FN Archimer Export Format
PT J
TI Evolution of Thermophilic Microbial Communities from a Deep-Sea Hydrothermal Chimney under Electrolithoautotrophic Conditions with Nitrate
BT 
AF Pillot, Guillaume
   Amin Ali, Oulfat
   Davidson, Sylvain
   Shintu, Laetitia
   Combet-Blanc, Yannick
   Godfroy, Anne
   Bonin, Patricia
   Liebgott, Pierre-Pol
AS 1:1;2:1;3:1;4:2;5:1;6:3;7:1;8:1;
FF 1:;2:;3:;4:;5:;6:PDG-REM-EEP-LMEE;7:;8:;
C1 Aix Marseille Université, Université de Toulon, CNRS, IRD, MIO UM 110, 13288 Marseille, France
   Aix Marseille Université, CNRS Centrale Marseille, iSm2, 13284 Marseille, France
   Laboratoire de Microbiologie des Environnements Extrêmes, Université de Bretagne Occidentale, CNRS, IFREMER, 29280 Plouzané, France
C2 UNIV AIX MARSEILLE, FRANCE
   UNIV AIX MARSEILLE, FRANCE
   IFREMER, FRANCE
SI BREST
SE PDG-REM-EEP-LMEE
UM BEEP-LM2E
IN WOS Ifremer UMR
   DOAJ
   copubli-france
   copubli-univ-france
IF 4.926
TC 6
UR https://archimer.ifremer.fr/doc/00738/85020/89976.pdf
   https://archimer.ifremer.fr/doc/00738/85020/89977.zip
LA English
DT Article
CR MOMARSAT2014
BO Pourquoi pas ?
DE ;microbial electrochemical systems;electroautotrophy;thermophily;deep-sea hydrothermal vent;nitrate
AB Recent studies have shown the presence of an abiotic electrical current across the walls of deep-sea hydrothermal chimneys, allowing the growth of electroautotrophic microbial communities. To understand the role of the different phylogenetic groups and metabolisms involved, this study focused on electrotrophic enrichment with nitrate as electron acceptor. The biofilm density, community composition, production of organic compounds, and electrical consumption were monitored by FISH confocal microscopy, qPCR, metabarcoding, NMR, and potentiostat measurements. A statistical analysis by PCA showed the correlation between the different parameters (qPCR, organic compounds, and electron acceptors) in three distinct temporal phases. In our conditions, the Archaeoglobales have been shown to play a key role in the development of the community as the first colonizers on the cathode and the first producers of organic compounds, which are then used as an organic source by heterotrophs. Finally, through subcultures of the community, we showed the development of a greater biodiversity over time. This observed phenomenon could explain the biodiversity development in hydrothermal contexts, where energy sources are transient and unstable. 
PY 2021
PD DEC
SO Microorganisms
SN 2076-2607
PU MDPI AG
VL 9
IS 12
UT 000735913500001
DI 10.3390/microorganisms9122475
ID 85020
ER

EF