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Life in extreme environments
Critically what it means to be an extremophile is examined, and the implications for evolution, biotechnology and especially the search for life in the Universe are examined.
Survival of endospores of Bacillus subtilis on spacecraft surfaces under simulated martian environments: implications for the forward contamination of Mars.
METABOLIC ACTIVITY OF MICROORGANISMS IN EVAPORITES 1
- L. Rothschild, L. Giver, M. R. White, R. Mancinelli
- Environmental ScienceJournal of phycology
- 1 June 1994
Evidence is presented that prokaryotes inhabiting a natural evaporite crust of halite and gypsum are metabolically active while inside the evaporite for at least 10 months, suggesting the possibility that microorganisms found in ancient evaporite deposits may have been part of an evaporite community.
Schrödinger’s microbes: Tools for distinguishing the living from the dead in microbial ecosystems
A number of techniques that have been used to test for viability (live/dead determination) and/or activity in various contexts are described, including newer techniques that are compatible with or complementary to downstream nucleic acid sequencing.
Earth analogs for Martian life. Microbes in evaporites, a new model system for life on Mars.
- L. Rothschild
- 1 November 1990
A reappraisal of the habitability of planets around M dwarf stars.
It is concluded that M dwarf stars may indeed be viable hosts for planets on which the origin and evolution of life can occur and it makes sense to include M dwarfs in programs that seek to find habitable worlds and evidence of life.
Sustainable life support on Mars – the potential roles of cyanobacteria
- Cyprien Verseux, M. Baqué, K. Lehto, J. D. de Vera, L. Rothschild, D. Billi
- Environmental ScienceInternational Journal of Astrobiology
- 3 August 2015
Insights are given into how and why cyanobacteria could play a role in the development of self-sustainable manned outposts on Mars, and a wide range of life-support biological processes based on Martian resources.
Biopan-survival I: exposure of the osmophiles synechococcus sp. (Nageli) and haloarcula sp. to the space environment
The evolution of photosynthesis…again?
- L. Rothschild
- Environmental SciencePhilosophical Transactions of the Royal Society B…
- 27 August 2008
The probability of evolving a carboxylase is approached by creating an inventory of carbon-fixation enzymes and comparing them, leading to the conclusion that carbon fixation in general is basic to life and has arisen multiple times.
Earth analogues for past and future life on Mars: isolation of perchlorate resistant halophiles from Big Soda Lake
- Toshitaka Matsubara, K. Fujishima, C. Saltikov, Satoshi Nakamura, L. Rothschild
- BiologyInternational Journal of Astrobiology
- 28 November 2016
The results revealed that these new model microbes are capable of tolerating the hypothesized hypersaline and perchlorate-rich Martian subsurface water environment and would serve as a new model to understand the biochemistry that may occur on Mars.