Microbial Extremophiles at the Limits of Life

@article{Pikuta2007MicrobialEA,
  title={Microbial Extremophiles at the Limits of Life},
  author={Elena V. Pikuta and Richard B. Hoover and Jane S Tang},
  journal={Critical Reviews in Microbiology},
  year={2007},
  volume={33},
  pages={183 - 209}
}
Prokaryotic extremophiles were the first representatives of life on Earth and they are responsible for the genesis of geological structures during the evolution and creation of all currently known ecosystems. Flexibility of the genome probably allowed life to adapt to a wide spectrum of extreme environments. As a result, modern prokaryotic diversity formed in a framework of physico-chemical factors, and it is composed of: thermophilic, psychrophilic, acidophilic, alkaliphilic, halophilic… 
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References

SHOWING 1-10 OF 352 REFERENCES
Biology of extremophilic and extremotolerant methanotrophs
TLDR
Basic knowledge of other stress protectants, as well as bioenergetic and genetic aspects of methanotroph adaptation, is still lacking and is necessary for better understanding the molecular mechanisms underlying the versatility of methnotrophs and for the development of novel biotechnological processes.
Extremophiles as a source for novel enzymes.
Growth of the facultative anaerobes from Antarctica, Alaska, and Patagonia at low temperatures
TLDR
Experimental data is presented for psychrotolerant, non spore-forming, facultative anaerobes isolated from geographically different cold regions of the authors' planet and the growth response on changing from anaerobic conditions to aerobic with cultivation at low temperatures.
Anaerobic Chemotrophic Alkaliphiles
TLDR
This work has attempted to describe an alkaliphilic microbial community as a trophic system by isolating representatives of the key functional groups, and resulted in the discovery of a number of new genera belonging to different phylogenetic branches.
Hyperthermophiles and their possible potential in biotechnology
Environmental diversity of bacteria and archaea.
TLDR
The development of molecular phylogenetics has recently enabled characterization of naturally occurring microbial biota without cultivation, and the breadth and extent of extant microbial diversity has become much clearer.
Astrobiological significance of chemolithoautotrophic acidophiles
TLDR
The lithoautotrophs include Bacteria and Archaea belonging to diverse genera containing thermophilic and mesophilic species and the possible relevance of microbial acidophiles to Venus, Io, and acidic inclusions in glaciers and icy moons is considered.
Extremophiles: developments of their special functions and potential resources.
  • S. Fujiwara
  • Biology, Engineering
    Journal of bioscience and bioengineering
  • 2002
Novel energy metabolism in anaerobic hyperthermophilic archaea: a modified Embden-Meyerhof pathway.
Bioenergetic Aspects of Halophilism
  • A. Oren
  • Biology
    Microbiology and Molecular Biology Reviews
  • 1999
SUMMARY Examinination of microbial diversity in environments of increasing salt concentrations indicates that certain types of dissimilatory metabolism do not occur at the highest salinities.
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