FN Archimer Export Format
PT J
TI The influence of nutritional conditions on metal uptake by the mixotrophic dual symbiosis harboring vent mussel Bathymodiolus azoricus
BT 
AF MARTINS, Ines
   BETTENCOURT, Raul
   COLACO, Ana
   SARRADIN, Pierre-Marie
   SANTOS, Ricardo Serrao
   COSSON, Richard
AS 1:1;2:1;3:1;4:2;5:1;6:3;
FF 1:;2:;3:PDG-DOP-DCB-EEP-LEP;4:PDG-DOP-DCB-EEP;5:;6:;
C1 Univ Azores, IMAR, DOP Dept Oceanog & Fisheries, P-9901862 Horta, Portugal.
   IFREMER, Ctr Brest, Dept Etud Ecosyst Profond, F-29280 Plouzane, France.
   Univ Nantes, Lab Biol Marine, ISOMer, MMS, F-44322 Nantes, France.
C2 UNIV AZORES, PORTUGAL
   IFREMER, FRANCE
   UNIV NANTES, FRANCE
SI BREST
SE PDG-DOP-DCB-EEP-LEP
   PDG-DOP-DCB-EEP
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-europe
   copubli-univ-france
IF 2.616
TC 8
TU Centre national de la recherche scientifique
   Université catholique de l'Ouest
   Université de Nantes
   Université du Maine
UR https://archimer.ifremer.fr/doc/00026/13741/11328.pdf
LA English
DT Article
CR MOMARETO
BO Unknown
DE ;Vent mussel B. azoricus;Metal accumulation;Nutritional condition;Metallothioneins;Condition indices
AB The vent mussel Bathymodiolus azoricus, host thioautotrophic and methanotrophic bacteria, in their gills and complementary, is able to digest suspended organic matter. But the involvement of nutritional status in metal uptake and storage remains unclear. The influence of B. azoricus physiological condition on its response to the exposure of a mixture of metals in solution is addressed. Mussels from the Menez Gwen field were exposed to 50 mu g L-1 Cd, plus 25 mu g L-1 Cu and 100 mu g L-1 Zn for 24 days. Four conditions were tested: (i) mussels harboring both bacteria but not feed, (ii) harboring only methanotrophic bacteria, (iii) without bacteria but fed during exposure and (iv) without bacteria during starvation. Unexposed mussels under the same conditions were used as controls. Eventual seasonal variations were assessed. Metal levels were quantified in subcellular fractions in gills and digestive gland. Metallothionein levels and condition indices were also quantified. Gill sections were used for fluorescence in situ hybridization (FISH) to assess the temporal distribution of symbiotic associations. Starvation damages metal homeostasis mechanisms and increase the intracellular Zn and MT levels function. There is a clear metallic competition for soluble and insoluble intracellular ligands at each condition. Seasonal variations were observed at metal uptake and storage. (C) 2010 Elsevier Inc. All rights reserved.
PY 2011
PD JAN
SO Comparative Biochemistry And Physiology C-toxicology & Pharmacology
SN 1532-0456
PU Elsevier Science Inc
VL 153
IS 1
UT 000285814600005
BP 40
EP 52
DI 10.1016/j.cbpc.2010.08.004
ID 13741
ER

EF