FN Archimer Export Format
PT J
TI Rock-crushing derived hydrogen directly supports a methanogenic community: significance for the deep biosphere
BT 
AF Parkes, Ronald John
   Berlendis, Sabrina
   Roussel, Erwan
   Bahruji, Hasiliza
   Webster, Gordon
   Oldroyd, Anthony
   Weightman, Andrew J.
   Bowker, Michael
   Davies, Philipp R
   Sass, Henrik
AS 1:1;2:1;3:1;4:2;5:1,3;6:1;7:3;8:2;9:2;10:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;
C1 School of Earth and Ocean Sciences; Main Building, Park Place, Cardiff University; Cardiff CF10 3AT Wales, UK
   Cardiff Catalysis Institute, School of Chemistry; Cardiff University; Cardiff, CF10 3AT Wales, UK
   School of Biosciences; Sir Martin Evans Building, Cardiff University; Museum Avenue Cardiff CF10 3AX Wales, UK
C2 UNIV CARDIFF, UK
   UNIV CARDIFF, UK
   UNIV CARDIFF, UK
IF 2.975
TC 11
UR https://archimer.ifremer.fr/doc/00483/59444/62283.pdf
   https://archimer.ifremer.fr/doc/00483/59444/62284.pdf
LA English
DT Article
AB Microbial populations exist to great depths on Earth, but with apparently insufficient energy supply. Earthquake rock fracturing produces H2 from mechanochemical water splitting, however, microbial utilization of this widespread potential energy source has not been directly demonstrated. Here, we show experimentally that mechanochemically generated H2 from granite can be directly, long‐term, utilized by a CH4 producing microbial community. This is consistent with CH4 formation in subsurface rock fracturing in the environment. Our results not only support water splitting H2 generation as a potential deep biosphere energy source, but as an oxidant must also be produced, they suggest that there is also a respiratory oxidant supply in the subsurface which is independent of photosynthesis. This may explain the widespread distribution of facultative aerobes in subsurface environments. A range of common rocks were shown to produce mechanochemical H2, and hence, this process should be widespread in the subsurface, with the potential for considerable mineral fuelled CH4 production. 
PY 2019
PD APR
SO Environmental Microbiology Reports
SN 1758-2229
PU Wiley
VL 11
IS 2
UT 000461871000011
BP 165
EP 172
DI 10.1111/1758-2229.12723
ID 59444
ER

EF