Solar-driven chemical energy source for a Martian biota

Details Solar-driven chemical energy source for a Martian biota Solar-driven chemical energy source for a Martian biota

Jul 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979orli....9..241c&link_type=abstract

Origins of Life, Volume 9, Issue 3, pp.241-249

Mathematics

Logic

5

Scientific paper

Microorganisms deep in the Martian soil could derive energy indirectly from the sun via chemical reactions involving atmospheric photolysis products of the solar ultraviolet flux. The Viking discovery of a chemically uniform regolith which, though poor in organics, is rich in sulfur-containing compounds suggests reaction sequences in which sulfur is recycled through reduced and oxidized states by biologically catalyzed reactions with photochemically-produced atmospheric constitutents. One candidate reaction, reduction of soil sulfate minerals by molecular hydrogen, is already exploited on earth by bacteria of the ubiquitous and tenaciousDesulfovibrio genus.

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