FN Archimer Export Format
PT J
TI Deuterium in Marine Organic Biomarkers: Toward a new tool for quantifying aquatic mixotrophy
BT 
AF Cormier, Marc‐André
   Berard, Jean-Baptiste
   Bougaran, Gael
   Trueman, Clive N.
   Mayor, Daniel J.
   Lampitt, Richard S.
   Kruger, Nicholas J.
   Flynn, Kevin J.
   Rickaby, Rosalind E. M.
AS 1:1;2:2;3:2;4:3;5:4;6:4;7:5;8:6;9:1;
FF 1:;2:PDG-ODE-PHYTOX-PHYSALG;3:PDG-ODE-PHYTOX-PHYSALG;4:;5:;6:;7:;8:;9:;
C1 Deuterium in Marine Organic Biomarkers: Toward a new tool for quantifying aquatic mixotrophyUniversity of Oxford Department of Earth Sciences South Parks Road Oxford OX1 3AN ,UK
   IFREMER, Physiology and Biotechnology of Algae (PBA) Laboratory rue de l'Ile d'Yeu, BP 21105 44311 Nantes cedex 3 ,France
   Ocean and Earth Science University of Southampton Southampton SO14 3ZH, UK
   Ocean Biogeosciences National Oceanography Centre Southampton SO14 3ZH, UK
   University of Oxford Department of Plant Sciences South Parks Road Oxford OX1 3RB, UK
   Plymouth Marine Laboratory Plymouth Prospect Place PL1 3DH, UK
C2 UNIV OXFORD, UK
   IFREMER, FRANCE
   UNIV SOUTHAMPTON, UK
   NOC, UK
   UNIV OXFORD, UK
   PML, UK
SI NANTES
SE PDG-ODE-PHYTOX-PHYSALG
IN WOS Ifremer UPR
   copubli-europe
IF 9.4
TC 5
UR https://archimer.ifremer.fr/doc/00750/86227/91521.pdf
   https://archimer.ifremer.fr/doc/00750/86227/91522.pdf
LA English
DT Article
DE ;biomarker;carbon cycle;hydrogen;isotope;mixoplankton;mixotrophy;protist
AB The traditional separation between primary producers (autotrophs) and consumers (heterotrophs) at the base of the marine food web is being increasingly replaced by the paradigm that mixoplankton, planktonic protists with the nutritional ability to use both phago(hetero)trophy and photo(auto)trophy to access energy, are widespread globally. Thus many "phytoplankton" eat, while 50% of "protozooplankton" also perform photosynthesis. Mixotrophy may enhance primary production, biomass transfer to higher trophic levels, and the efficiency of the biological pump to sequester atmospheric CO2 into the deep ocean. Although this view is gaining traction, science lacks a tool to quantify the relative contributions of autotrophy and heterotrophy in planktonic protists. This hinders our understanding of their impacts on carbon cycling within marine pelagic ecosystems. It has been shown that the hydrogen (H) isotopic signature of lipids is uniquely sensitive to heterotrophy relative to autotrophy in plants and bacteria. Here we explored whether it is also sensitive to the trophic status in protists. The new understanding of H isotope signature of lipid biomarkers suggests it offers great potential as a novel tool for quantifying the prevalence of mixotrophy in diverse marine microorganisms and thus to investigate the implications of the “mixoplankton” paradigm. 
PY 2022
PD MAY
SO New Phytologist
SN 0028-646X
PU Wiley
VL 234
IS 3
UT 000764431100001
BP 776
EP 782
DI 10.1111/nph.18023
ID 86227
ER

EF