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Assessing the Ecophysiology of Methanogens in the Context of Recent Astrobiological and Planetological Studies

机译:在最近的天文生物学和行星学研究的背景下评估产甲烷菌的生态生理

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Among all known microbes capable of thriving under extreme and, therefore, potentially extraterrestrial environmental conditions, methanogens from the domain Archaea are intriguing organisms. This is due to their broad metabolic versatility, enormous diversity, and ability to grow under extreme environmental conditions. Several studies revealed that growth conditions of methanogens are compatible with environmental conditions on extraterrestrial bodies throughout the Solar System. Hence, life in the Solar System might not be limited to the classical habitable zone. In this contribution we assess the main ecophysiological characteristics of methanogens and compare these to the environmental conditions of putative habitats in the Solar System, in particular Mars and icy moons. Eventually, we give an outlook on the feasibility and the necessity of future astrobiological studies concerning methanogens.
机译:在所有能够在极端环境(因此可能是外星环境)下繁殖的已知微生物中,来自古细菌领域的产甲烷菌是一种引人入胜的生物。这是由于它们具有广泛的代谢多功能性,巨大的多样性以及在极端环境条件下的生长能力。多项研究表明,产甲烷菌的生长条件与整个太阳系中地外物体的环境条件兼容。因此,太阳系中的生命可能不限于经典的可居住区域。在这项贡献中,我们评估了甲烷源的主要生态生理特征,并将其与太阳系中假定的栖息地(尤其是火星和冰月卫星)的环境条件进行了比较。最后,我们对有关产甲烷菌的未来天体生物学研究的可行性和必要性进行了展望。

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