FN Archimer Export Format
PT J
TI Heterocapsa cf. bohaiensis (dinoflagellate): identification and response to nickel and iron stress revealed through chlorophyll a fluorescence
BT 
AF MÉRIOT, V.
   ROUSSEL, Amelie
   BRUNET, N.
   CHOMERAT, Nicolas
   BILIEN, Gwenael
   LE DÉAN, Loic
   BERTEAUX-LECELLIER, V.
   COULOMBIER, N.
   LEBOUVIER, N.
   JAUFFRAIS, Thierry
AS 1:1,2;2:1,2;3:3;4:4;5:4;6:2;7:5;8:6;9:1;10:2;
FF 1:;2:;3:;4:PDG-ODE-LITTORAL-LERBO;5:PDG-ODE-LITTORAL-LERBO;6:PDG-RBE-LEADNC;7:;8:;9:;10:PDG-RBE-LEADNC;
C1 ISEA, EA7484, Campus de Nouville, University of New Caledonia, 98851 Nouméa, New Caledonia
   Ifremer, IRD, University of New Caledonia, University of La Réunion, CNRS, UMR 9220 ENTROPIE, 101 Promenade Roger Laroque, 98897 Nouméa, New Caledonia
   CRESICA, 98851 Nouméa, New Caledonia
   Ifremer, Littoral - LERBO, Place de la Croix, Concarneau, F-29900, France
   CNRS, Ifremer, IRD, University of New Caledonia, University of La Réunion, UMR 9220 ENTROPIE, 101 Promenade Roger Laroque, Nouméa, New Caledonia
   ADECAL Technopole, 1 Bis Rue Berthelot, 98846 Nouméa, New Caledonia
C2 UNIV NOUVELLE CALEDONIE, FRANCE
   IFREMER, FRANCE
   CRESICA, FRANCE
   IFREMER, FRANCE
   CNRS, FRANCE
   ADECAL TECHNOPOLE, FRANCE
SI LA TRINITE
   CONCARNEAU
   NOUMEA
SE PDG-ODE-LITTORAL-LERMPL
   PDG-ODE-LITTORAL-LERBO
   PDG-RBE-LEADNC
UM ENTROPIE
IN DOAJ
IF 2.7
TC 0
UR https://archimer.ifremer.fr/doc/00869/98122/107406.pdf
   https://archimer.ifremer.fr/doc/00869/98122/107407.docx
LA English
DT Article
DE ;dinoflagellate;metal stress;metallic trace elements;microalgae;PAM fluorometry;photosynthesis.
AB Metal toxicity in marine ecosystems is a growing issue owing to terrestrial runoff and anthropogenic pollution. Heterocapsa cf. bohaiensis, a newly isolated dinoflagellate from New Caledonia, was cultivated in photobioreactors operating continuously with high concentrations (10-3 M) of nickel (Ni2+) and/or iron (Fe2+) and their photosynthetic efficiency was assessed. The photosynthetic measurements indicated that H. cf. bohaiensis was tolerant to Ni2+ but sensitive to Fe2+ high concentrations. In the presence of Fe2+, maximum quantum efficiency and maximal relative electron transport rate decreased from 0.62 to 0.47 and from 156 to 102, respectively. The JIP-tests suggested a reduction of the photosynthesis in response to Fe2+ due to a disruption in the electron transport chain rather than a defect in the light absorption and trapping capacity which were on the contrary enhanced by Fe2+. These results bring new knowledge on the impact of nickel and iron on microalgae photosynthetic pathways. 
PY 2024
PD JAN
SO Photosynthetica
SN 0300-3604
PU Institute of Experimental Botany
VL 62
IS 1
BP 27
EP 39
DI 10.32615/ps.2023.038
ID 98122
ER

EF