供了来自地表以下约 1,670 m 的大陆石油储层中存在本土嗜热细菌和超嗜热古菌的证据。从不同的孔中反复获得嗜热分离株，并在与孔中条件相似的培养基中繁衍生息，表明这些分离株是深层本地嗜热群落的成员。海洋超嗜热古菌在大陆深处环境中的出人意料的存在扩展了该类生物体的已知生态栖息地，它们与陆地细菌的不寻常共存表明嗜热菌可能广泛存在于地壳深处。
THE presence of high concentrations of hyperthermophilic archaea in Alaskan oil fields has been attributed to viable hyperthermophiles in low concentrations in the injected sea water, but the existence of an indigenous community within the reservoir was ruled out(1). Here we present evidence for the existence of indigenous thermophilic bacteria and hyperthermophilic archaea from a continental petroleum reservoir about 1,670 m below the surface. The thermophilic isolates were repeatedly obtained from different wells and thrived in media similar to conditions in the wells, suggesting that these isolates are members of a deep indigenous thermophilic community. The unexpected presence of marine hyperthermophilic archaea in a deep continental environment extends the known ecological habitat of this group of organisms, and their unusual coexistence with terrestrial bacteria suggests that thermophiles may be widespread deep in the crust of the earth.