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ISME J. 2014 Jul;8(7):1370-80. doi: 10.1038/ismej.2013.250. Epub 2014 Jan 16.

Microorganisms persist at record depths in the subseafloor of the Canterbury Basin.

Author information

1
1] Université de Bretagne Occidentale (UBO, UEB), IUEM-UMR 6197, Laboratoire de Microbiologie des Environnements Extrêmes (LMEE), Plouzané, France [2] CNRS, IUEM-UMR 6197, LMEE, Plouzané, France [3] Ifremer, UMR6197, LMEE, Plouzané, France.
2
Université de Brest, UEB, Laboratoire Universitaire de Biodiversité et d'Ecologie Microbienne EA 3882, IFR148 SFR ScInBioS, ESIAB, Plouzané, France.
3
Université de Rennes I, CNRS, UMR 6553 ECOBIO, Rennes, France.
4
Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), Hannover, Germany.
5
Université de Bretagne Occidentale (UBO, UEB), IUEM-UMR 6197, Laboratoire de Microbiologie des Environnements Extrêmes (LMEE), Plouzané, France.
6
Organic Geochemistry Group, Department of Geosciences and MARUM Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany.

Erratum in

  • ISME J. 2014 Nov;8(11):2352.

Abstract

The subsurface realm is colonized by microbial communities to depths of >1000 meters below the seafloor (m.b.sf.), but little is known about overall diversity and microbial distribution patterns at the most profound depths. Here we show that not only Bacteria and Archaea but also Eukarya occur at record depths in the subseafloor of the Canterbury Basin. Shifts in microbial community composition along a core of nearly 2 km reflect vertical taxa zonation influenced by sediment depth. Representatives of some microbial taxa were also cultivated using methods mimicking in situ conditions. These results suggest that diverse microorganisms persist down to 1922 m.b.sf. in the seafloor of the Canterbury Basin and extend the previously known depth limits of microbial evidence (i) from 159 to 1740 m.b.sf. for Eukarya and (ii) from 518 to 1922 m.b.sf. for Bacteria.

PMID:
24430485
PMCID:
PMC4069392
DOI:
10.1038/ismej.2013.250
[Indexed for MEDLINE]
Free PMC Article

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