Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1007/s11214-019-0620-z |
| Microbial Diversity and Biosignatures: An Icy Moons Perspective | |
| Jebbar, Mohamed1; Hickman-Lewis, Keyron2,3; Cavalazzi, Barbara2,4; Taubner, Ruth-Sophie5; Rittmann, Simon K. -M. R.5; Antunes, Andre6 | |
| 通讯作者 | Jebbar, Mohamed |
| 来源期刊 | SPACE SCIENCE REVIEWS
 |
| ISSN | 0038-6308 |
| EISSN | 1572-9672 |
| 出版年 | 2020 |
| 卷号 | 216期号:1 |
| 英文摘要 | The icy moons of the outer Solar System harbor potentially habitable environments for life, however, compared to the terrestrial biosphere, these environments are characterized by extremes in temperature, pressure, pH, and other physico-chemical conditions. Therefore, the search for life on these icy worlds is anchored on the study of terrestrial extreme environments (termed analogue sites), which harbor microorganisms at the frontiers of polyextremophily. These so-called extremophiles have been found in areas previously considered sterile: hot springs, hydrothermal vents, acidic or alkaline lakes, hypersaline environments, deep sea sediments, glaciers, and arid areas, amongst others. Such model systems and communities in extreme terrestrial environments may provide important information relevant to the astrobiology of icy bodies, including the composition of potential biological communities and the identification of biosignatures that they may produce. Extremophiles can use either sunlight (phototrophs) or chemical energy (chemotrophs) as energy sources, and different chemical compounds as electron donors or acceptors. Aerobic microorganisms use oxygen (O-2) as a terminal electron acceptor, whereas anaerobic microorganisms may use nitrate (NO3-), sulfate (SO4(2)(-)), carbon dioxide (CO2), Fe(III), or other organic or inorganic molecules during respiration. The phylogenetic diversity of extremophiles is very high, leading to their broad dispersal across the phylogenetic tree of life together with a wide variety in metabolic diversity. Some metabolisms are specific to archaea, for example, methanogenesis, an anaerobic respiration during which methane (CH4) is produced. Also sulfur-reduction performed by some bacteria and archaea is considered as a primitive metabolism which is restricted to anoxic sulfur-rich habitats in nature. Methanogenesis and sulfur reduction are of specific interest for icy moon research as it might be one of the few known terrestrial metabolisms possible on these celestial bodies. Therefore, the adaptation of these intriguing microorganisms to extreme conditions will be highlighted within this review. |
| 英文关键词 | Extremophiles Prokaryotes Metabolism Diversity Adaptation Space explorat |
| 类型 | Review |
| 语种 | 英语 |
| 国家 | France ; Italy ; South Africa ; Austria ; Peoples R China |
| 开放获取类型 | Green Submitted |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000514454600003 |
| WOS关键词 | EXTREMELY HALOPHILIC ARCHAEON ; BARBERTON GREENSTONE-BELT ; DEEP-SEA BACTERIUM ; COMPATIBLE SOLUTE ACCUMULATION ; POLYUNSATURATED FATTY-ACIDS ; HIGH HYDROSTATIC-PRESSURE ; SALINUS GEN. NOV. ; SP. NOV. ; METHANOGENIC ARCHAEON ; FAMILY HALOBACTERIACEAE |
| WOS类目 | Astronomy & Astrophysics |
| WOS研究方向 | Astronomy & Astrophysics |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/315598 |
| 作者单位 | 1.Univ Brest, CNRS, IFREMER, Lab Microbiol Environm Extremes, F-29280 Plouzane, France; 2.Univ Bologna, Dipartimento Sci Biol Geol & Ambientali, Bologna, Italy; 3.CNRS, Ctr Biophys Mol, Rue Charles Sadron, F-45071 Orleans, France; 4.Univ Johannesburg, Dept Geol, APK Campus, Johannesburg, South Africa; 5.Univ Wien, Dept Ecogen & Syst Biol, Archaea Biol & Ecogen Div, Archaea Physiol & Biotechnol Grp, Vienna, Austria; 6.MUST, State Key Lab Lunar & Planetary Sci, Taipa, Macau, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jebbar, Mohamed,Hickman-Lewis, Keyron,Cavalazzi, Barbara,et al. Microbial Diversity and Biosignatures: An Icy Moons Perspective[J],2020,216(1). |
| APA | Jebbar, Mohamed,Hickman-Lewis, Keyron,Cavalazzi, Barbara,Taubner, Ruth-Sophie,Rittmann, Simon K. -M. R.,&Antunes, Andre.(2020).Microbial Diversity and Biosignatures: An Icy Moons Perspective.SPACE SCIENCE REVIEWS,216(1). |
| MLA | Jebbar, Mohamed,et al."Microbial Diversity and Biosignatures: An Icy Moons Perspective".SPACE SCIENCE REVIEWS 216.1(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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