Physiological, metabolic and biotechnological features of extremely thermophilic microorganisms

被引:23
作者
Counts, James A. [1 ]
Zeldes, Benjamin M. [1 ]
Lee, Laura L. [1 ]
Straub, Christopher T. [1 ]
Adams, Michael W. W. [2 ]
Kelly, Robert M. [1 ]
机构
[1] North Carolina State Univ, Dept Chem & Biomol Engn, Raleigh, NC 27695 USA
[2] Univ Georgia, Dept Biochem & Mol Biol, Athens, GA 30602 USA
基金
美国国家科学基金会;
关键词
SP-NOV REPRESENTS; ARCHAEBACTERIAL GENUS SULFOLOBUS; SULFUR OXYGENASE REDUCTASE; CALDICELLULOSIRUPTOR-SACCHAROLYTICUS; PYROCOCCUS-FURIOSUS; HYDROGEN-PRODUCTION; THERMUS-THERMOPHILUS; PLANT BIOMASS; THERMOTOGA-NEAPOLITANA; METALLOSPHAERA-SEDULA;
D O I
10.1002/wsbm.1377
中图分类号
R-3 [医学研究方法]; R3 [基础医学];
学科分类号
1001 ;
摘要
The current upper thermal limit for life as we know it is approximately 120 degrees C. Microorganisms that grow optimally at temperatures of 75 degrees C and above are usually referred to as extreme thermophiles' and include both bacteria and archaea. For over a century, there has been great scientific curiosity in the basic tenets that support life in thermal biotopes on earth and potentially on other solar bodies. Extreme thermophiles can be aerobes, anaerobes, autotrophs, heterotrophs, or chemolithotrophs, and are found in diverse environments including shallow marine fissures, deep sea hydrothermal vents, terrestrial hot springsbasically, anywhere there is hot water. Initial efforts to study extreme thermophiles faced challenges with their isolation from difficult to access locales, problems with their cultivation in laboratories, and lack of molecular tools. Fortunately, because of their relatively small genomes, many extreme thermophiles were among the first organisms to be sequenced, thereby opening up the application of systems biology-based methods to probe their unique physiological, metabolic and biotechnological features. The bacterial genera Caldicellulosiruptor, Thermotoga and Thermus, and the archaea belonging to the orders Thermococcales and Sulfolobales, are among the most studied extreme thermophiles to date. The recent emergence of genetic tools for many of these organisms provides the opportunity to move beyond basic discovery and manipulation to biotechnologically relevant applications of metabolic engineering. WIREs Syst Biol Med 2017, 9:e1377. doi: 10.1002/wsbm.1377 For further resources related to this article, please visit the .
引用
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页数:23
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