FN Archimer Export Format
PT J
TI Strategies among phytoplankton in response to alleviation of nutrient stress in a subtropical gyre
BT 
AF Lampe, Robert H.
   Wang, Seaver
   Cassar, Nicolas
   Marchetti, Adrian
AS 1:1,2;2:3;3:3,4;4:2;
FF 1:;2:;3:;4:;
C1 Integrative Oceanography Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, USA
   Department of Marine Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
   Division of Earth and Ocean Sciences, Nicholas School of the Environment, Duke University, Durham, NC, USA
   Laboratoire des Sciences de l’Environnement Marin (LEMAR), UMR 6539 UBO/CNRS/IRD/IFREMER, Institut Universitaire Européen de la Mer (IUEM), Brest, France
C2 UNIV CALIF SAN DIEGO, USA
   UNIV NORTH CAROLINA CHAPEL HILL, USA
   UNIV DUKE, USA
   UBO, FRANCE
UM LEMAR
IN WOS Cotutelle UMR
   copubli-int-hors-europe
IF 9.18
TC 11
UR https://archimer.ifremer.fr/doc/00511/62288/66513.pdf
   https://archimer.ifremer.fr/doc/00511/62288/66514.pdf
   https://archimer.ifremer.fr/doc/00511/62288/66515.xlsx
   https://archimer.ifremer.fr/doc/00511/62288/66516.xlsx
   https://archimer.ifremer.fr/doc/00511/62288/66517.xlsx
   https://archimer.ifremer.fr/doc/00511/62288/66518.xlsx
LA English
DT Article
AB Despite generally low primary productivity and diatom abundances in oligotrophic subtropical gyres, the North Atlantic Subtropical Gyre (NASG) exhibits significant diatom-driven carbon export on an annual basis. Subsurface pulses of nutrients likely fuel brief episodes of diatom growth, but the exact mechanisms utilized by diatoms in response to these nutrient injections remain understudied within near-natural settings. Here we simulated delivery of subsurface nutrients and compare the response among eukaryotic phytoplankton using a combination of physiological techniques and metatranscriptomics. We show that eukaryotic phytoplankton groups exhibit differing levels of transcriptional responsiveness and expression of orthologous genes in response to release from nutrient limitation. In particular, strategies for use of newly delivered nutrients are distinct among phytoplankton groups. Diatoms channel new nitrate to growth-related strategies while physiological measurements and gene expression patterns of other groups suggest alternative strategies. The gene expression patterns displayed here provide insights into the cellular mechanisms that underlie diatom subsistence during chronic nitrogen-depleted conditions and growth upon nutrient delivery that can enhance carbon export from the surface ocean. 
PY 2019
PD DEC
SO Isme Journal
SN 1751-7362
PU Springer Science and Business Media LLC
VL 13
IS 12
UT 000497952500008
BP 2984
EP 2997
DI 10.1038/s41396-019-0489-6
ID 62288
ER

EF