FN Archimer Export Format
PT J
TI Kleptoplast distribution, photosynthetic efficiency and sequestration mechanisms in intertidal benthic foraminifera
BT 
AF Jesus, Bruno
   Jauffrais, Thierry
   Trampe, Erik C. L.
   Goessling, Johannes W.
   Lekieffre, Charlotte
   Meibom, Anders
   Kühl, Michael
   Geslin, Emmanuelle
AS 1:1,2;2:3,4;3:5;4:5;5:6;6:7,8;7:5;8:4;
FF 1:;2:PDG-RBE-LEADNC;3:;4:;5:;6:;7:;8:;
C1 EA2160, Laboratoire Mer Molécules Santé, Université de Nantes, Nantes, France
   BioISI—Biosystems & Integrative Sciences Institute, Campo Grande University of Lisboa, Faculty of Sciences, Lisboa, Portugal
   Ifremer, IRD, Univ Nouvelle-Calédonie, Univ La Réunion, CNRS, UMR 9220 ENTROPIE, 101 Promenade Roger Laroque, 98897, Noumea, New Caledonia
   LPG UMR 6112, Univ Angers, Université de Nantes, CNRS, F-49000, Angers, France
   Marine Biological Section, Department of Biology, University of Copenhagen, Strandpromenaden 5, 3000, Helsingør, DK, Denmark
   Cell and Plant Physiology Laboratory, University of Grenoble Alpes, CNRS, CEA, INRAE, Grenoble, France
   Laboratory for Biological Geochemistry, School of Architecture, Civil and Environmental Engineering (ENAC), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
   Center for Advanced Surface Analysis, Institute of Earth Sciences, University of Lausanne, Lausanne, Switzerland
C2 UNIV NANTES, FRANCE
   UNIV LISBOA, PORTUGAL
   IFREMER, FRANCE
   UNIV ANGERS, FRANCE
   UNIV COPENHAGEN, DENMARK
   UNIV GRENOBLE ALPES, FRANCE
   ECOLE POLYTECH FED LAUSANNE, SWITZERLAND
   UNIV LAUSANNE, SWITZERLAND
SI NOUMEA
SE PDG-RBE-LEADNC
UM ENTROPIE
IN WOS Ifremer UMR
   copubli-france
   copubli-europe
   copubli-univ-france
   copubli-int-hors-europe
IF 11
TC 11
UR https://archimer.ifremer.fr/doc/00728/83992/88937.pdf
   https://archimer.ifremer.fr/doc/00728/83992/88938.docx
   https://archimer.ifremer.fr/doc/00728/83992/88939.avi
   https://archimer.ifremer.fr/doc/00728/83992/88940.avi
LA English
DT Article
AB Foraminifera are ubiquitously distributed in marine habitats, playing a major role in marine sediment carbon sequestration and the nitrogen cycle. They exhibit a wide diversity of feeding and behavioural strategies (heterotrophy, autotrophy and mixotrophy), including species with the ability of sequestering intact functional chloroplasts from their microalgal food source (kleptoplastidy), resulting in a mixotrophic lifestyle. The mechanisms by which kleptoplasts are integrated and kept functional inside foraminiferal cytosol are poorly known. In our study, we investigated relationships between feeding strategies, kleptoplast spatial distribution and photosynthetic functionality in two shallow-water benthic foraminifera (Haynesina germanica and Elphidium williamsoni), both species feeding on benthic diatoms. We used a combination of observations of foraminiferal feeding behaviour, test morphology, cytological TEM-based observations and HPLC pigment analysis, with non-destructive, single-cell level imaging of kleptoplast spatial distribution and PSII quantum efficiency. The two species showed different feeding strategies, with H. germanica removing diatom content at the foraminifer’s apertural region and E. williamsoni on the dorsal site. All E. williamsoni parameters showed that this species has higher autotrophic capacity albeit both feeding on benthic diatoms. This might represent two different stages in the evolutionary process of establishing a permanent symbiotic relationship, or may reflect different trophic strategies. 
PY 2022
PD MAR
SO Isme Journal
SN 1751-7362
PU Springer Science and Business Media LLC
VL 16
IS 3
UT 000706049900001
BP 822
EP 832
DI 10.1038/s41396-021-01128-0
ID 83992
ER

EF