Relationship between the occurrence of filamentous bacteria on Bathymodiolus azoricus shell and the physiological and toxicological status of the vent mussel
|Author(s)||Martins I.1, Colaco A.1, Santos Raphael1, Lesongeur Francoise2, Godfroy Anne2, Sarradin Pierre-Marie3, Cosson R. P.4|
|Affiliation(s)||1 : Univ Azores, IMAR, DOP Dept Oceanog & Fisheries, P-9901862 Horta, Portugal.
2 : IFREMER, DEEP Lab Microbiol Environm Extremes, UMR6197, F-29280 Plouzane, France.
3 : IFREMER, DEEP Lab Environm Profond, F-29280 Plouzane, France.
4 : Univ Nantes, Marine Biol Lab, ISOMer, EA 2160, F-44322 Nantes, France.
|Source||Journal of Experimental Marine Biology and Ecology (0022-0981) (Elsevier), 2009-07 , Vol. 376 , N. 1 , P. 1-6|
|WOS© Times Cited||8|
|Keyword(s)||Vent mussel, Metals, Metallothioneins, Filamentous bacteria, Eiffel Tower, Biomarkers|
|Abstract||The edifice walls of the Eiffel Tower hydrothermal vent site (Mid-Atlantic Ridge, Lucky Strike vent field) are populated with dense communities of dual symbioses harboring vent mussel Bathymodiolus azoricus, some of which are covered by white filamentous mats belonging to sulfur-oxidizing bacteria. Mussels were collected in both the presence and absence of the filamentous bacteria. A sample of the filamentous bacteria was collected and water measurements of temperature, CH4 and H2S were recorded at the collection area. The whole soft tissues were analyzed for total lipid, carbohydrate and total protein. Metallothioneins and metals (Cu, Fe and Zn) levels were determined in the major organs. The results showed no significant physiological and toxicological evidence that emphasizes the influence of associated sulfur-oxidizing filamentous bacteria on B. azoricus mussel shells. However, B. azoricus mussel seems to be well adapted to the assorted physico-chemical characteristics from the surrounding environment since it is able to manage the constant fluctuation of physico-chemical compounds.|