首页> 外文会议>Conference on Instruments, Methods, and Missions for Astrobiology V, Aug 22-23, 2002, Waikoloa, Hawaii, USA >Evidence for Microorganisms in Stratospheric Air Samples Collected at a Height of 41 km
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Evidence for Microorganisms in Stratospheric Air Samples Collected at a Height of 41 km

机译:在41 km高空收集的平流层空气样本中微生物的证据

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Samples of air removed from the stratosphere, at an altitude of 41km, were previously found to contain viable, but non-cultureable bacteria (cocci and rods). Here, we describe experiments aimed at growing these organisms, together with any others, present in the samples. Two bacteria (Bacillus simplex and Staphylococcus pasteuri) and a single fungus, Engyodontium albus (Limber)de Hoog were isolated from the samples. Contamination can never be ruled out when space-derived samples are studied on earth, however, we are confident that the organisms isolated here originated from the stratosphere.
机译:先前发现从平流层除去的空气样本高度为41 km,其中包含活菌,但不可培养细菌(球菌和棒状菌)。在这里,我们描述了旨在使样本中存在的这些生物以及其他任何生物一起生长的实验。从样品中分离出两种细菌(单纯芽孢杆菌和巴斯德葡萄球菌)和一种真菌,白En(Engyodontium albus,Limber)de Hoog。在地球上研究源自太空的样本时,永远不能排除污染,但是,我们相信这里分离出的生物起源于平流层。

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