FN Archimer Export Format
PT J
TI Limited carbon cycling due to high-pressure effects on the deep-sea microbiome
BT 
AF Amano, Chie
   Zhao, Zihao
   Sintes, Eva
   Reinthaler, Thomas
   Stefanschitz, Julia
   Kisadur, Murat
   Utsumi, Motoo
   Herndl, Gerhard J.
AS 1:1;2:1;3:1,2;4:1;5:1;6:1;7:3,4;8:1,5,6;
FF 1:;2:;3:;4:;5:;6:;7:;8:;
C1 Department of Functional and Evolutionary Ecology, Bio-Oceanography and Marine Biology Unit, University of Vienna, Vienna, Austria
   Instituto Español de Oceanografía-CSIC, Centro Oceanográfico de Baleares, Palma de Mallorca, Spain
   Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
   Microbiology Research Center for Sustainability, University of Tsukuba, Tsukuba, Ibaraki, Japan
   NIOZ, Department of Marine Microbiology and Biogeochemistry, Royal Netherlands Institute for Sea Research, Utrecht University, Texel, The Netherlands
   Vienna Metabolomics & Proteomics Center, University of Vienna, Vienna, Austria
C2 UNIV VIENNA, AUSTRIA
   IEO CSIC, SPAIN
   UNIV TSUKUBA, JAPAN
   UNIV TSUKUBA, JAPAN
   INST SEA RESEARCH (NIOZ), NETHERLANDS
   UNIV VIENNA, AUSTRIA
IF 18.3
TC 10
UR https://archimer.ifremer.fr/doc/00808/91962/97913.pdf
   https://archimer.ifremer.fr/doc/00808/91962/97914.pdf
   https://archimer.ifremer.fr/doc/00808/91962/97915.xlsx
   https://archimer.ifremer.fr/doc/00808/91962/97916.csv
   https://archimer.ifremer.fr/doc/00808/91962/97917.xlsx
   https://archimer.ifremer.fr/doc/00808/91962/97918.jpg
   https://archimer.ifremer.fr/doc/00808/91962/97919.csv
LA English
DT Article
CR MOBYDICK-THEMISTO
BO Marion Dufresne
AB Deep-sea microbial communities are exposed to high-pressure conditions, which has a variable impact on prokaryotes depending on whether they are piezophilic (that is, pressure-loving), piezotolerant or piezosensitive. While it has been suggested that elevated pressures lead to higher community-level metabolic rates, the response of these deep-sea microbial communities to the high-pressure conditions of the deep sea is poorly understood. Based on microbial activity measurements in the major oceanic basins using an in situ microbial incubator, we show that the bulk heterotrophic activity of prokaryotic communities becomes increasingly inhibited at higher hydrostatic pressure. At 4,000 m depth, the bulk heterotrophic prokaryotic activity under in situ hydrostatic pressure was about one-third of that measured in the same community at atmospheric pressure conditions. In the bathypelagic zone—between 1,000 and 4,000 m depth—~85% of the prokaryotic community was piezotolerant and ~5% of the prokaryotic community was piezophilic. Despite piezosensitive-like prokaryotes comprising only ~10% (mainly members of Bacteroidetes, Alteromonas) of the deep-sea prokaryotic community, the more than 100-fold metabolic activity increase of these piezosensitive prokaryotes upon depressurization leads to high apparent bulk metabolic activity. Overall, the heterotrophic prokaryotic activity in the deep sea is likely to be substantially lower than hitherto assumed, with major impacts on the oceanic carbon cycling. 
PY 2022
PD DEC
SO Nature Geoscience
SN 1752-0894
PU Springer Science and Business Media LLC
VL 15
IS 12
UT 000889417500002
BP 1041
EP 1047
DI 10.1038/s41561-022-01081-3
ID 91962
ER

EF