FN Archimer Export Format
PT J
TI Influence of Temperature and Pearl Rotation on Biomineralization in the Pearl Oyster Pinctada margaritifera
BT 
AF LE MOULLAC, Gilles
   SCHUCK, Lucie
   CHABRIER, Sebastien
   BELLIARD, Corinne
   LYONNARD, Pierre
   BROUSTAL, Floriane
   SOYEZ, Claude
   SAULNIER, Denis
   BRAHMI, Chloe
   KY, Chin-Long
   BELIAEFF, Benoit
AS 1:1;2:1;3:2;4:1;5:1;6:1;7:1;8:1;9:3;10:1;11:1;
FF 1:PDG-RBE-RMPF;2:;3:;4:PDG-RBE-RMPF;5:;6:PDG-ODE-LITTORAL-LERN;7:PDG-RBE-RMPF;8:PDG-RBE-RMPF;9:;10:PDG-RBE-RMPF;11:PDG-DCOP;
C1 Ifremer, UMR EIO 241, Labex Corail, Ctr Pacifique, BP 49, F-98719 Tahiti, French Polynesi, France.
   Univ Polynesie Francaise, Lab GEPASUD, BP 6570, F-98702 Faaa, French Polynesi, Fr Polynesia.
   Univ Polynesie Francaise, UMR EIO 241, Labex Corail, BP 6570, F-98702 Faaa, French Polynesi, Fr Polynesia.
C2 IFREMER, FRANCE
   UNIV POLYNESIE FRANCAISE, FRANCE
   UNIV POLYNESIE FRANCAISE, FRANCE
SI TAHITI
   PORT-EN-BESSIN
SE PDG-RBE-RMPF
   PDG-ODE-LITTORAL-LERN
   PDG-DCOP
UM EIO
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 3.017
TC 11
UR https://archimer.ifremer.fr/doc/00450/56196/57753.pdf
   https://archimer.ifremer.fr/doc/00450/56196/57754.pdf
LA English
DT Article
DE ;Magnetometer;Rotation speed;Nacre growth;Nacre thickness;Gene expression;Pmarg-Pif177
AB The objective of this study was to observe the impact of temperature on pearl formation using  an integrative approach describing the rotation of the pearls, the rate of nacre deposition, the  thickness of the aragonite tablets and the biomineralizing potential of the pearl sac tissue  though the expression level of some key genes. Fifty pearl oysters were grafted with  magnetized nuclei to allow the rotation of the pearls to be described. Four months later, 32 of  these pearl oysters were exposed to four temperatures (22, 26, 30 and 34°C) for 2 weeks.  Results showed that the rotation speed differed according to the movement direction: pearls  with axial movement (AM) had a significantly higher rotation speed than those with random  movement (RM). Pearl growth rate was influenced by temperature, with a maximum between  26 and 30°C but almost no growth at 34°C. Lastly, among the nine genes implicated in the  biomineralization process, the Pmarg-Pif177 expression was significantly modified by  temperature. These results showed that the rotation speed of the pearls was not linked to  pearl growth or to the expression profiles of biomineralizing genes targeted in this study. On  the basis of our results, we consider that pearl rotation is a more complex process than  formerly thought. Mechanisms involved could include a strong environmental forcing in  immediate proximity to the pearl. Another implication of our findings is that, in the context of  ocean warming, pearl growth and quality can be expected to decrease in pearl oysters  exposed to temperatures above 30°C. 
PY 2018
PD SEP
SO Journal Of Experimental Biology
SN 0022-0949
PU Company Biologists Ltd
VL 221
IS 18
UT 000446063500019
DI 10.1242/jeb.186858
ID 56196
ER

EF