FN Archimer Export Format
PT J
TI Microbial ecology of the newly discovered serpentinite-hosted Old City hydrothermal field (southwest Indian ridge)
BT 
AF LECOEUVRE, Aurelien
   MENEZ, Benedicte
   CANNAT, Mathilde
   CHAVAGNAC, Valerie
   GERARD, Emmanuelle
AS 1:1;2:1;3:1;4:2;5:1;
FF 1:;2:;3:;4:;5:;
C1 Univ Paris, Inst Phys Globe Paris, CNRS, UMR 7154, Paris, France.
   Univ Toulouse, Geosci Environm Toulouse, CNRS UMR 5563, Toulouse, France.
C2 UNIV PARIS, FRANCE
   UNIV TOULOUSE, FRANCE
IF 11.217
TC 29
UR https://archimer.ifremer.fr/doc/00756/86799/92273.pdf
   https://archimer.ifremer.fr/doc/00756/86799/92274.docx
LA English
DT Article
CR ROVSMOOTH
BO Pourquoi pas ?
DE ;Biofilms;Metagenomics;Microbial ecology
AB Lost City (mid-Atlantic ridge) is a unique oceanic hydrothermal field where carbonate-brucite chimneys are colonized by a single phylotype of archaeal Methanosarcinales, as well as sulfur- and methane-metabolizing bacteria. So far, only one submarine analog of Lost City has been characterized, the Prony Bay hydrothermal field (New Caledonia), which nonetheless shows more microbiological similarities with ecosystems associated with continental ophiolites. This study presents the microbial ecology of the 'Lost City'-type Old City hydrothermal field, recently discovered along the southwest Indian ridge. Five carbonate-brucite chimneys were sampled and subjected to mineralogical and geochemical analyses, microimaging, as well as 16S rRNA-encoding gene and metagenomic sequencing. Dominant taxa and metabolisms vary between chimneys, in conjunction with the predicted redox state, while potential formate- and CO-metabolizing microorganisms as well as sulfur-metabolizing bacteria are always abundant. We hypothesize that the variable environmental conditions resulting from the slow and diffuse hydrothermal fluid discharge that currently characterizes Old City could lead to different microbial populations between chimneys that utilize CO and formate differently as carbon or electron sources. Old City discovery and this first description of its microbial ecology opens up attractive perspectives for understanding environmental factors shaping communities and metabolisms in oceanic serpentinite-hosted ecosystems. 
PY 2021
PD MAR
SO Isme Journal
SN 1751-7362
PU Springernature
VL 15
IS 3
UT 000584393300002
BP 818
EP 832
DI 10.1038/s41396-020-00816-7
ID 86799
ER

EF