FN Archimer Export Format
PT J
TI High rates of apoptosis visualized in the symbiont-bearing gills of deep-sea Bathymodiolus mussels
BT 
AF PIQUET, Berenice
   SHILLITO, Bruce
   LALLIER, Francois H.
   DUPERRON, Sebastien
   ANDERSEN, Ann C.
AS 1:1,2;2:2;3:1;4:2,3,4;5:1;
FF 1:;2:;3:;4:;5:;
C1 Sorbonne Univ, CNRS,SBR, Team Adaptat & Biol Invertebres Marins Condit Ext, Lab Adaptat & Divers Milieu Marin,AD2M,ABICE,UMR, Roscoff, France.
   Sorbonne Univ, CNRS, Lab Biol Organismes & Ecosyst Aquat BOREA,UMR 720, Team Adaptat Milieux Extremes,AMEX,IRD,UCN,UA,MNH, 7 Quai St Bernard, Paris, France.
   CNRS, Team Cyanobacteries Cyanotoxines & Environm, Lab Mecanismes Commun & Adaptat Microorganismes, Museum Natl Hist Nat,CCE,UMR 7245, 12 Rue Buffon, Paris, France.
   Inst Univ France, Paris, France.
C2 UNIV PARIS 06, FRANCE
   UNIV PARIS 06, FRANCE
   MNHN, FRANCE
   INST UNIV FRANCE, FRANCE
IF 2.74
TC 13
UR https://archimer.ifremer.fr/doc/00484/59526/62500.pdf
   https://archimer.ifremer.fr/doc/00484/59526/62501.pdf
   https://archimer.ifremer.fr/doc/00484/59526/62502.tif
   https://archimer.ifremer.fr/doc/00484/59526/62503.tiff
   https://archimer.ifremer.fr/doc/00484/59526/62504.tiff
   https://archimer.ifremer.fr/doc/00484/59526/62505.tif
   https://archimer.ifremer.fr/doc/00484/59526/62506.tiff
LA English
DT Article
CR BICOSE
   BIOBAZ 2013
   WACS
BO Pourquoi pas ?
AB Symbiosis between Bathymodiolus and Gammaproteobacteria allows these deep-sea mussels to live in toxic environments such as hydrothermal vents and cold seeps. The quantity of endosymbionts within the gill-bacteriocytes appears to vary according to the hosts environment; however, the mechanisms of endosymbiont population size regulation remain obscure. We investigated the possibility of a control of endosymbiont density by apoptosis, a programmed cell death, in three mussel species. Fluorometric TUNEL and active Caspase-3-targeting antibodies were used to visualize and quantify apoptotic cells in mussel gills. To control for potential artefacts due to depressurization upon specimen recovery from the deep-sea, the apoptotic rates between mussels recovered unpressurised, versus mussels recovered in a pressure-maintaining device, were compared in two species from hydro thermal vents on the Mid-Atlantic Ridge: Bathymodiolus azoricus and B. puteoserpentis. Results show that pressurized recovery had no significant effect on the apoptotic rate in the gill filaments. Apoptotic levels were highest in the ciliated zone and in the circulating hemocytes, compared to the bacteriocyte zone. Apoptotic gill-cells in B. aff. boomerang from cold seeps off the Gulf of Guinea show similar distribution patterns. Deep-sea symbiotic mussels have much higher rates of apoptosis in their gills than the coastal mussel Mytilus edulis, which lacks chemolithoautotrophic symbionts. We discuss how apoptosis might be one of the mechanisms that contribute to the adaptation of deep-sea mussels to toxic environments and/or to symbiosis. 
PY 2019
PD FEB
SO Plos One
SN 1932-6203
PU Public Library Science
VL 14
IS 2
UT 000457744200028
DI 10.1371/journal.pone.0211499
ID 59526
ER

EF