FN Archimer Export Format
PT J
TI Infestation of the cupped oysters Crassostrea angulata, C. gigas and their first-generation hybrids by the copepod Myicola ostreae: differences in susceptibility and host response
BT 
AF BATISTA, F. M.
   BOUDRY, Pierre
   DOS SANTOS, A.
   RENAULT, Tristan
   RUANO, F.
AS 1:1,2;2:3;3:4;4:5;5:4;
FF 1:;2:PDG-DOP-DCB-PFOM-PI;3:;4:PDG-DOP-DCN-AGSAE-LGP;5:;
C1 INRB IPIMAR, P-8700305 Olhao, Portugal.
   Univ Porto, Inst Ciencias Biomed Abel Salazar ICBAS, P-4099003 Oporto, Portugal.
   IFREMER, UMR Physiol & Ecophysiol Mollusques Marins M100, F-29280 Plouzane, France.
   INRB IPIMAR, P-1449006 Lisbon, Portugal.
   IFREMER, Lab Genet Pathol, F-17390 La Tremblade, France.
C2 IPIMAR, PORTUGAL
   UNIV PORTO, PORTUGAL
   IFREMER, FRANCE
   IPIMAR, PORTUGAL
   IFREMER, FRANCE
SI BREST
   LA TREMBLADE
SE PDG-DOP-DCB-PFOM-PI
   PDG-DOP-DCN-AGSAE-LGP
IN WOS Ifremer jusqu'en 2018
   copubli-europe
IF 1.607
TC 7
UR https://archimer.ifremer.fr/doc/2009/publication-6442.pdf
LA English
DT Article
DE ;Encapsulation;Host reaction;Host parasite relationship;Dominance inherence;Parasitism;Hybridization;Copepods;Oysters
AB We Studied the prevalence and intensity of the parasitic copepod Myicola ostreae in 2 closely related oysters Crassostrea angulata and C. gigas and their F1 hybrids. The effects on host and host reaction were also analysed to better understand host-parasite relationships between copepods and bivalve molluscs. Full reciprocal crosses were carried out between C. angulata and C. gigas and the progenies were reared in the wild in Ria Formosa Lagoon (Portugal), allowing natural infestation by M. ostreae. Prevalence and intensity were significantly higher in C. angulata than in C. gigas. The parasite level of F1 hybrids was similar to C. angulata and significantly higher than in C. gigas. The results of our study support a hypothesis of dominantly inherited susceptibility to M. ostreae infestation. Moreover, copepods were observed on the gill surface of C. gigas engulfed by a capsule-like structure. Histological analyses revealed that the copepods were surrounded by a massive agglomerate of haemocyte-like cells encircled by a thin layer of fibroblast-like cells. This encapsulation response was not observed in C. angulata or in F1 hybrids. These results suggest that the differential susceptibility to M. ostreae between C. angulata and C. gigas may be ascribed to host defence factors.
PY 2009
PD APR
SO Parasitology
SN 0031-1820
PU Cambridge University Press
VL 136
IS 5
UT 000265728400006
BP 537
EP 543
DI 10.1017/S0031182009005691
ID 6442
ER

EF